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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/hwmon
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/hwmon')
-rw-r--r--kernel/drivers/hwmon/Kconfig58
-rw-r--r--kernel/drivers/hwmon/Makefile4
-rw-r--r--kernel/drivers/hwmon/abx500.c3
-rw-r--r--kernel/drivers/hwmon/ad7314.c1
-rw-r--r--kernel/drivers/hwmon/adcxx.c1
-rw-r--r--kernel/drivers/hwmon/ads1015.c2
-rw-r--r--kernel/drivers/hwmon/ads7871.c1
-rw-r--r--kernel/drivers/hwmon/adt7310.c1
-rw-r--r--kernel/drivers/hwmon/applesmc.c6
-rw-r--r--kernel/drivers/hwmon/atxp1.c58
-rw-r--r--kernel/drivers/hwmon/coretemp.c5
-rw-r--r--kernel/drivers/hwmon/dell-smm-hwmon.c1054
-rw-r--r--kernel/drivers/hwmon/f71882fg.c176
-rw-r--r--kernel/drivers/hwmon/fam15h_power.c121
-rw-r--r--kernel/drivers/hwmon/g762.c2
-rw-r--r--kernel/drivers/hwmon/gpio-fan.c8
-rw-r--r--kernel/drivers/hwmon/ibmpowernv.c7
-rw-r--r--kernel/drivers/hwmon/ina2xx.c243
-rw-r--r--kernel/drivers/hwmon/it87.c43
-rw-r--r--kernel/drivers/hwmon/k10temp.c1
-rw-r--r--kernel/drivers/hwmon/lm70.c35
-rw-r--r--kernel/drivers/hwmon/lm75.c9
-rw-r--r--kernel/drivers/hwmon/max1111.c1
-rw-r--r--kernel/drivers/hwmon/max197.c2
-rw-r--r--kernel/drivers/hwmon/max31790.c603
-rw-r--r--kernel/drivers/hwmon/nct6775.c165
-rw-r--r--kernel/drivers/hwmon/nct7802.c317
-rw-r--r--kernel/drivers/hwmon/ntc_thermistor.c84
-rw-r--r--kernel/drivers/hwmon/pmbus/Kconfig20
-rw-r--r--kernel/drivers/hwmon/pmbus/Makefile1
-rw-r--r--kernel/drivers/hwmon/pmbus/adm1275.c358
-rw-r--r--kernel/drivers/hwmon/pmbus/lm25066.c7
-rw-r--r--kernel/drivers/hwmon/pmbus/ltc2978.c482
-rw-r--r--kernel/drivers/hwmon/pmbus/max20751.c64
-rw-r--r--kernel/drivers/hwmon/pmbus/max34440.c9
-rw-r--r--kernel/drivers/hwmon/pmbus/max8688.c19
-rw-r--r--kernel/drivers/hwmon/pmbus/pmbus.c5
-rw-r--r--kernel/drivers/hwmon/pmbus/pmbus.h448
-rw-r--r--kernel/drivers/hwmon/pmbus/pmbus_core.c31
-rw-r--r--kernel/drivers/hwmon/pmbus/zl6100.c11
-rw-r--r--kernel/drivers/hwmon/pwm-fan.c1
-rw-r--r--kernel/drivers/hwmon/scpi-hwmon.c289
-rw-r--r--kernel/drivers/hwmon/sht15.c22
-rw-r--r--kernel/drivers/hwmon/tc74.c177
-rw-r--r--kernel/drivers/hwmon/tmp102.c18
-rw-r--r--kernel/drivers/hwmon/w83627ehf.c26
-rw-r--r--kernel/drivers/hwmon/w83792d.c27
47 files changed, 4159 insertions, 867 deletions
diff --git a/kernel/drivers/hwmon/Kconfig b/kernel/drivers/hwmon/Kconfig
index 25d9e7262..80a73bfc1 100644
--- a/kernel/drivers/hwmon/Kconfig
+++ b/kernel/drivers/hwmon/Kconfig
@@ -321,6 +321,15 @@ config SENSORS_APPLESMC
Say Y here if you have an applicable laptop and want to experience
the awesome power of applesmc.
+config SENSORS_ARM_SCPI
+ tristate "ARM SCPI Sensors"
+ depends on ARM_SCPI_PROTOCOL
+ depends on THERMAL || !THERMAL_OF
+ help
+ This driver provides support for temperature, voltage, current
+ and power sensors available on ARM Ltd's SCP based platforms. The
+ actual number and type of sensors exported depend on the platform.
+
config SENSORS_ASB100
tristate "Asus ASB100 Bach"
depends on X86 && I2C
@@ -371,6 +380,17 @@ config SENSORS_DS1621
This driver can also be built as a module. If so, the module
will be called ds1621.
+config SENSORS_DELL_SMM
+ tristate "Dell laptop SMM BIOS hwmon driver"
+ depends on X86
+ help
+ This hwmon driver adds support for reporting temperature of different
+ sensors and controls the fans on Dell laptops via System Management
+ Mode provided by Dell BIOS.
+
+ When option I8K is also enabled this driver provides legacy /proc/i8k
+ userspace interface for i8kutils package.
+
config SENSORS_DA9052_ADC
tristate "Dialog DA9052/DA9053 ADC"
depends on PMIC_DA9052
@@ -509,7 +529,7 @@ config SENSORS_G762
config SENSORS_GPIO_FAN
tristate "GPIO fan"
- depends on GPIOLIB
+ depends on GPIOLIB || COMPILE_TEST
depends on THERMAL || THERMAL=n
help
If you say yes here you get support for fans connected to GPIO lines.
@@ -598,8 +618,8 @@ config SENSORS_IT87
depends on !PPC
select HWMON_VID
help
- If you say yes here you get support for ITE IT8705F, IT8712F,
- IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
+ If you say yes here you get support for ITE IT8705F, IT8712F, IT8716F,
+ IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8732F, IT8758E,
IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, IT8790E,
IT8603E, IT8620E, and IT8623E sensor chips, and the SiS950 clone.
@@ -829,6 +849,16 @@ config SENSORS_MAX6697
This driver can also be built as a module. If so, the module
will be called max6697.
+config SENSORS_MAX31790
+ tristate "Maxim MAX31790 sensor chip"
+ depends on I2C
+ help
+ If you say yes here you get support for 6-Channel PWM-Output
+ Fan RPM Controller.
+
+ This driver can also be built as a module. If so, the module
+ will be called max31790.
+
config SENSORS_HTU21
tristate "Measurement Specialties HTU21D humidity/temperature sensors"
depends on I2C
@@ -1106,8 +1136,8 @@ config SENSORS_NTC_THERMISTOR
send notifications about the temperature.
Currently, this driver supports
- NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, and NCP15WL333
- from Murata and B57330V2103 from EPCOS.
+ NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, NCP15WL333,
+ and NCP03WF104 from Murata and B57330V2103 from EPCOS.
This driver can also be built as a module. If so, the module
will be called ntc-thermistor.
@@ -1129,8 +1159,8 @@ config SENSORS_NCT6775
help
If you say yes here you get support for the hardware monitoring
functionality of the Nuvoton NCT6106D, NCT6775F, NCT6776F, NCT6779D,
- NCT6791D, NCT6792D and compatible Super-I/O chips. This driver
- replaces the w83627ehf driver for NCT6775F and NCT6776F.
+ NCT6791D, NCT6792D, NCT6793D, and compatible Super-I/O chips. This
+ driver replaces the w83627ehf driver for NCT6775F and NCT6776F.
This driver can also be built as a module. If so, the module
will be called nct6775.
@@ -1186,7 +1216,8 @@ config SENSORS_PWM_FAN
config SENSORS_SHT15
tristate "Sensiron humidity and temperature sensors. SHT15 and compat."
- depends on GPIOLIB
+ depends on GPIOLIB || COMPILE_TEST
+ select BITREVERSE
help
If you say yes here you get support for the Sensiron SHT10, SHT11,
SHT15, SHT71, SHT75 humidity and temperature sensors.
@@ -1442,6 +1473,7 @@ config SENSORS_INA209
config SENSORS_INA2XX
tristate "Texas Instruments INA219 and compatibles"
depends on I2C
+ select REGMAP_I2C
help
If you say yes here you get support for INA219, INA220, INA226,
INA230, and INA231 power monitor chips.
@@ -1452,6 +1484,16 @@ config SENSORS_INA2XX
This driver can also be built as a module. If so, the module
will be called ina2xx.
+config SENSORS_TC74
+ tristate "Microchip TC74"
+ depends on I2C
+ help
+ If you say yes here you get support for Microchip TC74 single
+ input temperature sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called tc74.
+
config SENSORS_THMC50
tristate "Texas Instruments THMC50 / Analog Devices ADM1022"
depends on I2C
diff --git a/kernel/drivers/hwmon/Makefile b/kernel/drivers/hwmon/Makefile
index b4a40f17e..12a32398f 100644
--- a/kernel/drivers/hwmon/Makefile
+++ b/kernel/drivers/hwmon/Makefile
@@ -44,11 +44,13 @@ obj-$(CONFIG_SENSORS_ADT7462) += adt7462.o
obj-$(CONFIG_SENSORS_ADT7470) += adt7470.o
obj-$(CONFIG_SENSORS_ADT7475) += adt7475.o
obj-$(CONFIG_SENSORS_APPLESMC) += applesmc.o
+obj-$(CONFIG_SENSORS_ARM_SCPI) += scpi-hwmon.o
obj-$(CONFIG_SENSORS_ASC7621) += asc7621.o
obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o
obj-$(CONFIG_SENSORS_CORETEMP) += coretemp.o
obj-$(CONFIG_SENSORS_DA9052_ADC)+= da9052-hwmon.o
obj-$(CONFIG_SENSORS_DA9055)+= da9055-hwmon.o
+obj-$(CONFIG_SENSORS_DELL_SMM) += dell-smm-hwmon.o
obj-$(CONFIG_SENSORS_DME1737) += dme1737.o
obj-$(CONFIG_SENSORS_DS620) += ds620.o
obj-$(CONFIG_SENSORS_DS1621) += ds1621.o
@@ -114,6 +116,7 @@ obj-$(CONFIG_SENSORS_MAX6639) += max6639.o
obj-$(CONFIG_SENSORS_MAX6642) += max6642.o
obj-$(CONFIG_SENSORS_MAX6650) += max6650.o
obj-$(CONFIG_SENSORS_MAX6697) += max6697.o
+obj-$(CONFIG_SENSORS_MAX31790) += max31790.o
obj-$(CONFIG_SENSORS_MC13783_ADC)+= mc13783-adc.o
obj-$(CONFIG_SENSORS_MCP3021) += mcp3021.o
obj-$(CONFIG_SENSORS_MENF21BMC_HWMON) += menf21bmc_hwmon.o
@@ -140,6 +143,7 @@ obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc47b397.o
obj-$(CONFIG_SENSORS_SMSC47M1) += smsc47m1.o
obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o
obj-$(CONFIG_SENSORS_AMC6821) += amc6821.o
+obj-$(CONFIG_SENSORS_TC74) += tc74.o
obj-$(CONFIG_SENSORS_THMC50) += thmc50.o
obj-$(CONFIG_SENSORS_TMP102) += tmp102.o
obj-$(CONFIG_SENSORS_TMP103) += tmp103.o
diff --git a/kernel/drivers/hwmon/abx500.c b/kernel/drivers/hwmon/abx500.c
index 6cb89c0eb..d87cae8c6 100644
--- a/kernel/drivers/hwmon/abx500.c
+++ b/kernel/drivers/hwmon/abx500.c
@@ -377,7 +377,7 @@ static int setup_irqs(struct platform_device *pdev)
}
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
- abx500_temp_irq_handler, IRQF_NO_SUSPEND, "abx500-temp", pdev);
+ abx500_temp_irq_handler, 0, "abx500-temp", pdev);
if (ret < 0)
dev_err(&pdev->dev, "Request threaded irq failed (%d)\n", ret);
@@ -470,6 +470,7 @@ static const struct of_device_id abx500_temp_match[] = {
{ .compatible = "stericsson,abx500-temp" },
{},
};
+MODULE_DEVICE_TABLE(of, abx500_temp_match);
#endif
static struct platform_driver abx500_temp_driver = {
diff --git a/kernel/drivers/hwmon/ad7314.c b/kernel/drivers/hwmon/ad7314.c
index 11955467f..202c1fbb3 100644
--- a/kernel/drivers/hwmon/ad7314.c
+++ b/kernel/drivers/hwmon/ad7314.c
@@ -157,7 +157,6 @@ MODULE_DEVICE_TABLE(spi, ad7314_id);
static struct spi_driver ad7314_driver = {
.driver = {
.name = "ad7314",
- .owner = THIS_MODULE,
},
.probe = ad7314_probe,
.remove = ad7314_remove,
diff --git a/kernel/drivers/hwmon/adcxx.c b/kernel/drivers/hwmon/adcxx.c
index 04c08c2f7..69e0bb97e 100644
--- a/kernel/drivers/hwmon/adcxx.c
+++ b/kernel/drivers/hwmon/adcxx.c
@@ -234,7 +234,6 @@ MODULE_DEVICE_TABLE(spi, adcxx_ids);
static struct spi_driver adcxx_driver = {
.driver = {
.name = "adcxx",
- .owner = THIS_MODULE,
},
.id_table = adcxx_ids,
.probe = adcxx_probe,
diff --git a/kernel/drivers/hwmon/ads1015.c b/kernel/drivers/hwmon/ads1015.c
index f155b8380..2b3105c8a 100644
--- a/kernel/drivers/hwmon/ads1015.c
+++ b/kernel/drivers/hwmon/ads1015.c
@@ -126,7 +126,7 @@ static int ads1015_reg_to_mv(struct i2c_client *client, unsigned int channel,
struct ads1015_data *data = i2c_get_clientdata(client);
unsigned int pga = data->channel_data[channel].pga;
int fullscale = fullscale_table[pga];
- const unsigned mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
+ const int mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
return DIV_ROUND_CLOSEST(reg * fullscale, mask);
}
diff --git a/kernel/drivers/hwmon/ads7871.c b/kernel/drivers/hwmon/ads7871.c
index 3eff73b62..4fd9e4de1 100644
--- a/kernel/drivers/hwmon/ads7871.c
+++ b/kernel/drivers/hwmon/ads7871.c
@@ -237,7 +237,6 @@ static int ads7871_remove(struct spi_device *spi)
static struct spi_driver ads7871_driver = {
.driver = {
.name = DEVICE_NAME,
- .owner = THIS_MODULE,
},
.probe = ads7871_probe,
diff --git a/kernel/drivers/hwmon/adt7310.c b/kernel/drivers/hwmon/adt7310.c
index 5994cf68e..ec02f4f0d 100644
--- a/kernel/drivers/hwmon/adt7310.c
+++ b/kernel/drivers/hwmon/adt7310.c
@@ -104,7 +104,6 @@ MODULE_DEVICE_TABLE(spi, adt7310_id);
static struct spi_driver adt7310_driver = {
.driver = {
.name = "adt7310",
- .owner = THIS_MODULE,
.pm = ADT7X10_DEV_PM_OPS,
},
.probe = adt7310_spi_probe,
diff --git a/kernel/drivers/hwmon/applesmc.c b/kernel/drivers/hwmon/applesmc.c
index 0af63da6b..0af7fd311 100644
--- a/kernel/drivers/hwmon/applesmc.c
+++ b/kernel/drivers/hwmon/applesmc.c
@@ -537,7 +537,7 @@ static int applesmc_init_index(struct applesmc_registers *s)
static int applesmc_init_smcreg_try(void)
{
struct applesmc_registers *s = &smcreg;
- bool left_light_sensor, right_light_sensor;
+ bool left_light_sensor = 0, right_light_sensor = 0;
unsigned int count;
u8 tmp[1];
int ret;
@@ -1138,7 +1138,7 @@ out:
return ret;
}
-/* Create accelerometer ressources */
+/* Create accelerometer resources */
static int applesmc_create_accelerometer(void)
{
struct input_dev *idev;
@@ -1191,7 +1191,7 @@ out:
return ret;
}
-/* Release all ressources used by the accelerometer */
+/* Release all resources used by the accelerometer */
static void applesmc_release_accelerometer(void)
{
if (!smcreg.has_accelerometer)
diff --git a/kernel/drivers/hwmon/atxp1.c b/kernel/drivers/hwmon/atxp1.c
index 4c829bb2f..f2f2f2fc7 100644
--- a/kernel/drivers/hwmon/atxp1.c
+++ b/kernel/drivers/hwmon/atxp1.c
@@ -12,10 +12,9 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
+ * The ATXP1 can reside on I2C addresses 0x37 or 0x4e. The chip is
+ * not auto-detected by the driver and must be instantiated explicitly.
+ * See Documentation/i2c/instantiating-devices for more information.
*/
#include <linux/kernel.h>
@@ -43,8 +42,6 @@ MODULE_AUTHOR("Sebastian Witt <se.witt@gmx.net>");
#define ATXP1_VIDMASK 0x1f
#define ATXP1_GPIO1MASK 0x0f
-static const unsigned short normal_i2c[] = { 0x37, 0x4e, I2C_CLIENT_END };
-
struct atxp1_data {
struct i2c_client *client;
struct mutex update_lock;
@@ -259,48 +256,6 @@ static struct attribute *atxp1_attrs[] = {
};
ATTRIBUTE_GROUPS(atxp1);
-/* Return 0 if detection is successful, -ENODEV otherwise */
-static int atxp1_detect(struct i2c_client *new_client,
- struct i2c_board_info *info)
-{
- struct i2c_adapter *adapter = new_client->adapter;
-
- u8 temp;
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return -ENODEV;
-
- /* Detect ATXP1, checking if vendor ID registers are all zero */
- if (!((i2c_smbus_read_byte_data(new_client, 0x3e) == 0) &&
- (i2c_smbus_read_byte_data(new_client, 0x3f) == 0) &&
- (i2c_smbus_read_byte_data(new_client, 0xfe) == 0) &&
- (i2c_smbus_read_byte_data(new_client, 0xff) == 0)))
- return -ENODEV;
-
- /*
- * No vendor ID, now checking if registers 0x10,0x11 (non-existent)
- * showing the same as register 0x00
- */
- temp = i2c_smbus_read_byte_data(new_client, 0x00);
-
- if (!((i2c_smbus_read_byte_data(new_client, 0x10) == temp) &&
- (i2c_smbus_read_byte_data(new_client, 0x11) == temp)))
- return -ENODEV;
-
- /* Get VRM */
- temp = vid_which_vrm();
-
- if ((temp != 90) && (temp != 91)) {
- dev_err(&adapter->dev, "atxp1: Not supporting VRM %d.%d\n",
- temp / 10, temp % 10);
- return -ENODEV;
- }
-
- strlcpy(info->type, "atxp1", I2C_NAME_SIZE);
-
- return 0;
-}
-
static int atxp1_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -314,6 +269,11 @@ static int atxp1_probe(struct i2c_client *client,
/* Get VRM */
data->vrm = vid_which_vrm();
+ if (data->vrm != 90 && data->vrm != 91) {
+ dev_err(dev, "atxp1: Not supporting VRM %d.%d\n",
+ data->vrm / 10, data->vrm % 10);
+ return -ENODEV;
+ }
data->client = client;
mutex_init(&data->update_lock);
@@ -342,8 +302,6 @@ static struct i2c_driver atxp1_driver = {
},
.probe = atxp1_probe,
.id_table = atxp1_id,
- .detect = atxp1_detect,
- .address_list = normal_i2c,
};
module_i2c_driver(atxp1_driver);
diff --git a/kernel/drivers/hwmon/coretemp.c b/kernel/drivers/hwmon/coretemp.c
index ed303ba3a..6a27eb2fe 100644
--- a/kernel/drivers/hwmon/coretemp.c
+++ b/kernel/drivers/hwmon/coretemp.c
@@ -52,7 +52,7 @@ module_param_named(tjmax, force_tjmax, int, 0444);
MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
#define BASE_SYSFS_ATTR_NO 2 /* Sysfs Base attr no for coretemp */
-#define NUM_REAL_CORES 32 /* Number of Real cores per cpu */
+#define NUM_REAL_CORES 128 /* Number of Real cores per cpu */
#define CORETEMP_NAME_LENGTH 19 /* String Length of attrs */
#define MAX_CORE_ATTRS 4 /* Maximum no of basic attrs */
#define TOTAL_ATTRS (MAX_CORE_ATTRS + 1)
@@ -63,7 +63,8 @@ MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
#define TO_ATTR_NO(cpu) (TO_CORE_ID(cpu) + BASE_SYSFS_ATTR_NO)
#ifdef CONFIG_SMP
-#define for_each_sibling(i, cpu) for_each_cpu(i, cpu_sibling_mask(cpu))
+#define for_each_sibling(i, cpu) \
+ for_each_cpu(i, topology_sibling_cpumask(cpu))
#else
#define for_each_sibling(i, cpu) for (i = 0; false; )
#endif
diff --git a/kernel/drivers/hwmon/dell-smm-hwmon.c b/kernel/drivers/hwmon/dell-smm-hwmon.c
new file mode 100644
index 000000000..c43318d34
--- /dev/null
+++ b/kernel/drivers/hwmon/dell-smm-hwmon.c
@@ -0,0 +1,1054 @@
+/*
+ * dell-smm-hwmon.c -- Linux driver for accessing the SMM BIOS on Dell laptops.
+ *
+ * Copyright (C) 2001 Massimo Dal Zotto <dz@debian.org>
+ *
+ * Hwmon integration:
+ * Copyright (C) 2011 Jean Delvare <jdelvare@suse.de>
+ * Copyright (C) 2013, 2014 Guenter Roeck <linux@roeck-us.net>
+ * Copyright (C) 2014, 2015 Pali Rohár <pali.rohar@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/dmi.h>
+#include <linux/capability.h>
+#include <linux/mutex.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include <linux/sched.h>
+
+#include <linux/i8k.h>
+
+#define I8K_SMM_FN_STATUS 0x0025
+#define I8K_SMM_POWER_STATUS 0x0069
+#define I8K_SMM_SET_FAN 0x01a3
+#define I8K_SMM_GET_FAN 0x00a3
+#define I8K_SMM_GET_SPEED 0x02a3
+#define I8K_SMM_GET_FAN_TYPE 0x03a3
+#define I8K_SMM_GET_NOM_SPEED 0x04a3
+#define I8K_SMM_GET_TEMP 0x10a3
+#define I8K_SMM_GET_TEMP_TYPE 0x11a3
+#define I8K_SMM_GET_DELL_SIG1 0xfea3
+#define I8K_SMM_GET_DELL_SIG2 0xffa3
+
+#define I8K_FAN_MULT 30
+#define I8K_FAN_MAX_RPM 30000
+#define I8K_MAX_TEMP 127
+
+#define I8K_FN_NONE 0x00
+#define I8K_FN_UP 0x01
+#define I8K_FN_DOWN 0x02
+#define I8K_FN_MUTE 0x04
+#define I8K_FN_MASK 0x07
+#define I8K_FN_SHIFT 8
+
+#define I8K_POWER_AC 0x05
+#define I8K_POWER_BATTERY 0x01
+
+static DEFINE_MUTEX(i8k_mutex);
+static char bios_version[4];
+static struct device *i8k_hwmon_dev;
+static u32 i8k_hwmon_flags;
+static uint i8k_fan_mult = I8K_FAN_MULT;
+static uint i8k_pwm_mult;
+static uint i8k_fan_max = I8K_FAN_HIGH;
+
+#define I8K_HWMON_HAVE_TEMP1 (1 << 0)
+#define I8K_HWMON_HAVE_TEMP2 (1 << 1)
+#define I8K_HWMON_HAVE_TEMP3 (1 << 2)
+#define I8K_HWMON_HAVE_TEMP4 (1 << 3)
+#define I8K_HWMON_HAVE_FAN1 (1 << 4)
+#define I8K_HWMON_HAVE_FAN2 (1 << 5)
+
+MODULE_AUTHOR("Massimo Dal Zotto (dz@debian.org)");
+MODULE_AUTHOR("Pali Rohár <pali.rohar@gmail.com>");
+MODULE_DESCRIPTION("Dell laptop SMM BIOS hwmon driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("i8k");
+
+static bool force;
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Force loading without checking for supported models");
+
+static bool ignore_dmi;
+module_param(ignore_dmi, bool, 0);
+MODULE_PARM_DESC(ignore_dmi, "Continue probing hardware even if DMI data does not match");
+
+#if IS_ENABLED(CONFIG_I8K)
+static bool restricted;
+module_param(restricted, bool, 0);
+MODULE_PARM_DESC(restricted, "Allow fan control if SYS_ADMIN capability set");
+
+static bool power_status;
+module_param(power_status, bool, 0600);
+MODULE_PARM_DESC(power_status, "Report power status in /proc/i8k");
+#endif
+
+static uint fan_mult;
+module_param(fan_mult, uint, 0);
+MODULE_PARM_DESC(fan_mult, "Factor to multiply fan speed with (default: autodetect)");
+
+static uint fan_max;
+module_param(fan_max, uint, 0);
+MODULE_PARM_DESC(fan_max, "Maximum configurable fan speed (default: autodetect)");
+
+struct smm_regs {
+ unsigned int eax;
+ unsigned int ebx __packed;
+ unsigned int ecx __packed;
+ unsigned int edx __packed;
+ unsigned int esi __packed;
+ unsigned int edi __packed;
+};
+
+static inline const char *i8k_get_dmi_data(int field)
+{
+ const char *dmi_data = dmi_get_system_info(field);
+
+ return dmi_data && *dmi_data ? dmi_data : "?";
+}
+
+/*
+ * Call the System Management Mode BIOS. Code provided by Jonathan Buzzard.
+ */
+static int i8k_smm(struct smm_regs *regs)
+{
+ int rc;
+ int eax = regs->eax;
+ cpumask_var_t old_mask;
+
+ /* SMM requires CPU 0 */
+ if (!alloc_cpumask_var(&old_mask, GFP_KERNEL))
+ return -ENOMEM;
+ cpumask_copy(old_mask, &current->cpus_allowed);
+ rc = set_cpus_allowed_ptr(current, cpumask_of(0));
+ if (rc)
+ goto out;
+ if (smp_processor_id() != 0) {
+ rc = -EBUSY;
+ goto out;
+ }
+
+#if defined(CONFIG_X86_64)
+ asm volatile("pushq %%rax\n\t"
+ "movl 0(%%rax),%%edx\n\t"
+ "pushq %%rdx\n\t"
+ "movl 4(%%rax),%%ebx\n\t"
+ "movl 8(%%rax),%%ecx\n\t"
+ "movl 12(%%rax),%%edx\n\t"
+ "movl 16(%%rax),%%esi\n\t"
+ "movl 20(%%rax),%%edi\n\t"
+ "popq %%rax\n\t"
+ "out %%al,$0xb2\n\t"
+ "out %%al,$0x84\n\t"
+ "xchgq %%rax,(%%rsp)\n\t"
+ "movl %%ebx,4(%%rax)\n\t"
+ "movl %%ecx,8(%%rax)\n\t"
+ "movl %%edx,12(%%rax)\n\t"
+ "movl %%esi,16(%%rax)\n\t"
+ "movl %%edi,20(%%rax)\n\t"
+ "popq %%rdx\n\t"
+ "movl %%edx,0(%%rax)\n\t"
+ "pushfq\n\t"
+ "popq %%rax\n\t"
+ "andl $1,%%eax\n"
+ : "=a"(rc)
+ : "a"(regs)
+ : "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
+#else
+ asm volatile("pushl %%eax\n\t"
+ "movl 0(%%eax),%%edx\n\t"
+ "push %%edx\n\t"
+ "movl 4(%%eax),%%ebx\n\t"
+ "movl 8(%%eax),%%ecx\n\t"
+ "movl 12(%%eax),%%edx\n\t"
+ "movl 16(%%eax),%%esi\n\t"
+ "movl 20(%%eax),%%edi\n\t"
+ "popl %%eax\n\t"
+ "out %%al,$0xb2\n\t"
+ "out %%al,$0x84\n\t"
+ "xchgl %%eax,(%%esp)\n\t"
+ "movl %%ebx,4(%%eax)\n\t"
+ "movl %%ecx,8(%%eax)\n\t"
+ "movl %%edx,12(%%eax)\n\t"
+ "movl %%esi,16(%%eax)\n\t"
+ "movl %%edi,20(%%eax)\n\t"
+ "popl %%edx\n\t"
+ "movl %%edx,0(%%eax)\n\t"
+ "lahf\n\t"
+ "shrl $8,%%eax\n\t"
+ "andl $1,%%eax\n"
+ : "=a"(rc)
+ : "a"(regs)
+ : "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
+#endif
+ if (rc != 0 || (regs->eax & 0xffff) == 0xffff || regs->eax == eax)
+ rc = -EINVAL;
+
+out:
+ set_cpus_allowed_ptr(current, old_mask);
+ free_cpumask_var(old_mask);
+ return rc;
+}
+
+/*
+ * Read the fan status.
+ */
+static int i8k_get_fan_status(int fan)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_GET_FAN, };
+
+ regs.ebx = fan & 0xff;
+ return i8k_smm(&regs) ? : regs.eax & 0xff;
+}
+
+/*
+ * Read the fan speed in RPM.
+ */
+static int i8k_get_fan_speed(int fan)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_GET_SPEED, };
+
+ regs.ebx = fan & 0xff;
+ return i8k_smm(&regs) ? : (regs.eax & 0xffff) * i8k_fan_mult;
+}
+
+/*
+ * Read the fan type.
+ */
+static int i8k_get_fan_type(int fan)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_GET_FAN_TYPE, };
+
+ regs.ebx = fan & 0xff;
+ return i8k_smm(&regs) ? : regs.eax & 0xff;
+}
+
+/*
+ * Read the fan nominal rpm for specific fan speed.
+ */
+static int i8k_get_fan_nominal_speed(int fan, int speed)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_GET_NOM_SPEED, };
+
+ regs.ebx = (fan & 0xff) | (speed << 8);
+ return i8k_smm(&regs) ? : (regs.eax & 0xffff) * i8k_fan_mult;
+}
+
+/*
+ * Set the fan speed (off, low, high). Returns the new fan status.
+ */
+static int i8k_set_fan(int fan, int speed)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_SET_FAN, };
+
+ speed = (speed < 0) ? 0 : ((speed > i8k_fan_max) ? i8k_fan_max : speed);
+ regs.ebx = (fan & 0xff) | (speed << 8);
+
+ return i8k_smm(&regs) ? : i8k_get_fan_status(fan);
+}
+
+static int i8k_get_temp_type(int sensor)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_GET_TEMP_TYPE, };
+
+ regs.ebx = sensor & 0xff;
+ return i8k_smm(&regs) ? : regs.eax & 0xff;
+}
+
+/*
+ * Read the cpu temperature.
+ */
+static int _i8k_get_temp(int sensor)
+{
+ struct smm_regs regs = {
+ .eax = I8K_SMM_GET_TEMP,
+ .ebx = sensor & 0xff,
+ };
+
+ return i8k_smm(&regs) ? : regs.eax & 0xff;
+}
+
+static int i8k_get_temp(int sensor)
+{
+ int temp = _i8k_get_temp(sensor);
+
+ /*
+ * Sometimes the temperature sensor returns 0x99, which is out of range.
+ * In this case we retry (once) before returning an error.
+ # 1003655137 00000058 00005a4b
+ # 1003655138 00000099 00003a80 <--- 0x99 = 153 degrees
+ # 1003655139 00000054 00005c52
+ */
+ if (temp == 0x99) {
+ msleep(100);
+ temp = _i8k_get_temp(sensor);
+ }
+ /*
+ * Return -ENODATA for all invalid temperatures.
+ *
+ * Known instances are the 0x99 value as seen above as well as
+ * 0xc1 (193), which may be returned when trying to read the GPU
+ * temperature if the system supports a GPU and it is currently
+ * turned off.
+ */
+ if (temp > I8K_MAX_TEMP)
+ return -ENODATA;
+
+ return temp;
+}
+
+static int i8k_get_dell_signature(int req_fn)
+{
+ struct smm_regs regs = { .eax = req_fn, };
+ int rc;
+
+ rc = i8k_smm(&regs);
+ if (rc < 0)
+ return rc;
+
+ return regs.eax == 1145651527 && regs.edx == 1145392204 ? 0 : -1;
+}
+
+#if IS_ENABLED(CONFIG_I8K)
+
+/*
+ * Read the Fn key status.
+ */
+static int i8k_get_fn_status(void)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_FN_STATUS, };
+ int rc;
+
+ rc = i8k_smm(&regs);
+ if (rc < 0)
+ return rc;
+
+ switch ((regs.eax >> I8K_FN_SHIFT) & I8K_FN_MASK) {
+ case I8K_FN_UP:
+ return I8K_VOL_UP;
+ case I8K_FN_DOWN:
+ return I8K_VOL_DOWN;
+ case I8K_FN_MUTE:
+ return I8K_VOL_MUTE;
+ default:
+ return 0;
+ }
+}
+
+/*
+ * Read the power status.
+ */
+static int i8k_get_power_status(void)
+{
+ struct smm_regs regs = { .eax = I8K_SMM_POWER_STATUS, };
+ int rc;
+
+ rc = i8k_smm(&regs);
+ if (rc < 0)
+ return rc;
+
+ return (regs.eax & 0xff) == I8K_POWER_AC ? I8K_AC : I8K_BATTERY;
+}
+
+/*
+ * Procfs interface
+ */
+
+static int
+i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
+{
+ int val = 0;
+ int speed;
+ unsigned char buff[16];
+ int __user *argp = (int __user *)arg;
+
+ if (!argp)
+ return -EINVAL;
+
+ switch (cmd) {
+ case I8K_BIOS_VERSION:
+ val = (bios_version[0] << 16) |
+ (bios_version[1] << 8) | bios_version[2];
+ break;
+
+ case I8K_MACHINE_ID:
+ memset(buff, 0, 16);
+ strlcpy(buff, i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
+ sizeof(buff));
+ break;
+
+ case I8K_FN_STATUS:
+ val = i8k_get_fn_status();
+ break;
+
+ case I8K_POWER_STATUS:
+ val = i8k_get_power_status();
+ break;
+
+ case I8K_GET_TEMP:
+ val = i8k_get_temp(0);
+ break;
+
+ case I8K_GET_SPEED:
+ if (copy_from_user(&val, argp, sizeof(int)))
+ return -EFAULT;
+
+ val = i8k_get_fan_speed(val);
+ break;
+
+ case I8K_GET_FAN:
+ if (copy_from_user(&val, argp, sizeof(int)))
+ return -EFAULT;
+
+ val = i8k_get_fan_status(val);
+ break;
+
+ case I8K_SET_FAN:
+ if (restricted && !capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (copy_from_user(&val, argp, sizeof(int)))
+ return -EFAULT;
+
+ if (copy_from_user(&speed, argp + 1, sizeof(int)))
+ return -EFAULT;
+
+ val = i8k_set_fan(val, speed);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ if (val < 0)
+ return val;
+
+ switch (cmd) {
+ case I8K_BIOS_VERSION:
+ if (copy_to_user(argp, &val, 4))
+ return -EFAULT;
+
+ break;
+ case I8K_MACHINE_ID:
+ if (copy_to_user(argp, buff, 16))
+ return -EFAULT;
+
+ break;
+ default:
+ if (copy_to_user(argp, &val, sizeof(int)))
+ return -EFAULT;
+
+ break;
+ }
+
+ return 0;
+}
+
+static long i8k_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
+{
+ long ret;
+
+ mutex_lock(&i8k_mutex);
+ ret = i8k_ioctl_unlocked(fp, cmd, arg);
+ mutex_unlock(&i8k_mutex);
+
+ return ret;
+}
+
+/*
+ * Print the information for /proc/i8k.
+ */
+static int i8k_proc_show(struct seq_file *seq, void *offset)
+{
+ int fn_key, cpu_temp, ac_power;
+ int left_fan, right_fan, left_speed, right_speed;
+
+ cpu_temp = i8k_get_temp(0); /* 11100 µs */
+ left_fan = i8k_get_fan_status(I8K_FAN_LEFT); /* 580 µs */
+ right_fan = i8k_get_fan_status(I8K_FAN_RIGHT); /* 580 µs */
+ left_speed = i8k_get_fan_speed(I8K_FAN_LEFT); /* 580 µs */
+ right_speed = i8k_get_fan_speed(I8K_FAN_RIGHT); /* 580 µs */
+ fn_key = i8k_get_fn_status(); /* 750 µs */
+ if (power_status)
+ ac_power = i8k_get_power_status(); /* 14700 µs */
+ else
+ ac_power = -1;
+
+ /*
+ * Info:
+ *
+ * 1) Format version (this will change if format changes)
+ * 2) BIOS version
+ * 3) BIOS machine ID
+ * 4) Cpu temperature
+ * 5) Left fan status
+ * 6) Right fan status
+ * 7) Left fan speed
+ * 8) Right fan speed
+ * 9) AC power
+ * 10) Fn Key status
+ */
+ seq_printf(seq, "%s %s %s %d %d %d %d %d %d %d\n",
+ I8K_PROC_FMT,
+ bios_version,
+ i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
+ cpu_temp,
+ left_fan, right_fan, left_speed, right_speed,
+ ac_power, fn_key);
+
+ return 0;
+}
+
+static int i8k_open_fs(struct inode *inode, struct file *file)
+{
+ return single_open(file, i8k_proc_show, NULL);
+}
+
+static const struct file_operations i8k_fops = {
+ .owner = THIS_MODULE,
+ .open = i8k_open_fs,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .unlocked_ioctl = i8k_ioctl,
+};
+
+static void __init i8k_init_procfs(void)
+{
+ /* Register the proc entry */
+ proc_create("i8k", 0, NULL, &i8k_fops);
+}
+
+static void __exit i8k_exit_procfs(void)
+{
+ remove_proc_entry("i8k", NULL);
+}
+
+#else
+
+static inline void __init i8k_init_procfs(void)
+{
+}
+
+static inline void __exit i8k_exit_procfs(void)
+{
+}
+
+#endif
+
+/*
+ * Hwmon interface
+ */
+
+static ssize_t i8k_hwmon_show_temp_label(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ static const char * const labels[] = {
+ "CPU",
+ "GPU",
+ "SODIMM",
+ "Other",
+ "Ambient",
+ "Other",
+ };
+ int index = to_sensor_dev_attr(devattr)->index;
+ int type;
+
+ type = i8k_get_temp_type(index);
+ if (type < 0)
+ return type;
+ if (type >= ARRAY_SIZE(labels))
+ type = ARRAY_SIZE(labels) - 1;
+ return sprintf(buf, "%s\n", labels[type]);
+}
+
+static ssize_t i8k_hwmon_show_temp(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ int temp;
+
+ temp = i8k_get_temp(index);
+ if (temp < 0)
+ return temp;
+ return sprintf(buf, "%d\n", temp * 1000);
+}
+
+static ssize_t i8k_hwmon_show_fan_label(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ static const char * const labels[] = {
+ "Processor Fan",
+ "Motherboard Fan",
+ "Video Fan",
+ "Power Supply Fan",
+ "Chipset Fan",
+ "Other Fan",
+ };
+ int index = to_sensor_dev_attr(devattr)->index;
+ bool dock = false;
+ int type;
+
+ type = i8k_get_fan_type(index);
+ if (type < 0)
+ return type;
+
+ if (type & 0x10) {
+ dock = true;
+ type &= 0x0F;
+ }
+
+ if (type >= ARRAY_SIZE(labels))
+ type = (ARRAY_SIZE(labels) - 1);
+
+ return sprintf(buf, "%s%s\n", (dock ? "Docking " : ""), labels[type]);
+}
+
+static ssize_t i8k_hwmon_show_fan(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ int fan_speed;
+
+ fan_speed = i8k_get_fan_speed(index);
+ if (fan_speed < 0)
+ return fan_speed;
+ return sprintf(buf, "%d\n", fan_speed);
+}
+
+static ssize_t i8k_hwmon_show_pwm(struct device *dev,
+ struct device_attribute *devattr,
+ char *buf)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ int status;
+
+ status = i8k_get_fan_status(index);
+ if (status < 0)
+ return -EIO;
+ return sprintf(buf, "%d\n", clamp_val(status * i8k_pwm_mult, 0, 255));
+}
+
+static ssize_t i8k_hwmon_set_pwm(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+ val = clamp_val(DIV_ROUND_CLOSEST(val, i8k_pwm_mult), 0, i8k_fan_max);
+
+ mutex_lock(&i8k_mutex);
+ err = i8k_set_fan(index, val);
+ mutex_unlock(&i8k_mutex);
+
+ return err < 0 ? -EIO : count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
+ 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
+ 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
+ 2);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
+ 3);
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, i8k_hwmon_show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan1_label, S_IRUGO, i8k_hwmon_show_fan_label, NULL,
+ 0);
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, i8k_hwmon_show_pwm,
+ i8k_hwmon_set_pwm, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, i8k_hwmon_show_fan, NULL,
+ 1);
+static SENSOR_DEVICE_ATTR(fan2_label, S_IRUGO, i8k_hwmon_show_fan_label, NULL,
+ 1);
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, i8k_hwmon_show_pwm,
+ i8k_hwmon_set_pwm, 1);
+
+static struct attribute *i8k_attrs[] = {
+ &sensor_dev_attr_temp1_input.dev_attr.attr, /* 0 */
+ &sensor_dev_attr_temp1_label.dev_attr.attr, /* 1 */
+ &sensor_dev_attr_temp2_input.dev_attr.attr, /* 2 */
+ &sensor_dev_attr_temp2_label.dev_attr.attr, /* 3 */
+ &sensor_dev_attr_temp3_input.dev_attr.attr, /* 4 */
+ &sensor_dev_attr_temp3_label.dev_attr.attr, /* 5 */
+ &sensor_dev_attr_temp4_input.dev_attr.attr, /* 6 */
+ &sensor_dev_attr_temp4_label.dev_attr.attr, /* 7 */
+ &sensor_dev_attr_fan1_input.dev_attr.attr, /* 8 */
+ &sensor_dev_attr_fan1_label.dev_attr.attr, /* 9 */
+ &sensor_dev_attr_pwm1.dev_attr.attr, /* 10 */
+ &sensor_dev_attr_fan2_input.dev_attr.attr, /* 11 */
+ &sensor_dev_attr_fan2_label.dev_attr.attr, /* 12 */
+ &sensor_dev_attr_pwm2.dev_attr.attr, /* 13 */
+ NULL
+};
+
+static umode_t i8k_is_visible(struct kobject *kobj, struct attribute *attr,
+ int index)
+{
+ if (index >= 0 && index <= 1 &&
+ !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP1))
+ return 0;
+ if (index >= 2 && index <= 3 &&
+ !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP2))
+ return 0;
+ if (index >= 4 && index <= 5 &&
+ !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP3))
+ return 0;
+ if (index >= 6 && index <= 7 &&
+ !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP4))
+ return 0;
+ if (index >= 8 && index <= 10 &&
+ !(i8k_hwmon_flags & I8K_HWMON_HAVE_FAN1))
+ return 0;
+ if (index >= 11 && index <= 13 &&
+ !(i8k_hwmon_flags & I8K_HWMON_HAVE_FAN2))
+ return 0;
+
+ return attr->mode;
+}
+
+static const struct attribute_group i8k_group = {
+ .attrs = i8k_attrs,
+ .is_visible = i8k_is_visible,
+};
+__ATTRIBUTE_GROUPS(i8k);
+
+static int __init i8k_init_hwmon(void)
+{
+ int err;
+
+ i8k_hwmon_flags = 0;
+
+ /* CPU temperature attributes, if temperature type is OK */
+ err = i8k_get_temp_type(0);
+ if (err >= 0)
+ i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP1;
+ /* check for additional temperature sensors */
+ err = i8k_get_temp_type(1);
+ if (err >= 0)
+ i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP2;
+ err = i8k_get_temp_type(2);
+ if (err >= 0)
+ i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP3;
+ err = i8k_get_temp_type(3);
+ if (err >= 0)
+ i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP4;
+
+ /* First fan attributes, if fan type is OK */
+ err = i8k_get_fan_type(0);
+ if (err >= 0)
+ i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN1;
+
+ /* Second fan attributes, if fan type is OK */
+ err = i8k_get_fan_type(1);
+ if (err >= 0)
+ i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN2;
+
+ i8k_hwmon_dev = hwmon_device_register_with_groups(NULL, "dell_smm",
+ NULL, i8k_groups);
+ if (IS_ERR(i8k_hwmon_dev)) {
+ err = PTR_ERR(i8k_hwmon_dev);
+ i8k_hwmon_dev = NULL;
+ pr_err("hwmon registration failed (%d)\n", err);
+ return err;
+ }
+ return 0;
+}
+
+struct i8k_config_data {
+ uint fan_mult;
+ uint fan_max;
+};
+
+enum i8k_configs {
+ DELL_LATITUDE_D520,
+ DELL_PRECISION_490,
+ DELL_STUDIO,
+ DELL_XPS,
+};
+
+static const struct i8k_config_data i8k_config_data[] = {
+ [DELL_LATITUDE_D520] = {
+ .fan_mult = 1,
+ .fan_max = I8K_FAN_TURBO,
+ },
+ [DELL_PRECISION_490] = {
+ .fan_mult = 1,
+ .fan_max = I8K_FAN_TURBO,
+ },
+ [DELL_STUDIO] = {
+ .fan_mult = 1,
+ .fan_max = I8K_FAN_HIGH,
+ },
+ [DELL_XPS] = {
+ .fan_mult = 1,
+ .fan_max = I8K_FAN_HIGH,
+ },
+};
+
+static struct dmi_system_id i8k_dmi_table[] __initdata = {
+ {
+ .ident = "Dell Inspiron",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron"),
+ },
+ },
+ {
+ .ident = "Dell Latitude",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude"),
+ },
+ },
+ {
+ .ident = "Dell Inspiron 2",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron"),
+ },
+ },
+ {
+ .ident = "Dell Latitude D520",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D520"),
+ },
+ .driver_data = (void *)&i8k_config_data[DELL_LATITUDE_D520],
+ },
+ {
+ .ident = "Dell Latitude 2",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude"),
+ },
+ },
+ { /* UK Inspiron 6400 */
+ .ident = "Dell Inspiron 3",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MM061"),
+ },
+ },
+ {
+ .ident = "Dell Inspiron 3",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MP061"),
+ },
+ },
+ {
+ .ident = "Dell Precision 490",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME,
+ "Precision WorkStation 490"),
+ },
+ .driver_data = (void *)&i8k_config_data[DELL_PRECISION_490],
+ },
+ {
+ .ident = "Dell Precision",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Precision"),
+ },
+ },
+ {
+ .ident = "Dell Vostro",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro"),
+ },
+ },
+ {
+ .ident = "Dell XPS421",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "XPS L421X"),
+ },
+ },
+ {
+ .ident = "Dell Studio",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Studio"),
+ },
+ .driver_data = (void *)&i8k_config_data[DELL_STUDIO],
+ },
+ {
+ .ident = "Dell XPS 13",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "XPS13"),
+ },
+ .driver_data = (void *)&i8k_config_data[DELL_XPS],
+ },
+ {
+ .ident = "Dell XPS M140",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MXC051"),
+ },
+ .driver_data = (void *)&i8k_config_data[DELL_XPS],
+ },
+ { }
+};
+
+MODULE_DEVICE_TABLE(dmi, i8k_dmi_table);
+
+static struct dmi_system_id i8k_blacklist_dmi_table[] __initdata = {
+ {
+ /*
+ * CPU fan speed going up and down on Dell Studio XPS 8000
+ * for unknown reasons.
+ */
+ .ident = "Dell Studio XPS 8000",
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Studio XPS 8000"),
+ },
+ },
+ {
+ /*
+ * CPU fan speed going up and down on Dell Studio XPS 8100
+ * for unknown reasons.
+ */
+ .ident = "Dell Studio XPS 8100",
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Studio XPS 8100"),
+ },
+ },
+ { }
+};
+
+/*
+ * Probe for the presence of a supported laptop.
+ */
+static int __init i8k_probe(void)
+{
+ const struct dmi_system_id *id;
+ int fan, ret;
+
+ /*
+ * Get DMI information
+ */
+ if (!dmi_check_system(i8k_dmi_table) ||
+ dmi_check_system(i8k_blacklist_dmi_table)) {
+ if (!ignore_dmi && !force)
+ return -ENODEV;
+
+ pr_info("not running on a supported Dell system.\n");
+ pr_info("vendor=%s, model=%s, version=%s\n",
+ i8k_get_dmi_data(DMI_SYS_VENDOR),
+ i8k_get_dmi_data(DMI_PRODUCT_NAME),
+ i8k_get_dmi_data(DMI_BIOS_VERSION));
+ }
+
+ strlcpy(bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
+ sizeof(bios_version));
+
+ /*
+ * Get SMM Dell signature
+ */
+ if (i8k_get_dell_signature(I8K_SMM_GET_DELL_SIG1) &&
+ i8k_get_dell_signature(I8K_SMM_GET_DELL_SIG2)) {
+ pr_err("unable to get SMM Dell signature\n");
+ if (!force)
+ return -ENODEV;
+ }
+
+ /*
+ * Set fan multiplier and maximal fan speed from dmi config
+ * Values specified in module parameters override values from dmi
+ */
+ id = dmi_first_match(i8k_dmi_table);
+ if (id && id->driver_data) {
+ const struct i8k_config_data *conf = id->driver_data;
+ if (!fan_mult && conf->fan_mult)
+ fan_mult = conf->fan_mult;
+ if (!fan_max && conf->fan_max)
+ fan_max = conf->fan_max;
+ }
+
+ i8k_fan_max = fan_max ? : I8K_FAN_HIGH; /* Must not be 0 */
+ i8k_pwm_mult = DIV_ROUND_UP(255, i8k_fan_max);
+
+ if (!fan_mult) {
+ /*
+ * Autodetect fan multiplier based on nominal rpm
+ * If fan reports rpm value too high then set multiplier to 1
+ */
+ for (fan = 0; fan < 2; ++fan) {
+ ret = i8k_get_fan_nominal_speed(fan, i8k_fan_max);
+ if (ret < 0)
+ continue;
+ if (ret > I8K_FAN_MAX_RPM)
+ i8k_fan_mult = 1;
+ break;
+ }
+ } else {
+ /* Fan multiplier was specified in module param or in dmi */
+ i8k_fan_mult = fan_mult;
+ }
+
+ return 0;
+}
+
+static int __init i8k_init(void)
+{
+ int err;
+
+ /* Are we running on an supported laptop? */
+ if (i8k_probe())
+ return -ENODEV;
+
+ err = i8k_init_hwmon();
+ if (err)
+ return err;
+
+ i8k_init_procfs();
+ return 0;
+}
+
+static void __exit i8k_exit(void)
+{
+ hwmon_device_unregister(i8k_hwmon_dev);
+ i8k_exit_procfs();
+}
+
+module_init(i8k_init);
+module_exit(i8k_exit);
diff --git a/kernel/drivers/hwmon/f71882fg.c b/kernel/drivers/hwmon/f71882fg.c
index 2e5c6f46e..cb28e4b4f 100644
--- a/kernel/drivers/hwmon/f71882fg.c
+++ b/kernel/drivers/hwmon/f71882fg.c
@@ -51,6 +51,7 @@
#define SIO_F71808A_ID 0x1001 /* Chipset ID */
#define SIO_F71858_ID 0x0507 /* Chipset ID */
#define SIO_F71862_ID 0x0601 /* Chipset ID */
+#define SIO_F71868_ID 0x1106 /* Chipset ID */
#define SIO_F71869_ID 0x0814 /* Chipset ID */
#define SIO_F71869A_ID 0x1007 /* Chipset ID */
#define SIO_F71882_ID 0x0541 /* Chipset ID */
@@ -58,7 +59,9 @@
#define SIO_F71889E_ID 0x0909 /* Chipset ID */
#define SIO_F71889A_ID 0x1005 /* Chipset ID */
#define SIO_F8000_ID 0x0581 /* Chipset ID */
+#define SIO_F81768D_ID 0x1210 /* Chipset ID */
#define SIO_F81865_ID 0x0704 /* Chipset ID */
+#define SIO_F81866_ID 0x1010 /* Chipset ID */
#define REGION_LENGTH 8
#define ADDR_REG_OFFSET 5
@@ -69,6 +72,10 @@
#define F71882FG_REG_IN(nr) (0x20 + (nr))
#define F71882FG_REG_IN1_HIGH 0x32 /* f7188x only */
+#define F81866_REG_IN_STATUS 0x16 /* F81866 only */
+#define F81866_REG_IN_BEEP 0x17 /* F81866 only */
+#define F81866_REG_IN1_HIGH 0x3a /* F81866 only */
+
#define F71882FG_REG_FAN(nr) (0xA0 + (16 * (nr)))
#define F71882FG_REG_FAN_TARGET(nr) (0xA2 + (16 * (nr)))
#define F71882FG_REG_FAN_FULL_SPEED(nr) (0xA4 + (16 * (nr)))
@@ -101,7 +108,7 @@
#define F71882FG_REG_START 0x01
-#define F71882FG_MAX_INS 9
+#define F71882FG_MAX_INS 11
#define FAN_MIN_DETECT 366 /* Lowest detectable fanspeed */
@@ -109,14 +116,16 @@ static unsigned short force_id;
module_param(force_id, ushort, 0);
MODULE_PARM_DESC(force_id, "Override the detected device ID");
-enum chips { f71808e, f71808a, f71858fg, f71862fg, f71869, f71869a, f71882fg,
- f71889fg, f71889ed, f71889a, f8000, f81865f };
+enum chips { f71808e, f71808a, f71858fg, f71862fg, f71868a, f71869, f71869a,
+ f71882fg, f71889fg, f71889ed, f71889a, f8000, f81768d, f81865f,
+ f81866a};
static const char *const f71882fg_names[] = {
"f71808e",
"f71808a",
"f71858fg",
"f71862fg",
+ "f71868a",
"f71869", /* Both f71869f and f71869e, reg. compatible and same id */
"f71869a",
"f71882fg",
@@ -124,22 +133,27 @@ static const char *const f71882fg_names[] = {
"f71889ed",
"f71889a",
"f8000",
+ "f81768d",
"f81865f",
+ "f81866a",
};
static const char f71882fg_has_in[][F71882FG_MAX_INS] = {
- [f71808e] = { 1, 1, 1, 1, 1, 1, 0, 1, 1 },
- [f71808a] = { 1, 1, 1, 1, 0, 0, 0, 1, 1 },
- [f71858fg] = { 1, 1, 1, 0, 0, 0, 0, 0, 0 },
- [f71862fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
- [f71869] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
- [f71869a] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
- [f71882fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
- [f71889fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
- [f71889ed] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
- [f71889a] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 },
- [f8000] = { 1, 1, 1, 0, 0, 0, 0, 0, 0 },
- [f81865f] = { 1, 1, 1, 1, 1, 1, 1, 0, 0 },
+ [f71808e] = { 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0 },
+ [f71808a] = { 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0 },
+ [f71858fg] = { 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 },
+ [f71862fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
+ [f71868a] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
+ [f71869] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
+ [f71869a] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
+ [f71882fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
+ [f71889fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
+ [f71889ed] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
+ [f71889a] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
+ [f8000] = { 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 },
+ [f81768d] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ [f81865f] = { 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0 },
+ [f81866a] = { 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
};
static const char f71882fg_has_in1_alarm[] = {
@@ -147,6 +161,7 @@ static const char f71882fg_has_in1_alarm[] = {
[f71808a] = 0,
[f71858fg] = 0,
[f71862fg] = 0,
+ [f71868a] = 0,
[f71869] = 0,
[f71869a] = 0,
[f71882fg] = 1,
@@ -154,7 +169,9 @@ static const char f71882fg_has_in1_alarm[] = {
[f71889ed] = 1,
[f71889a] = 1,
[f8000] = 0,
+ [f81768d] = 1,
[f81865f] = 1,
+ [f81866a] = 1,
};
static const char f71882fg_fan_has_beep[] = {
@@ -162,6 +179,7 @@ static const char f71882fg_fan_has_beep[] = {
[f71808a] = 0,
[f71858fg] = 0,
[f71862fg] = 1,
+ [f71868a] = 1,
[f71869] = 1,
[f71869a] = 1,
[f71882fg] = 1,
@@ -169,7 +187,9 @@ static const char f71882fg_fan_has_beep[] = {
[f71889ed] = 1,
[f71889a] = 1,
[f8000] = 0,
+ [f81768d] = 1,
[f81865f] = 1,
+ [f81866a] = 1,
};
static const char f71882fg_nr_fans[] = {
@@ -177,6 +197,7 @@ static const char f71882fg_nr_fans[] = {
[f71808a] = 2, /* +1 fan which is monitor + simple pwm only */
[f71858fg] = 3,
[f71862fg] = 3,
+ [f71868a] = 3,
[f71869] = 3,
[f71869a] = 3,
[f71882fg] = 4,
@@ -184,7 +205,9 @@ static const char f71882fg_nr_fans[] = {
[f71889ed] = 3,
[f71889a] = 3,
[f8000] = 3, /* +1 fan which is monitor only */
+ [f81768d] = 3,
[f81865f] = 2,
+ [f81866a] = 3,
};
static const char f71882fg_temp_has_beep[] = {
@@ -192,6 +215,7 @@ static const char f71882fg_temp_has_beep[] = {
[f71808a] = 1,
[f71858fg] = 0,
[f71862fg] = 1,
+ [f71868a] = 1,
[f71869] = 1,
[f71869a] = 1,
[f71882fg] = 1,
@@ -199,7 +223,9 @@ static const char f71882fg_temp_has_beep[] = {
[f71889ed] = 1,
[f71889a] = 1,
[f8000] = 0,
+ [f81768d] = 1,
[f81865f] = 1,
+ [f81866a] = 1,
};
static const char f71882fg_nr_temps[] = {
@@ -207,6 +233,7 @@ static const char f71882fg_nr_temps[] = {
[f71808a] = 2,
[f71858fg] = 3,
[f71862fg] = 3,
+ [f71868a] = 3,
[f71869] = 3,
[f71869a] = 3,
[f71882fg] = 3,
@@ -214,7 +241,9 @@ static const char f71882fg_nr_temps[] = {
[f71889ed] = 3,
[f71889a] = 3,
[f8000] = 3,
+ [f81768d] = 3,
[f81865f] = 2,
+ [f81866a] = 3,
};
static struct platform_device *f71882fg_pdev;
@@ -490,6 +519,23 @@ static struct sensor_device_attribute_2 fxxxx_temp_beep_attr[3][2] = { {
store_temp_beep, 0, 7),
} };
+static struct sensor_device_attribute_2 f81866_temp_beep_attr[3][2] = { {
+ SENSOR_ATTR_2(temp1_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
+ store_temp_beep, 0, 0),
+ SENSOR_ATTR_2(temp1_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
+ store_temp_beep, 0, 4),
+}, {
+ SENSOR_ATTR_2(temp2_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
+ store_temp_beep, 0, 1),
+ SENSOR_ATTR_2(temp2_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
+ store_temp_beep, 0, 5),
+}, {
+ SENSOR_ATTR_2(temp3_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
+ store_temp_beep, 0, 2),
+ SENSOR_ATTR_2(temp3_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
+ store_temp_beep, 0, 6),
+} };
+
/*
* Temp attr for the f8000
* Note on the f8000 temp_ovt (crit) is used as max, and temp_high (max)
@@ -531,6 +577,8 @@ static struct sensor_device_attribute_2 fxxxx_in_attr[] = {
SENSOR_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 0, 6),
SENSOR_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 0, 7),
SENSOR_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 0, 8),
+ SENSOR_ATTR_2(in9_input, S_IRUGO, show_in, NULL, 0, 9),
+ SENSOR_ATTR_2(in10_input, S_IRUGO, show_in, NULL, 0, 10),
};
/* For models with in1 alarm capability */
@@ -1170,10 +1218,21 @@ static struct f71882fg_data *f71882fg_update_device(struct device *dev)
if (time_after(jiffies, data->last_limits + 60 * HZ) ||
!data->valid) {
if (f71882fg_has_in1_alarm[data->type]) {
- data->in1_max =
- f71882fg_read8(data, F71882FG_REG_IN1_HIGH);
- data->in_beep =
- f71882fg_read8(data, F71882FG_REG_IN_BEEP);
+ if (data->type == f81866a) {
+ data->in1_max =
+ f71882fg_read8(data,
+ F81866_REG_IN1_HIGH);
+ data->in_beep =
+ f71882fg_read8(data,
+ F81866_REG_IN_BEEP);
+ } else {
+ data->in1_max =
+ f71882fg_read8(data,
+ F71882FG_REG_IN1_HIGH);
+ data->in_beep =
+ f71882fg_read8(data,
+ F71882FG_REG_IN_BEEP);
+ }
}
/* Get High & boundary temps*/
@@ -1297,9 +1356,16 @@ static struct f71882fg_data *f71882fg_update_device(struct device *dev)
data->fan[3] = f71882fg_read16(data,
F71882FG_REG_FAN(3));
- if (f71882fg_has_in1_alarm[data->type])
- data->in_status = f71882fg_read8(data,
+ if (f71882fg_has_in1_alarm[data->type]) {
+ if (data->type == f81866a)
+ data->in_status = f71882fg_read8(data,
+ F81866_REG_IN_STATUS);
+
+ else
+ data->in_status = f71882fg_read8(data,
F71882FG_REG_IN_STATUS);
+ }
+
for (nr = 0; nr < F71882FG_MAX_INS; nr++)
if (f71882fg_has_in[data->type][nr])
data->in[nr] = f71882fg_read8(data,
@@ -1440,7 +1506,10 @@ static ssize_t store_in_max(struct device *dev, struct device_attribute
val = clamp_val(val, 0, 255);
mutex_lock(&data->update_lock);
- f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val);
+ if (data->type == f81866a)
+ f71882fg_write8(data, F81866_REG_IN1_HIGH, val);
+ else
+ f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val);
data->in1_max = val;
mutex_unlock(&data->update_lock);
@@ -1471,13 +1540,20 @@ static ssize_t store_in_beep(struct device *dev, struct device_attribute
return err;
mutex_lock(&data->update_lock);
- data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP);
+ if (data->type == f81866a)
+ data->in_beep = f71882fg_read8(data, F81866_REG_IN_BEEP);
+ else
+ data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP);
+
if (val)
data->in_beep |= 1 << nr;
else
data->in_beep &= ~(1 << nr);
- f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep);
+ if (data->type == f81866a)
+ f71882fg_write8(data, F81866_REG_IN_BEEP, data->in_beep);
+ else
+ f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep);
mutex_unlock(&data->update_lock);
return count;
@@ -2270,6 +2346,7 @@ static int f71882fg_probe(struct platform_device *pdev)
int nr_fans = f71882fg_nr_fans[sio_data->type];
int nr_temps = f71882fg_nr_temps[sio_data->type];
int err, i;
+ int size;
u8 start_reg, reg;
data = devm_kzalloc(&pdev->dev, sizeof(struct f71882fg_data),
@@ -2280,7 +2357,8 @@ static int f71882fg_probe(struct platform_device *pdev)
data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
data->type = sio_data->type;
data->temp_start =
- (data->type == f71858fg || data->type == f8000) ? 0 : 1;
+ (data->type == f71858fg || data->type == f8000 ||
+ data->type == f81866a) ? 0 : 1;
mutex_init(&data->update_lock);
platform_set_drvdata(pdev, data);
@@ -2322,6 +2400,11 @@ static int f71882fg_probe(struct platform_device *pdev)
f8000_temp_attr,
ARRAY_SIZE(f8000_temp_attr));
break;
+ case f81866a:
+ err = f71882fg_create_sysfs_files(pdev,
+ f71858fg_temp_attr,
+ ARRAY_SIZE(f71858fg_temp_attr));
+ break;
default:
err = f71882fg_create_sysfs_files(pdev,
&fxxxx_temp_attr[0][0],
@@ -2331,10 +2414,18 @@ static int f71882fg_probe(struct platform_device *pdev)
goto exit_unregister_sysfs;
if (f71882fg_temp_has_beep[data->type]) {
- err = f71882fg_create_sysfs_files(pdev,
- &fxxxx_temp_beep_attr[0][0],
- ARRAY_SIZE(fxxxx_temp_beep_attr[0])
- * nr_temps);
+ if (data->type == f81866a) {
+ size = ARRAY_SIZE(f81866_temp_beep_attr[0]);
+ err = f71882fg_create_sysfs_files(pdev,
+ &f81866_temp_beep_attr[0][0],
+ size * nr_temps);
+
+ } else {
+ size = ARRAY_SIZE(fxxxx_temp_beep_attr[0]);
+ err = f71882fg_create_sysfs_files(pdev,
+ &fxxxx_temp_beep_attr[0][0],
+ size * nr_temps);
+ }
if (err)
goto exit_unregister_sysfs;
}
@@ -2451,15 +2542,27 @@ static int f71882fg_remove(struct platform_device *pdev)
f8000_temp_attr,
ARRAY_SIZE(f8000_temp_attr));
break;
+ case f81866a:
+ f71882fg_remove_sysfs_files(pdev,
+ f71858fg_temp_attr,
+ ARRAY_SIZE(f71858fg_temp_attr));
+ break;
default:
f71882fg_remove_sysfs_files(pdev,
&fxxxx_temp_attr[0][0],
ARRAY_SIZE(fxxxx_temp_attr[0]) * nr_temps);
}
if (f71882fg_temp_has_beep[data->type]) {
- f71882fg_remove_sysfs_files(pdev,
- &fxxxx_temp_beep_attr[0][0],
- ARRAY_SIZE(fxxxx_temp_beep_attr[0]) * nr_temps);
+ if (data->type == f81866a)
+ f71882fg_remove_sysfs_files(pdev,
+ &f81866_temp_beep_attr[0][0],
+ ARRAY_SIZE(f81866_temp_beep_attr[0])
+ * nr_temps);
+ else
+ f71882fg_remove_sysfs_files(pdev,
+ &fxxxx_temp_beep_attr[0][0],
+ ARRAY_SIZE(fxxxx_temp_beep_attr[0])
+ * nr_temps);
}
for (i = 0; i < F71882FG_MAX_INS; i++) {
@@ -2551,6 +2654,9 @@ static int __init f71882fg_find(int sioaddr, struct f71882fg_sio_data *sio_data)
case SIO_F71862_ID:
sio_data->type = f71862fg;
break;
+ case SIO_F71868_ID:
+ sio_data->type = f71868a;
+ break;
case SIO_F71869_ID:
sio_data->type = f71869;
break;
@@ -2572,9 +2678,15 @@ static int __init f71882fg_find(int sioaddr, struct f71882fg_sio_data *sio_data)
case SIO_F8000_ID:
sio_data->type = f8000;
break;
+ case SIO_F81768D_ID:
+ sio_data->type = f81768d;
+ break;
case SIO_F81865_ID:
sio_data->type = f81865f;
break;
+ case SIO_F81866_ID:
+ sio_data->type = f81866a;
+ break;
default:
pr_info("Unsupported Fintek device: %04x\n",
(unsigned int)devid);
diff --git a/kernel/drivers/hwmon/fam15h_power.c b/kernel/drivers/hwmon/fam15h_power.c
index 3057dfc7e..5f7067d7b 100644
--- a/kernel/drivers/hwmon/fam15h_power.c
+++ b/kernel/drivers/hwmon/fam15h_power.c
@@ -26,6 +26,7 @@
#include <linux/pci.h>
#include <linux/bitops.h>
#include <asm/processor.h>
+#include <asm/msr.h>
MODULE_DESCRIPTION("AMD Family 15h CPU processor power monitor");
MODULE_AUTHOR("Andreas Herrmann <herrmann.der.user@googlemail.com>");
@@ -41,11 +42,21 @@ MODULE_LICENSE("GPL");
#define REG_TDP_RUNNING_AVERAGE 0xe0
#define REG_TDP_LIMIT3 0xe8
+#define FAM15H_MIN_NUM_ATTRS 2
+#define FAM15H_NUM_GROUPS 2
+
+#define MSR_F15H_CU_MAX_PWR_ACCUMULATOR 0xc001007b
+
struct fam15h_power_data {
struct pci_dev *pdev;
unsigned int tdp_to_watts;
unsigned int base_tdp;
unsigned int processor_pwr_watts;
+ unsigned int cpu_pwr_sample_ratio;
+ const struct attribute_group *groups[FAM15H_NUM_GROUPS];
+ struct attribute_group group;
+ /* maximum accumulated power of a compute unit */
+ u64 max_cu_acc_power;
};
static ssize_t show_power(struct device *dev,
@@ -59,8 +70,19 @@ static ssize_t show_power(struct device *dev,
pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5),
REG_TDP_RUNNING_AVERAGE, &val);
- running_avg_capture = (val >> 4) & 0x3fffff;
- running_avg_capture = sign_extend32(running_avg_capture, 21);
+
+ /*
+ * On Carrizo and later platforms, TdpRunAvgAccCap bit field
+ * is extended to 4:31 from 4:25.
+ */
+ if (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model >= 0x60) {
+ running_avg_capture = val >> 4;
+ running_avg_capture = sign_extend32(running_avg_capture, 27);
+ } else {
+ running_avg_capture = (val >> 4) & 0x3fffff;
+ running_avg_capture = sign_extend32(running_avg_capture, 21);
+ }
+
running_avg_range = (val & 0xf) + 1;
pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5),
@@ -93,31 +115,38 @@ static ssize_t show_power_crit(struct device *dev,
}
static DEVICE_ATTR(power1_crit, S_IRUGO, show_power_crit, NULL);
-static umode_t fam15h_power_is_visible(struct kobject *kobj,
- struct attribute *attr,
- int index)
+static int fam15h_power_init_attrs(struct pci_dev *pdev,
+ struct fam15h_power_data *data)
{
- /* power1_input is only reported for Fam15h, Models 00h-0fh */
- if (attr == &dev_attr_power1_input.attr &&
- (boot_cpu_data.x86 != 0x15 || boot_cpu_data.x86_model > 0xf))
- return 0;
+ int n = FAM15H_MIN_NUM_ATTRS;
+ struct attribute **fam15h_power_attrs;
+ struct cpuinfo_x86 *c = &boot_cpu_data;
- return attr->mode;
-}
+ if (c->x86 == 0x15 &&
+ (c->x86_model <= 0xf ||
+ (c->x86_model >= 0x60 && c->x86_model <= 0x6f)))
+ n += 1;
-static struct attribute *fam15h_power_attrs[] = {
- &dev_attr_power1_input.attr,
- &dev_attr_power1_crit.attr,
- NULL
-};
+ fam15h_power_attrs = devm_kcalloc(&pdev->dev, n,
+ sizeof(*fam15h_power_attrs),
+ GFP_KERNEL);
-static const struct attribute_group fam15h_power_group = {
- .attrs = fam15h_power_attrs,
- .is_visible = fam15h_power_is_visible,
-};
-__ATTRIBUTE_GROUPS(fam15h_power);
+ if (!fam15h_power_attrs)
+ return -ENOMEM;
+
+ n = 0;
+ fam15h_power_attrs[n++] = &dev_attr_power1_crit.attr;
+ if (c->x86 == 0x15 &&
+ (c->x86_model <= 0xf ||
+ (c->x86_model >= 0x60 && c->x86_model <= 0x6f)))
+ fam15h_power_attrs[n++] = &dev_attr_power1_input.attr;
+
+ data->group.attrs = fam15h_power_attrs;
+
+ return 0;
+}
-static bool fam15h_power_is_internal_node0(struct pci_dev *f4)
+static bool should_load_on_this_node(struct pci_dev *f4)
{
u32 val;
@@ -174,11 +203,12 @@ static int fam15h_power_resume(struct pci_dev *pdev)
#define fam15h_power_resume NULL
#endif
-static void fam15h_power_init_data(struct pci_dev *f4,
- struct fam15h_power_data *data)
+static int fam15h_power_init_data(struct pci_dev *f4,
+ struct fam15h_power_data *data)
{
- u32 val;
+ u32 val, eax, ebx, ecx, edx;
u64 tmp;
+ int ret;
pci_read_config_dword(f4, REG_PROCESSOR_TDP, &val);
data->base_tdp = val >> 16;
@@ -198,14 +228,41 @@ static void fam15h_power_init_data(struct pci_dev *f4,
/* convert to microWatt */
data->processor_pwr_watts = (tmp * 15625) >> 10;
+
+ ret = fam15h_power_init_attrs(f4, data);
+ if (ret)
+ return ret;
+
+ cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
+
+ /* CPUID Fn8000_0007:EDX[12] indicates to support accumulated power */
+ if (!(edx & BIT(12)))
+ return 0;
+
+ /*
+ * determine the ratio of the compute unit power accumulator
+ * sample period to the PTSC counter period by executing CPUID
+ * Fn8000_0007:ECX
+ */
+ data->cpu_pwr_sample_ratio = ecx;
+
+ if (rdmsrl_safe(MSR_F15H_CU_MAX_PWR_ACCUMULATOR, &tmp)) {
+ pr_err("Failed to read max compute unit power accumulator MSR\n");
+ return -ENODEV;
+ }
+
+ data->max_cu_acc_power = tmp;
+
+ return 0;
}
static int fam15h_power_probe(struct pci_dev *pdev,
- const struct pci_device_id *id)
+ const struct pci_device_id *id)
{
struct fam15h_power_data *data;
struct device *dev = &pdev->dev;
struct device *hwmon_dev;
+ int ret;
/*
* though we ignore every other northbridge, we still have to
@@ -214,25 +271,31 @@ static int fam15h_power_probe(struct pci_dev *pdev,
*/
tweak_runavg_range(pdev);
- if (!fam15h_power_is_internal_node0(pdev))
+ if (!should_load_on_this_node(pdev))
return -ENODEV;
data = devm_kzalloc(dev, sizeof(struct fam15h_power_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- fam15h_power_init_data(pdev, data);
+ ret = fam15h_power_init_data(pdev, data);
+ if (ret)
+ return ret;
+
data->pdev = pdev;
+ data->groups[0] = &data->group;
+
hwmon_dev = devm_hwmon_device_register_with_groups(dev, "fam15h_power",
data,
- fam15h_power_groups);
+ &data->groups[0]);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static const struct pci_device_id fam15h_power_id_table[] = {
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) },
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M30H_NB_F4) },
+ { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M60H_NB_F4) },
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_NB_F4) },
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F4) },
{}
diff --git a/kernel/drivers/hwmon/g762.c b/kernel/drivers/hwmon/g762.c
index 9b55e673b..b96a2a9e4 100644
--- a/kernel/drivers/hwmon/g762.c
+++ b/kernel/drivers/hwmon/g762.c
@@ -582,6 +582,7 @@ static const struct of_device_id g762_dt_match[] = {
{ .compatible = "gmt,g763" },
{ },
};
+MODULE_DEVICE_TABLE(of, g762_dt_match);
/*
* Grab clock (a required property), enable it, get (fixed) clock frequency
@@ -1112,7 +1113,6 @@ static int g762_remove(struct i2c_client *client)
static struct i2c_driver g762_driver = {
.driver = {
.name = DRVNAME,
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(g762_dt_match),
},
.probe = g762_probe,
diff --git a/kernel/drivers/hwmon/gpio-fan.c b/kernel/drivers/hwmon/gpio-fan.c
index a3dae6d00..685568b12 100644
--- a/kernel/drivers/hwmon/gpio-fan.c
+++ b/kernel/drivers/hwmon/gpio-fan.c
@@ -406,16 +406,11 @@ static int gpio_fan_get_cur_state(struct thermal_cooling_device *cdev,
unsigned long *state)
{
struct gpio_fan_data *fan_data = cdev->devdata;
- int r;
if (!fan_data)
return -EINVAL;
- r = get_fan_speed_index(fan_data);
- if (r < 0)
- return r;
-
- *state = r;
+ *state = fan_data->speed_index;
return 0;
}
@@ -539,6 +534,7 @@ static const struct of_device_id of_gpio_fan_match[] = {
{ .compatible = "gpio-fan", },
{},
};
+MODULE_DEVICE_TABLE(of, of_gpio_fan_match);
#endif /* CONFIG_OF_GPIO */
static int gpio_fan_probe(struct platform_device *pdev)
diff --git a/kernel/drivers/hwmon/ibmpowernv.c b/kernel/drivers/hwmon/ibmpowernv.c
index 4255514b2..55b5a8ff1 100644
--- a/kernel/drivers/hwmon/ibmpowernv.c
+++ b/kernel/drivers/hwmon/ibmpowernv.c
@@ -474,11 +474,18 @@ static const struct platform_device_id opal_sensor_driver_ids[] = {
};
MODULE_DEVICE_TABLE(platform, opal_sensor_driver_ids);
+static const struct of_device_id opal_sensor_match[] = {
+ { .compatible = "ibm,opal-sensor" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, opal_sensor_match);
+
static struct platform_driver ibmpowernv_driver = {
.probe = ibmpowernv_probe,
.id_table = opal_sensor_driver_ids,
.driver = {
.name = DRVNAME,
+ .of_match_table = opal_sensor_match,
},
};
diff --git a/kernel/drivers/hwmon/ina2xx.c b/kernel/drivers/hwmon/ina2xx.c
index 4d2815079..b24f1d304 100644
--- a/kernel/drivers/hwmon/ina2xx.c
+++ b/kernel/drivers/hwmon/ina2xx.c
@@ -37,6 +37,7 @@
#include <linux/of.h>
#include <linux/delay.h>
#include <linux/util_macros.h>
+#include <linux/regmap.h>
#include <linux/platform_data/ina2xx.h>
@@ -84,6 +85,11 @@
*/
#define INA226_TOTAL_CONV_TIME_DEFAULT 2200
+static struct regmap_config ina2xx_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 16,
+};
+
enum ina2xx_ids { ina219, ina226 };
struct ina2xx_config {
@@ -97,20 +103,13 @@ struct ina2xx_config {
};
struct ina2xx_data {
- struct i2c_client *client;
const struct ina2xx_config *config;
long rshunt;
- u16 curr_config;
-
- struct mutex update_lock;
- bool valid;
- unsigned long last_updated;
- int update_interval; /* in jiffies */
+ struct mutex config_lock;
+ struct regmap *regmap;
- int kind;
const struct attribute_group *groups[INA2XX_MAX_ATTRIBUTE_GROUPS];
- u16 regs[INA2XX_MAX_REGISTERS];
};
static const struct ina2xx_config ina2xx_config[] = {
@@ -153,7 +152,11 @@ static int ina226_reg_to_interval(u16 config)
return DIV_ROUND_CLOSEST(avg * INA226_TOTAL_CONV_TIME_DEFAULT, 1000);
}
-static u16 ina226_interval_to_reg(int interval, u16 config)
+/*
+ * Return the new, shifted AVG field value of CONFIG register,
+ * to use with regmap_update_bits
+ */
+static u16 ina226_interval_to_reg(int interval)
{
int avg, avg_bits;
@@ -162,15 +165,7 @@ static u16 ina226_interval_to_reg(int interval, u16 config)
avg_bits = find_closest(avg, ina226_avg_tab,
ARRAY_SIZE(ina226_avg_tab));
- return (config & ~INA226_AVG_RD_MASK) | INA226_SHIFT_AVG(avg_bits);
-}
-
-static void ina226_set_update_interval(struct ina2xx_data *data)
-{
- int ms;
-
- ms = ina226_reg_to_interval(data->curr_config);
- data->update_interval = msecs_to_jiffies(ms);
+ return INA226_SHIFT_AVG(avg_bits);
}
static int ina2xx_calibrate(struct ina2xx_data *data)
@@ -178,8 +173,7 @@ static int ina2xx_calibrate(struct ina2xx_data *data)
u16 val = DIV_ROUND_CLOSEST(data->config->calibration_factor,
data->rshunt);
- return i2c_smbus_write_word_swapped(data->client,
- INA2XX_CALIBRATION, val);
+ return regmap_write(data->regmap, INA2XX_CALIBRATION, val);
}
/*
@@ -187,12 +181,8 @@ static int ina2xx_calibrate(struct ina2xx_data *data)
*/
static int ina2xx_init(struct ina2xx_data *data)
{
- struct i2c_client *client = data->client;
- int ret;
-
- /* device configuration */
- ret = i2c_smbus_write_word_swapped(client, INA2XX_CONFIG,
- data->curr_config);
+ int ret = regmap_write(data->regmap, INA2XX_CONFIG,
+ data->config->config_default);
if (ret < 0)
return ret;
@@ -203,47 +193,52 @@ static int ina2xx_init(struct ina2xx_data *data)
return ina2xx_calibrate(data);
}
-static int ina2xx_do_update(struct device *dev)
+static int ina2xx_read_reg(struct device *dev, int reg, unsigned int *regval)
{
struct ina2xx_data *data = dev_get_drvdata(dev);
- struct i2c_client *client = data->client;
- int i, rv, retry;
+ int ret, retry;
- dev_dbg(&client->dev, "Starting ina2xx update\n");
+ dev_dbg(dev, "Starting register %d read\n", reg);
for (retry = 5; retry; retry--) {
- /* Read all registers */
- for (i = 0; i < data->config->registers; i++) {
- rv = i2c_smbus_read_word_swapped(client, i);
- if (rv < 0)
- return rv;
- data->regs[i] = rv;
- }
+
+ ret = regmap_read(data->regmap, reg, regval);
+ if (ret < 0)
+ return ret;
+
+ dev_dbg(dev, "read %d, val = 0x%04x\n", reg, *regval);
/*
* If the current value in the calibration register is 0, the
* power and current registers will also remain at 0. In case
* the chip has been reset let's check the calibration
* register and reinitialize if needed.
+ * We do that extra read of the calibration register if there
+ * is some hint of a chip reset.
*/
- if (data->regs[INA2XX_CALIBRATION] == 0) {
- dev_warn(dev, "chip not calibrated, reinitializing\n");
-
- rv = ina2xx_init(data);
- if (rv < 0)
- return rv;
-
- /*
- * Let's make sure the power and current registers
- * have been updated before trying again.
- */
- msleep(INA2XX_MAX_DELAY);
- continue;
+ if (*regval == 0) {
+ unsigned int cal;
+
+ ret = regmap_read(data->regmap, INA2XX_CALIBRATION,
+ &cal);
+ if (ret < 0)
+ return ret;
+
+ if (cal == 0) {
+ dev_warn(dev, "chip not calibrated, reinitializing\n");
+
+ ret = ina2xx_init(data);
+ if (ret < 0)
+ return ret;
+ /*
+ * Let's make sure the power and current
+ * registers have been updated before trying
+ * again.
+ */
+ msleep(INA2XX_MAX_DELAY);
+ continue;
+ }
}
-
- data->last_updated = jiffies;
- data->valid = 1;
-
return 0;
}
@@ -256,51 +251,31 @@ static int ina2xx_do_update(struct device *dev)
return -ENODEV;
}
-static struct ina2xx_data *ina2xx_update_device(struct device *dev)
-{
- struct ina2xx_data *data = dev_get_drvdata(dev);
- struct ina2xx_data *ret = data;
- unsigned long after;
- int rv;
-
- mutex_lock(&data->update_lock);
-
- after = data->last_updated + data->update_interval;
- if (time_after(jiffies, after) || !data->valid) {
- rv = ina2xx_do_update(dev);
- if (rv < 0)
- ret = ERR_PTR(rv);
- }
-
- mutex_unlock(&data->update_lock);
- return ret;
-}
-
-static int ina2xx_get_value(struct ina2xx_data *data, u8 reg)
+static int ina2xx_get_value(struct ina2xx_data *data, u8 reg,
+ unsigned int regval)
{
int val;
switch (reg) {
case INA2XX_SHUNT_VOLTAGE:
/* signed register */
- val = DIV_ROUND_CLOSEST((s16)data->regs[reg],
- data->config->shunt_div);
+ val = DIV_ROUND_CLOSEST((s16)regval, data->config->shunt_div);
break;
case INA2XX_BUS_VOLTAGE:
- val = (data->regs[reg] >> data->config->bus_voltage_shift)
+ val = (regval >> data->config->bus_voltage_shift)
* data->config->bus_voltage_lsb;
val = DIV_ROUND_CLOSEST(val, 1000);
break;
case INA2XX_POWER:
- val = data->regs[reg] * data->config->power_lsb;
+ val = regval * data->config->power_lsb;
break;
case INA2XX_CURRENT:
/* signed register, LSB=1mA (selected), in mA */
- val = (s16)data->regs[reg];
+ val = (s16)regval;
break;
case INA2XX_CALIBRATION:
val = DIV_ROUND_CLOSEST(data->config->calibration_factor,
- data->regs[reg]);
+ regval);
break;
default:
/* programmer goofed */
@@ -316,25 +291,25 @@ static ssize_t ina2xx_show_value(struct device *dev,
struct device_attribute *da, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
- struct ina2xx_data *data = ina2xx_update_device(dev);
+ struct ina2xx_data *data = dev_get_drvdata(dev);
+ unsigned int regval;
+
+ int err = ina2xx_read_reg(dev, attr->index, &regval);
- if (IS_ERR(data))
- return PTR_ERR(data);
+ if (err < 0)
+ return err;
return snprintf(buf, PAGE_SIZE, "%d\n",
- ina2xx_get_value(data, attr->index));
+ ina2xx_get_value(data, attr->index, regval));
}
static ssize_t ina2xx_set_shunt(struct device *dev,
struct device_attribute *da,
const char *buf, size_t count)
{
- struct ina2xx_data *data = ina2xx_update_device(dev);
unsigned long val;
int status;
-
- if (IS_ERR(data))
- return PTR_ERR(data);
+ struct ina2xx_data *data = dev_get_drvdata(dev);
status = kstrtoul(buf, 10, &val);
if (status < 0)
@@ -345,10 +320,10 @@ static ssize_t ina2xx_set_shunt(struct device *dev,
val > data->config->calibration_factor)
return -EINVAL;
- mutex_lock(&data->update_lock);
+ mutex_lock(&data->config_lock);
data->rshunt = val;
status = ina2xx_calibrate(data);
- mutex_unlock(&data->update_lock);
+ mutex_unlock(&data->config_lock);
if (status < 0)
return status;
@@ -370,17 +345,9 @@ static ssize_t ina226_set_interval(struct device *dev,
if (val > INT_MAX || val == 0)
return -EINVAL;
- mutex_lock(&data->update_lock);
- data->curr_config = ina226_interval_to_reg(val,
- data->regs[INA2XX_CONFIG]);
- status = i2c_smbus_write_word_swapped(data->client,
- INA2XX_CONFIG,
- data->curr_config);
-
- ina226_set_update_interval(data);
- /* Make sure the next access re-reads all registers. */
- data->valid = 0;
- mutex_unlock(&data->update_lock);
+ status = regmap_update_bits(data->regmap, INA2XX_CONFIG,
+ INA226_AVG_RD_MASK,
+ ina226_interval_to_reg(val));
if (status < 0)
return status;
@@ -390,18 +357,15 @@ static ssize_t ina226_set_interval(struct device *dev,
static ssize_t ina226_show_interval(struct device *dev,
struct device_attribute *da, char *buf)
{
- struct ina2xx_data *data = ina2xx_update_device(dev);
+ struct ina2xx_data *data = dev_get_drvdata(dev);
+ int status;
+ unsigned int regval;
- if (IS_ERR(data))
- return PTR_ERR(data);
+ status = regmap_read(data->regmap, INA2XX_CONFIG, &regval);
+ if (status)
+ return status;
- /*
- * We don't use data->update_interval here as we want to display
- * the actual interval used by the chip and jiffies_to_msecs()
- * doesn't seem to be accurate enough.
- */
- return snprintf(buf, PAGE_SIZE, "%d\n",
- ina226_reg_to_interval(data->regs[INA2XX_CONFIG]));
+ return snprintf(buf, PAGE_SIZE, "%d\n", ina226_reg_to_interval(regval));
}
/* shunt voltage */
@@ -455,60 +419,51 @@ static const struct attribute_group ina226_group = {
static int ina2xx_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- struct i2c_adapter *adapter = client->adapter;
- struct ina2xx_platform_data *pdata;
struct device *dev = &client->dev;
struct ina2xx_data *data;
struct device *hwmon_dev;
u32 val;
int ret, group = 0;
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
- return -ENODEV;
-
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- if (dev_get_platdata(dev)) {
- pdata = dev_get_platdata(dev);
- data->rshunt = pdata->shunt_uohms;
- } else if (!of_property_read_u32(dev->of_node,
- "shunt-resistor", &val)) {
- data->rshunt = val;
- } else {
- data->rshunt = INA2XX_RSHUNT_DEFAULT;
- }
-
/* set the device type */
- data->kind = id->driver_data;
- data->config = &ina2xx_config[data->kind];
- data->curr_config = data->config->config_default;
- data->client = client;
+ data->config = &ina2xx_config[id->driver_data];
- /*
- * Ina226 has a variable update_interval. For ina219 we
- * use a constant value.
- */
- if (data->kind == ina226)
- ina226_set_update_interval(data);
- else
- data->update_interval = HZ / INA2XX_CONVERSION_RATE;
+ if (of_property_read_u32(dev->of_node, "shunt-resistor", &val) < 0) {
+ struct ina2xx_platform_data *pdata = dev_get_platdata(dev);
+
+ if (pdata)
+ val = pdata->shunt_uohms;
+ else
+ val = INA2XX_RSHUNT_DEFAULT;
+ }
- if (data->rshunt <= 0 ||
- data->rshunt > data->config->calibration_factor)
+ if (val <= 0 || val > data->config->calibration_factor)
return -ENODEV;
+ data->rshunt = val;
+
+ ina2xx_regmap_config.max_register = data->config->registers;
+
+ data->regmap = devm_regmap_init_i2c(client, &ina2xx_regmap_config);
+ if (IS_ERR(data->regmap)) {
+ dev_err(dev, "failed to allocate register map\n");
+ return PTR_ERR(data->regmap);
+ }
+
ret = ina2xx_init(data);
if (ret < 0) {
dev_err(dev, "error configuring the device: %d\n", ret);
return -ENODEV;
}
- mutex_init(&data->update_lock);
+ mutex_init(&data->config_lock);
data->groups[group++] = &ina2xx_group;
- if (data->kind == ina226)
+ if (id->driver_data == ina226)
data->groups[group++] = &ina226_group;
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
diff --git a/kernel/drivers/hwmon/it87.c b/kernel/drivers/hwmon/it87.c
index d0ee556e8..1896e26df 100644
--- a/kernel/drivers/hwmon/it87.c
+++ b/kernel/drivers/hwmon/it87.c
@@ -21,6 +21,7 @@
* IT8721F Super I/O chip w/LPC interface
* IT8726F Super I/O chip w/LPC interface
* IT8728F Super I/O chip w/LPC interface
+ * IT8732F Super I/O chip w/LPC interface
* IT8758E Super I/O chip w/LPC interface
* IT8771E Super I/O chip w/LPC interface
* IT8772E Super I/O chip w/LPC interface
@@ -69,8 +70,9 @@
#define DRVNAME "it87"
-enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
- it8772, it8781, it8782, it8783, it8786, it8790, it8603, it8620 };
+enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8732,
+ it8771, it8772, it8781, it8782, it8783, it8786, it8790, it8603,
+ it8620 };
static unsigned short force_id;
module_param(force_id, ushort, 0);
@@ -148,6 +150,7 @@ static inline void superio_exit(void)
#define IT8721F_DEVID 0x8721
#define IT8726F_DEVID 0x8726
#define IT8728F_DEVID 0x8728
+#define IT8732F_DEVID 0x8732
#define IT8771E_DEVID 0x8771
#define IT8772E_DEVID 0x8772
#define IT8781F_DEVID 0x8781
@@ -265,6 +268,7 @@ struct it87_devices {
#define FEAT_VID (1 << 9) /* Set if chip supports VID */
#define FEAT_IN7_INTERNAL (1 << 10) /* Set if in7 is internal */
#define FEAT_SIX_FANS (1 << 11) /* Supports six fans */
+#define FEAT_10_9MV_ADC (1 << 12)
static const struct it87_devices it87_devices[] = {
[it87] = {
@@ -315,6 +319,15 @@ static const struct it87_devices it87_devices[] = {
| FEAT_IN7_INTERNAL,
.peci_mask = 0x07,
},
+ [it8732] = {
+ .name = "it8732",
+ .suffix = "F",
+ .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS
+ | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI
+ | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL,
+ .peci_mask = 0x07,
+ .old_peci_mask = 0x02, /* Actually reports PCH */
+ },
[it8771] = {
.name = "it8771",
.suffix = "E",
@@ -391,6 +404,7 @@ static const struct it87_devices it87_devices[] = {
#define has_16bit_fans(data) ((data)->features & FEAT_16BIT_FANS)
#define has_12mv_adc(data) ((data)->features & FEAT_12MV_ADC)
+#define has_10_9mv_adc(data) ((data)->features & FEAT_10_9MV_ADC)
#define has_newer_autopwm(data) ((data)->features & FEAT_NEWER_AUTOPWM)
#define has_old_autopwm(data) ((data)->features & FEAT_OLD_AUTOPWM)
#define has_temp_offset(data) ((data)->features & FEAT_TEMP_OFFSET)
@@ -475,7 +489,14 @@ struct it87_data {
static int adc_lsb(const struct it87_data *data, int nr)
{
- int lsb = has_12mv_adc(data) ? 12 : 16;
+ int lsb;
+
+ if (has_12mv_adc(data))
+ lsb = 120;
+ else if (has_10_9mv_adc(data))
+ lsb = 109;
+ else
+ lsb = 160;
if (data->in_scaled & (1 << nr))
lsb <<= 1;
return lsb;
@@ -483,13 +504,13 @@ static int adc_lsb(const struct it87_data *data, int nr)
static u8 in_to_reg(const struct it87_data *data, int nr, long val)
{
- val = DIV_ROUND_CLOSEST(val, adc_lsb(data, nr));
+ val = DIV_ROUND_CLOSEST(val * 10, adc_lsb(data, nr));
return clamp_val(val, 0, 255);
}
static int in_from_reg(const struct it87_data *data, int nr, int val)
{
- return val * adc_lsb(data, nr);
+ return DIV_ROUND_CLOSEST(val * adc_lsb(data, nr), 10);
}
static inline u8 FAN_TO_REG(long rpm, int div)
@@ -1515,9 +1536,14 @@ static ssize_t show_label(struct device *dev, struct device_attribute *attr,
};
struct it87_data *data = dev_get_drvdata(dev);
int nr = to_sensor_dev_attr(attr)->index;
+ const char *label;
- return sprintf(buf, "%s\n", has_12mv_adc(data) ? labels_it8721[nr]
- : labels[nr]);
+ if (has_12mv_adc(data) || has_10_9mv_adc(data))
+ label = labels_it8721[nr];
+ else
+ label = labels[nr];
+
+ return sprintf(buf, "%s\n", label);
}
static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0);
static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1);
@@ -1853,6 +1879,9 @@ static int __init it87_find(unsigned short *address,
case IT8728F_DEVID:
sio_data->type = it8728;
break;
+ case IT8732F_DEVID:
+ sio_data->type = it8732;
+ break;
case IT8771E_DEVID:
sio_data->type = it8771;
break;
diff --git a/kernel/drivers/hwmon/k10temp.c b/kernel/drivers/hwmon/k10temp.c
index 1e7bdcdcb..9cdfde651 100644
--- a/kernel/drivers/hwmon/k10temp.c
+++ b/kernel/drivers/hwmon/k10temp.c
@@ -60,7 +60,6 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
* Control]
*/
#define F15H_M60H_REPORTED_TEMP_CTRL_OFFSET 0xd8200ca4
-#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F3 0x1573
static void amd_nb_smu_index_read(struct pci_dev *pdev, unsigned int devfn,
int offset, u32 *val)
diff --git a/kernel/drivers/hwmon/lm70.c b/kernel/drivers/hwmon/lm70.c
index 97204dce1..583f883a4 100644
--- a/kernel/drivers/hwmon/lm70.c
+++ b/kernel/drivers/hwmon/lm70.c
@@ -37,6 +37,7 @@
#include <linux/mod_devicetable.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
+#include <linux/of_device.h>
#define DRVNAME "lm70"
@@ -130,11 +131,41 @@ ATTRIBUTE_GROUPS(lm70);
/*----------------------------------------------------------------------*/
+#ifdef CONFIG_OF
+static const struct of_device_id lm70_of_ids[] = {
+ {
+ .compatible = "ti,lm70",
+ .data = (void *) LM70_CHIP_LM70,
+ },
+ {
+ .compatible = "ti,tmp121",
+ .data = (void *) LM70_CHIP_TMP121,
+ },
+ {
+ .compatible = "ti,lm71",
+ .data = (void *) LM70_CHIP_LM71,
+ },
+ {
+ .compatible = "ti,lm74",
+ .data = (void *) LM70_CHIP_LM74,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, lm70_of_ids);
+#endif
+
static int lm70_probe(struct spi_device *spi)
{
- int chip = spi_get_device_id(spi)->driver_data;
+ const struct of_device_id *match;
struct device *hwmon_dev;
struct lm70 *p_lm70;
+ int chip;
+
+ match = of_match_device(lm70_of_ids, &spi->dev);
+ if (match)
+ chip = (int)(uintptr_t)match->data;
+ else
+ chip = spi_get_device_id(spi)->driver_data;
/* signaling is SPI_MODE_0 */
if (spi->mode & (SPI_CPOL | SPI_CPHA))
@@ -168,7 +199,7 @@ MODULE_DEVICE_TABLE(spi, lm70_ids);
static struct spi_driver lm70_driver = {
.driver = {
.name = "lm70",
- .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(lm70_of_ids),
},
.id_table = lm70_ids,
.probe = lm70_probe,
diff --git a/kernel/drivers/hwmon/lm75.c b/kernel/drivers/hwmon/lm75.c
index fe41d5ae7..0addc84ba 100644
--- a/kernel/drivers/hwmon/lm75.c
+++ b/kernel/drivers/hwmon/lm75.c
@@ -57,6 +57,7 @@ enum lm75_type { /* keep sorted in alphabetical order */
tmp175,
tmp275,
tmp75,
+ tmp75c,
};
/* Addresses scanned */
@@ -104,7 +105,7 @@ static inline long lm75_reg_to_mc(s16 temp, u8 resolution)
/* sysfs attributes for hwmon */
-static int lm75_read_temp(void *dev, long *temp)
+static int lm75_read_temp(void *dev, int *temp)
{
struct lm75_data *data = lm75_update_device(dev);
@@ -280,6 +281,11 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
data->resolution = 12;
data->sample_time = HZ / 2;
break;
+ case tmp75c:
+ clr_mask |= 1 << 5; /* not one-shot mode */
+ data->resolution = 12;
+ data->sample_time = HZ / 4;
+ break;
}
/* configure as specified */
@@ -343,6 +349,7 @@ static const struct i2c_device_id lm75_ids[] = {
{ "tmp175", tmp175, },
{ "tmp275", tmp275, },
{ "tmp75", tmp75, },
+ { "tmp75c", tmp75c, },
{ /* LIST END */ }
};
MODULE_DEVICE_TABLE(i2c, lm75_ids);
diff --git a/kernel/drivers/hwmon/max1111.c b/kernel/drivers/hwmon/max1111.c
index f67d71ee8..36544c4f6 100644
--- a/kernel/drivers/hwmon/max1111.c
+++ b/kernel/drivers/hwmon/max1111.c
@@ -277,7 +277,6 @@ MODULE_DEVICE_TABLE(spi, max1111_ids);
static struct spi_driver max1111_driver = {
.driver = {
.name = "max1111",
- .owner = THIS_MODULE,
},
.id_table = max1111_ids,
.probe = max1111_probe,
diff --git a/kernel/drivers/hwmon/max197.c b/kernel/drivers/hwmon/max197.c
index cb0dcfda9..076285695 100644
--- a/kernel/drivers/hwmon/max197.c
+++ b/kernel/drivers/hwmon/max197.c
@@ -324,7 +324,7 @@ static int max197_remove(struct platform_device *pdev)
return 0;
}
-static struct platform_device_id max197_device_ids[] = {
+static const struct platform_device_id max197_device_ids[] = {
{ "max197", max197 },
{ "max199", max199 },
{ }
diff --git a/kernel/drivers/hwmon/max31790.c b/kernel/drivers/hwmon/max31790.c
new file mode 100644
index 000000000..69c0ac80a
--- /dev/null
+++ b/kernel/drivers/hwmon/max31790.c
@@ -0,0 +1,603 @@
+/*
+ * max31790.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring.
+ *
+ * (C) 2015 by Il Han <corone.il.han@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/err.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+/* MAX31790 registers */
+#define MAX31790_REG_GLOBAL_CONFIG 0x00
+#define MAX31790_REG_FAN_CONFIG(ch) (0x02 + (ch))
+#define MAX31790_REG_FAN_DYNAMICS(ch) (0x08 + (ch))
+#define MAX31790_REG_FAN_FAULT_STATUS2 0x10
+#define MAX31790_REG_FAN_FAULT_STATUS1 0x11
+#define MAX31790_REG_TACH_COUNT(ch) (0x18 + (ch) * 2)
+#define MAX31790_REG_PWM_DUTY_CYCLE(ch) (0x30 + (ch) * 2)
+#define MAX31790_REG_PWMOUT(ch) (0x40 + (ch) * 2)
+#define MAX31790_REG_TARGET_COUNT(ch) (0x50 + (ch) * 2)
+
+/* Fan Config register bits */
+#define MAX31790_FAN_CFG_RPM_MODE 0x80
+#define MAX31790_FAN_CFG_TACH_INPUT_EN 0x08
+#define MAX31790_FAN_CFG_TACH_INPUT 0x01
+
+/* Fan Dynamics register bits */
+#define MAX31790_FAN_DYN_SR_SHIFT 5
+#define MAX31790_FAN_DYN_SR_MASK 0xE0
+#define SR_FROM_REG(reg) (((reg) & MAX31790_FAN_DYN_SR_MASK) \
+ >> MAX31790_FAN_DYN_SR_SHIFT)
+
+#define FAN_RPM_MIN 120
+#define FAN_RPM_MAX 7864320
+
+#define RPM_FROM_REG(reg, sr) (((reg) >> 4) ? \
+ ((60 * (sr) * 8192) / ((reg) >> 4)) : \
+ FAN_RPM_MAX)
+#define RPM_TO_REG(rpm, sr) ((60 * (sr) * 8192) / ((rpm) * 2))
+
+#define NR_CHANNEL 6
+
+/*
+ * Client data (each client gets its own)
+ */
+struct max31790_data {
+ struct i2c_client *client;
+ struct mutex update_lock;
+ bool valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+
+ /* register values */
+ u8 fan_config[NR_CHANNEL];
+ u8 fan_dynamics[NR_CHANNEL];
+ u16 fault_status;
+ u16 tach[NR_CHANNEL * 2];
+ u16 pwm[NR_CHANNEL];
+ u16 target_count[NR_CHANNEL];
+};
+
+static struct max31790_data *max31790_update_device(struct device *dev)
+{
+ struct max31790_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ struct max31790_data *ret = data;
+ int i;
+ int rv;
+
+ mutex_lock(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+ rv = i2c_smbus_read_byte_data(client,
+ MAX31790_REG_FAN_FAULT_STATUS1);
+ if (rv < 0)
+ goto abort;
+ data->fault_status = rv & 0x3F;
+
+ rv = i2c_smbus_read_byte_data(client,
+ MAX31790_REG_FAN_FAULT_STATUS2);
+ if (rv < 0)
+ goto abort;
+ data->fault_status |= (rv & 0x3F) << 6;
+
+ for (i = 0; i < NR_CHANNEL; i++) {
+ rv = i2c_smbus_read_word_swapped(client,
+ MAX31790_REG_TACH_COUNT(i));
+ if (rv < 0)
+ goto abort;
+ data->tach[i] = rv;
+
+ if (data->fan_config[i]
+ & MAX31790_FAN_CFG_TACH_INPUT) {
+ rv = i2c_smbus_read_word_swapped(client,
+ MAX31790_REG_TACH_COUNT(NR_CHANNEL
+ + i));
+ if (rv < 0)
+ goto abort;
+ data->tach[NR_CHANNEL + i] = rv;
+ } else {
+ rv = i2c_smbus_read_word_swapped(client,
+ MAX31790_REG_PWMOUT(i));
+ if (rv < 0)
+ goto abort;
+ data->pwm[i] = rv;
+
+ rv = i2c_smbus_read_word_swapped(client,
+ MAX31790_REG_TARGET_COUNT(i));
+ if (rv < 0)
+ goto abort;
+ data->target_count[i] = rv;
+ }
+ }
+
+ data->last_updated = jiffies;
+ data->valid = true;
+ }
+ goto done;
+
+abort:
+ data->valid = false;
+ ret = ERR_PTR(rv);
+
+done:
+ mutex_unlock(&data->update_lock);
+
+ return ret;
+}
+
+static const u8 tach_period[8] = { 1, 2, 4, 8, 16, 32, 32, 32 };
+
+static u8 get_tach_period(u8 fan_dynamics)
+{
+ return tach_period[SR_FROM_REG(fan_dynamics)];
+}
+
+static u8 bits_for_tach_period(int rpm)
+{
+ u8 bits;
+
+ if (rpm < 500)
+ bits = 0x0;
+ else if (rpm < 1000)
+ bits = 0x1;
+ else if (rpm < 2000)
+ bits = 0x2;
+ else if (rpm < 4000)
+ bits = 0x3;
+ else if (rpm < 8000)
+ bits = 0x4;
+ else
+ bits = 0x5;
+
+ return bits;
+}
+
+static ssize_t get_fan(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = max31790_update_device(dev);
+ int sr, rpm;
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ sr = get_tach_period(data->fan_dynamics[attr->index]);
+ rpm = RPM_FROM_REG(data->tach[attr->index], sr);
+
+ return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t get_fan_target(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = max31790_update_device(dev);
+ int sr, rpm;
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ sr = get_tach_period(data->fan_dynamics[attr->index]);
+ rpm = RPM_FROM_REG(data->target_count[attr->index], sr);
+
+ return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t set_fan_target(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ u8 bits;
+ int sr;
+ int target_count;
+ unsigned long rpm;
+ int err;
+
+ err = kstrtoul(buf, 10, &rpm);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+
+ rpm = clamp_val(rpm, FAN_RPM_MIN, FAN_RPM_MAX);
+ bits = bits_for_tach_period(rpm);
+ data->fan_dynamics[attr->index] =
+ ((data->fan_dynamics[attr->index]
+ & ~MAX31790_FAN_DYN_SR_MASK)
+ | (bits << MAX31790_FAN_DYN_SR_SHIFT));
+ err = i2c_smbus_write_byte_data(client,
+ MAX31790_REG_FAN_DYNAMICS(attr->index),
+ data->fan_dynamics[attr->index]);
+
+ if (err < 0) {
+ mutex_unlock(&data->update_lock);
+ return err;
+ }
+
+ sr = get_tach_period(data->fan_dynamics[attr->index]);
+ target_count = RPM_TO_REG(rpm, sr);
+ target_count = clamp_val(target_count, 0x1, 0x7FF);
+
+ data->target_count[attr->index] = target_count << 5;
+
+ err = i2c_smbus_write_word_swapped(client,
+ MAX31790_REG_TARGET_COUNT(attr->index),
+ data->target_count[attr->index]);
+
+ mutex_unlock(&data->update_lock);
+
+ if (err < 0)
+ return err;
+
+ return count;
+}
+
+static ssize_t get_pwm(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = max31790_update_device(dev);
+ int pwm;
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ pwm = data->pwm[attr->index] >> 8;
+
+ return sprintf(buf, "%d\n", pwm);
+}
+
+static ssize_t set_pwm(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ unsigned long pwm;
+ int err;
+
+ err = kstrtoul(buf, 10, &pwm);
+ if (err)
+ return err;
+
+ if (pwm > 255)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+
+ data->pwm[attr->index] = pwm << 8;
+ err = i2c_smbus_write_word_swapped(client,
+ MAX31790_REG_PWMOUT(attr->index),
+ data->pwm[attr->index]);
+
+ mutex_unlock(&data->update_lock);
+
+ if (err < 0)
+ return err;
+
+ return count;
+}
+
+static ssize_t get_pwm_enable(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = max31790_update_device(dev);
+ int mode;
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ if (data->fan_config[attr->index] & MAX31790_FAN_CFG_RPM_MODE)
+ mode = 2;
+ else if (data->fan_config[attr->index] & MAX31790_FAN_CFG_TACH_INPUT_EN)
+ mode = 1;
+ else
+ mode = 0;
+
+ return sprintf(buf, "%d\n", mode);
+}
+
+static ssize_t set_pwm_enable(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ unsigned long mode;
+ int err;
+
+ err = kstrtoul(buf, 10, &mode);
+ if (err)
+ return err;
+
+ switch (mode) {
+ case 0:
+ data->fan_config[attr->index] =
+ data->fan_config[attr->index]
+ & ~(MAX31790_FAN_CFG_TACH_INPUT_EN
+ | MAX31790_FAN_CFG_RPM_MODE);
+ break;
+ case 1:
+ data->fan_config[attr->index] =
+ (data->fan_config[attr->index]
+ | MAX31790_FAN_CFG_TACH_INPUT_EN)
+ & ~MAX31790_FAN_CFG_RPM_MODE;
+ break;
+ case 2:
+ data->fan_config[attr->index] =
+ data->fan_config[attr->index]
+ | MAX31790_FAN_CFG_TACH_INPUT_EN
+ | MAX31790_FAN_CFG_RPM_MODE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ mutex_lock(&data->update_lock);
+
+ err = i2c_smbus_write_byte_data(client,
+ MAX31790_REG_FAN_CONFIG(attr->index),
+ data->fan_config[attr->index]);
+
+ mutex_unlock(&data->update_lock);
+
+ if (err < 0)
+ return err;
+
+ return count;
+}
+
+static ssize_t get_fan_fault(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = max31790_update_device(dev);
+ int fault;
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ fault = !!(data->fault_status & (1 << attr->index));
+
+ return sprintf(buf, "%d\n", fault);
+}
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, get_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, get_fan, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, get_fan, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, get_fan, NULL, 5);
+
+static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, get_fan_fault, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, get_fan_fault, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_fault, S_IRUGO, get_fan_fault, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_fault, S_IRUGO, get_fan_fault, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan5_fault, S_IRUGO, get_fan_fault, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan6_fault, S_IRUGO, get_fan_fault, NULL, 5);
+
+static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, get_fan, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, get_fan, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan9_input, S_IRUGO, get_fan, NULL, 8);
+static SENSOR_DEVICE_ATTR(fan10_input, S_IRUGO, get_fan, NULL, 9);
+static SENSOR_DEVICE_ATTR(fan11_input, S_IRUGO, get_fan, NULL, 10);
+static SENSOR_DEVICE_ATTR(fan12_input, S_IRUGO, get_fan, NULL, 11);
+
+static SENSOR_DEVICE_ATTR(fan7_fault, S_IRUGO, get_fan_fault, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan8_fault, S_IRUGO, get_fan_fault, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan9_fault, S_IRUGO, get_fan_fault, NULL, 8);
+static SENSOR_DEVICE_ATTR(fan10_fault, S_IRUGO, get_fan_fault, NULL, 9);
+static SENSOR_DEVICE_ATTR(fan11_fault, S_IRUGO, get_fan_fault, NULL, 10);
+static SENSOR_DEVICE_ATTR(fan12_fault, S_IRUGO, get_fan_fault, NULL, 11);
+
+static SENSOR_DEVICE_ATTR(fan1_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 0);
+static SENSOR_DEVICE_ATTR(fan2_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 1);
+static SENSOR_DEVICE_ATTR(fan3_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 2);
+static SENSOR_DEVICE_ATTR(fan4_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 3);
+static SENSOR_DEVICE_ATTR(fan5_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 4);
+static SENSOR_DEVICE_ATTR(fan6_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 5);
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 3);
+static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 4);
+static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 5);
+
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 2);
+static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 3);
+static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 4);
+static SENSOR_DEVICE_ATTR(pwm6_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 5);
+
+static struct attribute *max31790_attrs[] = {
+ &sensor_dev_attr_fan1_input.dev_attr.attr,
+ &sensor_dev_attr_fan2_input.dev_attr.attr,
+ &sensor_dev_attr_fan3_input.dev_attr.attr,
+ &sensor_dev_attr_fan4_input.dev_attr.attr,
+ &sensor_dev_attr_fan5_input.dev_attr.attr,
+ &sensor_dev_attr_fan6_input.dev_attr.attr,
+
+ &sensor_dev_attr_fan1_fault.dev_attr.attr,
+ &sensor_dev_attr_fan2_fault.dev_attr.attr,
+ &sensor_dev_attr_fan3_fault.dev_attr.attr,
+ &sensor_dev_attr_fan4_fault.dev_attr.attr,
+ &sensor_dev_attr_fan5_fault.dev_attr.attr,
+ &sensor_dev_attr_fan6_fault.dev_attr.attr,
+
+ &sensor_dev_attr_fan7_input.dev_attr.attr,
+ &sensor_dev_attr_fan8_input.dev_attr.attr,
+ &sensor_dev_attr_fan9_input.dev_attr.attr,
+ &sensor_dev_attr_fan10_input.dev_attr.attr,
+ &sensor_dev_attr_fan11_input.dev_attr.attr,
+ &sensor_dev_attr_fan12_input.dev_attr.attr,
+
+ &sensor_dev_attr_fan7_fault.dev_attr.attr,
+ &sensor_dev_attr_fan8_fault.dev_attr.attr,
+ &sensor_dev_attr_fan9_fault.dev_attr.attr,
+ &sensor_dev_attr_fan10_fault.dev_attr.attr,
+ &sensor_dev_attr_fan11_fault.dev_attr.attr,
+ &sensor_dev_attr_fan12_fault.dev_attr.attr,
+
+ &sensor_dev_attr_fan1_target.dev_attr.attr,
+ &sensor_dev_attr_fan2_target.dev_attr.attr,
+ &sensor_dev_attr_fan3_target.dev_attr.attr,
+ &sensor_dev_attr_fan4_target.dev_attr.attr,
+ &sensor_dev_attr_fan5_target.dev_attr.attr,
+ &sensor_dev_attr_fan6_target.dev_attr.attr,
+
+ &sensor_dev_attr_pwm1.dev_attr.attr,
+ &sensor_dev_attr_pwm2.dev_attr.attr,
+ &sensor_dev_attr_pwm3.dev_attr.attr,
+ &sensor_dev_attr_pwm4.dev_attr.attr,
+ &sensor_dev_attr_pwm5.dev_attr.attr,
+ &sensor_dev_attr_pwm6.dev_attr.attr,
+
+ &sensor_dev_attr_pwm1_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm2_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm3_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm4_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm5_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm6_enable.dev_attr.attr,
+ NULL
+};
+
+static umode_t max31790_attrs_visible(struct kobject *kobj,
+ struct attribute *a, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct max31790_data *data = dev_get_drvdata(dev);
+ struct device_attribute *devattr =
+ container_of(a, struct device_attribute, attr);
+ int index = to_sensor_dev_attr(devattr)->index % NR_CHANNEL;
+ u8 fan_config;
+
+ fan_config = data->fan_config[index];
+
+ if (n >= NR_CHANNEL * 2 && n < NR_CHANNEL * 4 &&
+ !(fan_config & MAX31790_FAN_CFG_TACH_INPUT))
+ return 0;
+ if (n >= NR_CHANNEL * 4 && (fan_config & MAX31790_FAN_CFG_TACH_INPUT))
+ return 0;
+
+ return a->mode;
+}
+
+static const struct attribute_group max31790_group = {
+ .attrs = max31790_attrs,
+ .is_visible = max31790_attrs_visible,
+};
+__ATTRIBUTE_GROUPS(max31790);
+
+static int max31790_init_client(struct i2c_client *client,
+ struct max31790_data *data)
+{
+ int i, rv;
+
+ for (i = 0; i < NR_CHANNEL; i++) {
+ rv = i2c_smbus_read_byte_data(client,
+ MAX31790_REG_FAN_CONFIG(i));
+ if (rv < 0)
+ return rv;
+ data->fan_config[i] = rv;
+
+ rv = i2c_smbus_read_byte_data(client,
+ MAX31790_REG_FAN_DYNAMICS(i));
+ if (rv < 0)
+ return rv;
+ data->fan_dynamics[i] = rv;
+ }
+
+ return 0;
+}
+
+static int max31790_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct i2c_adapter *adapter = client->adapter;
+ struct device *dev = &client->dev;
+ struct max31790_data *data;
+ struct device *hwmon_dev;
+ int err;
+
+ if (!i2c_check_functionality(adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
+ return -ENODEV;
+
+ data = devm_kzalloc(dev, sizeof(struct max31790_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->client = client;
+ mutex_init(&data->update_lock);
+
+ /*
+ * Initialize the max31790 chip
+ */
+ err = max31790_init_client(client, data);
+ if (err)
+ return err;
+
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev,
+ client->name, data, max31790_groups);
+
+ return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+static const struct i2c_device_id max31790_id[] = {
+ { "max31790", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max31790_id);
+
+static struct i2c_driver max31790_driver = {
+ .class = I2C_CLASS_HWMON,
+ .probe = max31790_probe,
+ .driver = {
+ .name = "max31790",
+ },
+ .id_table = max31790_id,
+};
+
+module_i2c_driver(max31790_driver);
+
+MODULE_AUTHOR("Il Han <corone.il.han@gmail.com>");
+MODULE_DESCRIPTION("MAX31790 sensor driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/hwmon/nct6775.c b/kernel/drivers/hwmon/nct6775.c
index bd1c99dea..d7ebdf865 100644
--- a/kernel/drivers/hwmon/nct6775.c
+++ b/kernel/drivers/hwmon/nct6775.c
@@ -39,6 +39,7 @@
* nct6779d 15 5 5 2+6 0xc560 0xc1 0x5ca3
* nct6791d 15 6 6 2+6 0xc800 0xc1 0x5ca3
* nct6792d 15 6 6 2+6 0xc910 0xc1 0x5ca3
+ * nct6793d 15 6 6 2+6 0xd120 0xc1 0x5ca3
*
* #temp lists the number of monitored temperature sources (first value) plus
* the number of directly connectable temperature sensors (second value).
@@ -63,7 +64,7 @@
#define USE_ALTERNATE
-enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792 };
+enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792, nct6793 };
/* used to set data->name = nct6775_device_names[data->sio_kind] */
static const char * const nct6775_device_names[] = {
@@ -73,6 +74,17 @@ static const char * const nct6775_device_names[] = {
"nct6779",
"nct6791",
"nct6792",
+ "nct6793",
+};
+
+static const char * const nct6775_sio_names[] __initconst = {
+ "NCT6106D",
+ "NCT6775F",
+ "NCT6776D/F",
+ "NCT6779D",
+ "NCT6791D",
+ "NCT6792D",
+ "NCT6793D",
};
static unsigned short force_id;
@@ -104,6 +116,7 @@ MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
#define SIO_NCT6779_ID 0xc560
#define SIO_NCT6791_ID 0xc800
#define SIO_NCT6792_ID 0xc910
+#define SIO_NCT6793_ID 0xd120
#define SIO_ID_MASK 0xFFF0
enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
@@ -354,6 +367,10 @@ static const u16 NCT6775_REG_TEMP_CRIT[ARRAY_SIZE(nct6775_temp_label) - 1]
/* NCT6776 specific data */
+/* STEP_UP_TIME and STEP_DOWN_TIME regs are swapped for all chips but NCT6775 */
+#define NCT6776_REG_FAN_STEP_UP_TIME NCT6775_REG_FAN_STEP_DOWN_TIME
+#define NCT6776_REG_FAN_STEP_DOWN_TIME NCT6775_REG_FAN_STEP_UP_TIME
+
static const s8 NCT6776_ALARM_BITS[] = {
0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
@@ -498,16 +515,24 @@ static const char *const nct6779_temp_label[] = {
"PCH_DIM1_TEMP",
"PCH_DIM2_TEMP",
"PCH_DIM3_TEMP",
- "BYTE_TEMP"
+ "BYTE_TEMP",
+ "",
+ "",
+ "",
+ "",
+ "Virtual_TEMP"
};
-static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1]
+#define NCT6779_NUM_LABELS (ARRAY_SIZE(nct6779_temp_label) - 5)
+#define NCT6791_NUM_LABELS ARRAY_SIZE(nct6779_temp_label)
+
+static const u16 NCT6779_REG_TEMP_ALTERNATE[NCT6791_NUM_LABELS - 1]
= { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407,
0x408, 0 };
-static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1]
+static const u16 NCT6779_REG_TEMP_CRIT[NCT6791_NUM_LABELS - 1]
= { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
/* NCT6791 specific data */
@@ -533,13 +558,83 @@ static const s8 NCT6791_ALARM_BITS[] = {
4, 5, 13, -1, -1, -1, /* temp1..temp6 */
12, 9 }; /* intrusion0, intrusion1 */
-/* NCT6792 specific data */
+/* NCT6792/NCT6793 specific data */
static const u16 NCT6792_REG_TEMP_MON[] = {
0x73, 0x75, 0x77, 0x79, 0x7b, 0x7d };
static const u16 NCT6792_REG_BEEP[NUM_REG_BEEP] = {
0xb2, 0xb3, 0xb4, 0xb5, 0xbf };
+static const char *const nct6792_temp_label[] = {
+ "",
+ "SYSTIN",
+ "CPUTIN",
+ "AUXTIN0",
+ "AUXTIN1",
+ "AUXTIN2",
+ "AUXTIN3",
+ "",
+ "SMBUSMASTER 0",
+ "SMBUSMASTER 1",
+ "SMBUSMASTER 2",
+ "SMBUSMASTER 3",
+ "SMBUSMASTER 4",
+ "SMBUSMASTER 5",
+ "SMBUSMASTER 6",
+ "SMBUSMASTER 7",
+ "PECI Agent 0",
+ "PECI Agent 1",
+ "PCH_CHIP_CPU_MAX_TEMP",
+ "PCH_CHIP_TEMP",
+ "PCH_CPU_TEMP",
+ "PCH_MCH_TEMP",
+ "PCH_DIM0_TEMP",
+ "PCH_DIM1_TEMP",
+ "PCH_DIM2_TEMP",
+ "PCH_DIM3_TEMP",
+ "BYTE_TEMP",
+ "PECI Agent 0 Calibration",
+ "PECI Agent 1 Calibration",
+ "",
+ "",
+ "Virtual_TEMP"
+};
+
+static const char *const nct6793_temp_label[] = {
+ "",
+ "SYSTIN",
+ "CPUTIN",
+ "AUXTIN0",
+ "AUXTIN1",
+ "AUXTIN2",
+ "AUXTIN3",
+ "",
+ "SMBUSMASTER 0",
+ "SMBUSMASTER 1",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "PECI Agent 0",
+ "PECI Agent 1",
+ "PCH_CHIP_CPU_MAX_TEMP",
+ "PCH_CHIP_TEMP",
+ "PCH_CPU_TEMP",
+ "PCH_MCH_TEMP",
+ "Agent0 Dimm0 ",
+ "Agent0 Dimm1",
+ "Agent1 Dimm0",
+ "Agent1 Dimm1",
+ "BYTE_TEMP0",
+ "BYTE_TEMP1",
+ "PECI Agent 0 Calibration",
+ "PECI Agent 1 Calibration",
+ "",
+ "Virtual_TEMP"
+};
+
/* NCT6102D/NCT6106D specific data */
#define NCT6106_REG_VBAT 0x318
@@ -1056,6 +1151,7 @@ static bool is_word_sized(struct nct6775_data *data, u16 reg)
case nct6779:
case nct6791:
case nct6792:
+ case nct6793:
return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x0b) ||
reg == 0x402 ||
@@ -1407,6 +1503,7 @@ static void nct6775_update_pwm_limits(struct device *dev)
case nct6779:
case nct6791:
case nct6792:
+ case nct6793:
reg = nct6775_read_value(data,
data->REG_CRITICAL_PWM_ENABLE[i]);
if (reg & data->CRITICAL_PWM_ENABLE_MASK)
@@ -2822,6 +2919,7 @@ store_auto_pwm(struct device *dev, struct device_attribute *attr,
case nct6779:
case nct6791:
case nct6792:
+ case nct6793:
nct6775_write_value(data, data->REG_CRITICAL_PWM[nr],
val);
reg = nct6775_read_value(data,
@@ -3256,7 +3354,7 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
pwm4pin = false;
pwm5pin = false;
pwm6pin = false;
- } else { /* NCT6779D, NCT6791D, or NCT6792D */
+ } else { /* NCT6779D, NCT6791D, NCT6792D, or NCT6793D */
regval = superio_inb(sioreg, 0x1c);
fan3pin = !(regval & (1 << 5));
@@ -3269,7 +3367,8 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
fan4min = fan4pin;
- if (data->kind == nct6791 || data->kind == nct6792) {
+ if (data->kind == nct6791 || data->kind == nct6792 ||
+ data->kind == nct6793) {
regval = superio_inb(sioreg, 0x2d);
fan6pin = (regval & (1 << 1));
pwm6pin = (regval & (1 << 0));
@@ -3528,8 +3627,8 @@ static int nct6775_probe(struct platform_device *pdev)
data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES;
data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
- data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
- data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
+ data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
+ data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
data->REG_PWM[0] = NCT6775_REG_PWM;
data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
@@ -3584,7 +3683,7 @@ static int nct6775_probe(struct platform_device *pdev)
data->speed_tolerance_limit = 63;
data->temp_label = nct6779_temp_label;
- data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
+ data->temp_label_num = NCT6779_NUM_LABELS;
data->REG_CONFIG = NCT6775_REG_CONFIG;
data->REG_VBAT = NCT6775_REG_VBAT;
@@ -3600,8 +3699,8 @@ static int nct6775_probe(struct platform_device *pdev)
data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
- data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
- data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
+ data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
+ data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
data->REG_PWM[0] = NCT6775_REG_PWM;
data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
@@ -3643,6 +3742,7 @@ static int nct6775_probe(struct platform_device *pdev)
break;
case nct6791:
case nct6792:
+ case nct6793:
data->in_num = 15;
data->pwm_num = 6;
data->auto_pwm_num = 4;
@@ -3660,8 +3760,19 @@ static int nct6775_probe(struct platform_device *pdev)
data->tolerance_mask = 0x07;
data->speed_tolerance_limit = 63;
- data->temp_label = nct6779_temp_label;
- data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
+ switch (data->kind) {
+ default:
+ case nct6791:
+ data->temp_label = nct6779_temp_label;
+ break;
+ case nct6792:
+ data->temp_label = nct6792_temp_label;
+ break;
+ case nct6793:
+ data->temp_label = nct6793_temp_label;
+ break;
+ }
+ data->temp_label_num = NCT6791_NUM_LABELS;
data->REG_CONFIG = NCT6775_REG_CONFIG;
data->REG_VBAT = NCT6775_REG_VBAT;
@@ -3677,8 +3788,8 @@ static int nct6775_probe(struct platform_device *pdev)
data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
- data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
- data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
+ data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
+ data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
data->REG_PWM[0] = NCT6775_REG_PWM;
data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
@@ -3918,6 +4029,7 @@ static int nct6775_probe(struct platform_device *pdev)
case nct6779:
case nct6791:
case nct6792:
+ case nct6793:
break;
}
@@ -3950,6 +4062,7 @@ static int nct6775_probe(struct platform_device *pdev)
break;
case nct6791:
case nct6792:
+ case nct6793:
tmp |= 0x7e;
break;
}
@@ -4047,7 +4160,8 @@ static int __maybe_unused nct6775_resume(struct device *dev)
if (reg != data->sio_reg_enable)
superio_outb(sioreg, SIO_REG_ENABLE, data->sio_reg_enable);
- if (data->kind == nct6791 || data->kind == nct6792)
+ if (data->kind == nct6791 || data->kind == nct6792 ||
+ data->kind == nct6793)
nct6791_enable_io_mapping(sioreg);
superio_exit(sioreg);
@@ -4106,15 +4220,6 @@ static struct platform_driver nct6775_driver = {
.probe = nct6775_probe,
};
-static const char * const nct6775_sio_names[] __initconst = {
- "NCT6106D",
- "NCT6775F",
- "NCT6776D/F",
- "NCT6779D",
- "NCT6791D",
- "NCT6792D",
-};
-
/* nct6775_find() looks for a '627 in the Super-I/O config space */
static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
{
@@ -4150,6 +4255,9 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
case SIO_NCT6792_ID:
sio_data->kind = nct6792;
break;
+ case SIO_NCT6793_ID:
+ sio_data->kind = nct6793;
+ break;
default:
if (val != 0xffff)
pr_debug("unsupported chip ID: 0x%04x\n", val);
@@ -4175,7 +4283,8 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
}
- if (sio_data->kind == nct6791 || sio_data->kind == nct6792)
+ if (sio_data->kind == nct6791 || sio_data->kind == nct6792 ||
+ sio_data->kind == nct6793)
nct6791_enable_io_mapping(sioaddr);
superio_exit(sioaddr);
@@ -4285,7 +4394,7 @@ static void __exit sensors_nct6775_exit(void)
}
MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
-MODULE_DESCRIPTION("NCT6106D/NCT6775F/NCT6776F/NCT6779D/NCT6791D/NCT6792D driver");
+MODULE_DESCRIPTION("Driver for NCT6775F and compatible chips");
MODULE_LICENSE("GPL");
module_init(sensors_nct6775_init);
diff --git a/kernel/drivers/hwmon/nct7802.c b/kernel/drivers/hwmon/nct7802.c
index fbfc02bb2..3ce33d244 100644
--- a/kernel/drivers/hwmon/nct7802.c
+++ b/kernel/drivers/hwmon/nct7802.c
@@ -49,10 +49,13 @@ static const u8 REG_VOLTAGE_LIMIT_MSB_SHIFT[2][5] = {
#define REG_VOLTAGE_LOW 0x0f
#define REG_FANCOUNT_LOW 0x13
#define REG_START 0x21
-#define REG_MODE 0x22
+#define REG_MODE 0x22 /* 7.2.32 Mode Selection Register */
#define REG_PECI_ENABLE 0x23
#define REG_FAN_ENABLE 0x24
#define REG_VMON_ENABLE 0x25
+#define REG_PWM(x) (0x60 + (x))
+#define REG_SMARTFAN_EN(x) (0x64 + (x) / 2)
+#define SMARTFAN_EN_SHIFT(x) ((x) % 2 * 4)
#define REG_VENDOR_ID 0xfd
#define REG_CHIP_ID 0xfe
#define REG_VERSION_ID 0xff
@@ -66,6 +69,129 @@ struct nct7802_data {
struct mutex access_lock; /* for multi-byte read and write operations */
};
+static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ unsigned int mode;
+ int ret;
+
+ ret = regmap_read(data->regmap, REG_MODE, &mode);
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%u\n", (mode >> (2 * sattr->index) & 3) + 2);
+}
+
+static ssize_t store_temp_type(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ unsigned int type;
+ int err;
+
+ err = kstrtouint(buf, 0, &type);
+ if (err < 0)
+ return err;
+ if (sattr->index == 2 && type != 4) /* RD3 */
+ return -EINVAL;
+ if (type < 3 || type > 4)
+ return -EINVAL;
+ err = regmap_update_bits(data->regmap, REG_MODE,
+ 3 << 2 * sattr->index, (type - 2) << 2 * sattr->index);
+ return err ? : count;
+}
+
+static ssize_t show_pwm_mode(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ unsigned int regval;
+ int ret;
+
+ if (sattr->index > 1)
+ return sprintf(buf, "1\n");
+
+ ret = regmap_read(data->regmap, 0x5E, &regval);
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%u\n", !(regval & (1 << sattr->index)));
+}
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ unsigned int val;
+ int ret;
+
+ if (!attr->index)
+ return sprintf(buf, "255\n");
+
+ ret = regmap_read(data->regmap, attr->index, &val);
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t store_pwm(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ int err;
+ u8 val;
+
+ err = kstrtou8(buf, 0, &val);
+ if (err < 0)
+ return err;
+
+ err = regmap_write(data->regmap, attr->index, val);
+ return err ? : count;
+}
+
+static ssize_t show_pwm_enable(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ unsigned int reg, enabled;
+ int ret;
+
+ ret = regmap_read(data->regmap, REG_SMARTFAN_EN(sattr->index), &reg);
+ if (ret < 0)
+ return ret;
+ enabled = reg >> SMARTFAN_EN_SHIFT(sattr->index) & 1;
+ return sprintf(buf, "%u\n", enabled + 1);
+}
+
+static ssize_t store_pwm_enable(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ u8 val;
+ int ret;
+
+ ret = kstrtou8(buf, 0, &val);
+ if (ret < 0)
+ return ret;
+ if (val < 1 || val > 2)
+ return -EINVAL;
+ ret = regmap_update_bits(data->regmap, REG_SMARTFAN_EN(sattr->index),
+ 1 << SMARTFAN_EN_SHIFT(sattr->index),
+ (val - 1) << SMARTFAN_EN_SHIFT(sattr->index));
+ return ret ? : count;
+}
+
static int nct7802_read_temp(struct nct7802_data *data,
u8 reg_temp, u8 reg_temp_low, int *temp)
{
@@ -377,6 +503,8 @@ store_beep(struct device *dev, struct device_attribute *attr, const char *buf,
return err ? : count;
}
+static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR,
+ show_temp_type, store_temp_type, 0);
static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0x01,
REG_TEMP_LSB);
static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp,
@@ -386,6 +514,8 @@ static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp,
static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp,
store_temp, 0x3a, 0);
+static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR,
+ show_temp_type, store_temp_type, 1);
static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0x02,
REG_TEMP_LSB);
static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp,
@@ -395,6 +525,8 @@ static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp,
static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp,
store_temp, 0x3b, 0);
+static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR,
+ show_temp_type, store_temp_type, 2);
static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0x03,
REG_TEMP_LSB);
static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp,
@@ -475,6 +607,7 @@ static SENSOR_DEVICE_ATTR_2(temp6_beep, S_IRUGO | S_IWUSR, show_beep,
store_beep, 0x5c, 5);
static struct attribute *nct7802_temp_attrs[] = {
+ &sensor_dev_attr_temp1_type.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
@@ -485,7 +618,8 @@ static struct attribute *nct7802_temp_attrs[] = {
&sensor_dev_attr_temp1_fault.dev_attr.attr,
&sensor_dev_attr_temp1_beep.dev_attr.attr,
- &sensor_dev_attr_temp2_input.dev_attr.attr, /* 9 */
+ &sensor_dev_attr_temp2_type.dev_attr.attr, /* 10 */
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp2_crit.dev_attr.attr,
@@ -495,7 +629,8 @@ static struct attribute *nct7802_temp_attrs[] = {
&sensor_dev_attr_temp2_fault.dev_attr.attr,
&sensor_dev_attr_temp2_beep.dev_attr.attr,
- &sensor_dev_attr_temp3_input.dev_attr.attr, /* 18 */
+ &sensor_dev_attr_temp3_type.dev_attr.attr, /* 20 */
+ &sensor_dev_attr_temp3_input.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp3_crit.dev_attr.attr,
@@ -505,7 +640,7 @@ static struct attribute *nct7802_temp_attrs[] = {
&sensor_dev_attr_temp3_fault.dev_attr.attr,
&sensor_dev_attr_temp3_beep.dev_attr.attr,
- &sensor_dev_attr_temp4_input.dev_attr.attr, /* 27 */
+ &sensor_dev_attr_temp4_input.dev_attr.attr, /* 30 */
&sensor_dev_attr_temp4_min.dev_attr.attr,
&sensor_dev_attr_temp4_max.dev_attr.attr,
&sensor_dev_attr_temp4_crit.dev_attr.attr,
@@ -514,7 +649,7 @@ static struct attribute *nct7802_temp_attrs[] = {
&sensor_dev_attr_temp4_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp4_beep.dev_attr.attr,
- &sensor_dev_attr_temp5_input.dev_attr.attr, /* 35 */
+ &sensor_dev_attr_temp5_input.dev_attr.attr, /* 38 */
&sensor_dev_attr_temp5_min.dev_attr.attr,
&sensor_dev_attr_temp5_max.dev_attr.attr,
&sensor_dev_attr_temp5_crit.dev_attr.attr,
@@ -523,7 +658,7 @@ static struct attribute *nct7802_temp_attrs[] = {
&sensor_dev_attr_temp5_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp5_beep.dev_attr.attr,
- &sensor_dev_attr_temp6_input.dev_attr.attr, /* 43 */
+ &sensor_dev_attr_temp6_input.dev_attr.attr, /* 46 */
&sensor_dev_attr_temp6_beep.dev_attr.attr,
NULL
@@ -541,25 +676,27 @@ static umode_t nct7802_temp_is_visible(struct kobject *kobj,
if (err < 0)
return 0;
- if (index < 9 &&
+ if (index < 10 &&
(reg & 03) != 0x01 && (reg & 0x03) != 0x02) /* RD1 */
return 0;
- if (index >= 9 && index < 18 &&
+
+ if (index >= 10 && index < 20 &&
(reg & 0x0c) != 0x04 && (reg & 0x0c) != 0x08) /* RD2 */
return 0;
- if (index >= 18 && index < 27 && (reg & 0x30) != 0x20) /* RD3 */
+ if (index >= 20 && index < 30 && (reg & 0x30) != 0x20) /* RD3 */
return 0;
- if (index >= 27 && index < 35) /* local */
+
+ if (index >= 30 && index < 38) /* local */
return attr->mode;
err = regmap_read(data->regmap, REG_PECI_ENABLE, &reg);
if (err < 0)
return 0;
- if (index >= 35 && index < 43 && !(reg & 0x01)) /* PECI 0 */
+ if (index >= 38 && index < 46 && !(reg & 0x01)) /* PECI 0 */
return 0;
- if (index >= 0x43 && (!(reg & 0x02))) /* PECI 1 */
+ if (index >= 0x46 && (!(reg & 0x02))) /* PECI 1 */
return 0;
return attr->mode;
@@ -687,6 +824,27 @@ static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_alarm, NULL, 0x1a, 2);
static SENSOR_DEVICE_ATTR_2(fan3_beep, S_IRUGO | S_IWUSR, show_beep, store_beep,
0x5b, 2);
+/* 7.2.89 Fan Control Output Type */
+static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
+static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1);
+static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2);
+
+/* 7.2.91... Fan Control Output Value */
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_pwm,
+ REG_PWM(0));
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_pwm,
+ REG_PWM(1));
+static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_pwm,
+ REG_PWM(2));
+
+/* 7.2.95... Temperature to Fan mapping Relationships Register */
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+ store_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+ store_pwm_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+ store_pwm_enable, 2);
+
static struct attribute *nct7802_fan_attrs[] = {
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan1_min.dev_attr.attr,
@@ -725,10 +883,142 @@ static struct attribute_group nct7802_fan_group = {
.is_visible = nct7802_fan_is_visible,
};
+static struct attribute *nct7802_pwm_attrs[] = {
+ &sensor_dev_attr_pwm1_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm1_mode.dev_attr.attr,
+ &sensor_dev_attr_pwm1.dev_attr.attr,
+ &sensor_dev_attr_pwm2_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm2_mode.dev_attr.attr,
+ &sensor_dev_attr_pwm2.dev_attr.attr,
+ &sensor_dev_attr_pwm3_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm3_mode.dev_attr.attr,
+ &sensor_dev_attr_pwm3.dev_attr.attr,
+ NULL
+};
+
+static struct attribute_group nct7802_pwm_group = {
+ .attrs = nct7802_pwm_attrs,
+};
+
+/* 7.2.115... 0x80-0x83, 0x84 Temperature (X-axis) transition */
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x80, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x81, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x82, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x83, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point5_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x84, 0);
+
+/* 7.2.120... 0x85-0x88 PWM (Y-axis) transition */
+static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x85);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x86);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x87);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point4_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x88);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0);
+
+/* 7.2.124 Table 2 X-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x90, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x91, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x92, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x93, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point5_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x94, 0);
+
+/* 7.2.129 Table 2 Y-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x95);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x96);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x97);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point4_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x98);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0);
+
+/* 7.2.133 Table 3 X-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA0, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA1, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA2, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA3, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point5_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA4, 0);
+
+/* 7.2.138 Table 3 Y-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA5);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA6);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA7);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point4_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA8);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0);
+
+static struct attribute *nct7802_auto_point_attrs[] = {
+ &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
+
+ &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
+
+ &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
+
+ &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
+
+ &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr,
+
+ &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point5_pwm.dev_attr.attr,
+
+ NULL
+};
+
+static struct attribute_group nct7802_auto_point_group = {
+ .attrs = nct7802_auto_point_attrs,
+};
+
static const struct attribute_group *nct7802_groups[] = {
&nct7802_temp_group,
&nct7802_in_group,
&nct7802_fan_group,
+ &nct7802_pwm_group,
+ &nct7802_auto_point_group,
NULL
};
@@ -776,7 +1066,8 @@ static int nct7802_detect(struct i2c_client *client,
static bool nct7802_regmap_is_volatile(struct device *dev, unsigned int reg)
{
- return reg != REG_BANK && reg <= 0x20;
+ return (reg != REG_BANK && reg <= 0x20) ||
+ (reg >= REG_PWM(0) && reg <= REG_PWM(2));
}
static const struct regmap_config nct7802_regmap_config = {
diff --git a/kernel/drivers/hwmon/ntc_thermistor.c b/kernel/drivers/hwmon/ntc_thermistor.c
index 688001158..feed30646 100644
--- a/kernel/drivers/hwmon/ntc_thermistor.c
+++ b/kernel/drivers/hwmon/ntc_thermistor.c
@@ -53,6 +53,7 @@ static const struct platform_device_id ntc_thermistor_id[] = {
{ "ncp03wb473", TYPE_NCPXXWB473 },
{ "ncp15wl333", TYPE_NCPXXWL333 },
{ "b57330v2103", TYPE_B57330V2103},
+ { "ncp03wf104", TYPE_NCPXXWF104 },
{ },
};
@@ -135,6 +136,43 @@ static const struct ntc_compensation ncpXXwl333[] = {
{ .temp_c = 125, .ohm = 707 },
};
+static const struct ntc_compensation ncpXXwf104[] = {
+ { .temp_c = -40, .ohm = 4397119 },
+ { .temp_c = -35, .ohm = 3088599 },
+ { .temp_c = -30, .ohm = 2197225 },
+ { .temp_c = -25, .ohm = 1581881 },
+ { .temp_c = -20, .ohm = 1151037 },
+ { .temp_c = -15, .ohm = 846579 },
+ { .temp_c = -10, .ohm = 628988 },
+ { .temp_c = -5, .ohm = 471632 },
+ { .temp_c = 0, .ohm = 357012 },
+ { .temp_c = 5, .ohm = 272500 },
+ { .temp_c = 10, .ohm = 209710 },
+ { .temp_c = 15, .ohm = 162651 },
+ { .temp_c = 20, .ohm = 127080 },
+ { .temp_c = 25, .ohm = 100000 },
+ { .temp_c = 30, .ohm = 79222 },
+ { .temp_c = 35, .ohm = 63167 },
+ { .temp_c = 40, .ohm = 50677 },
+ { .temp_c = 45, .ohm = 40904 },
+ { .temp_c = 50, .ohm = 33195 },
+ { .temp_c = 55, .ohm = 27091 },
+ { .temp_c = 60, .ohm = 22224 },
+ { .temp_c = 65, .ohm = 18323 },
+ { .temp_c = 70, .ohm = 15184 },
+ { .temp_c = 75, .ohm = 12635 },
+ { .temp_c = 80, .ohm = 10566 },
+ { .temp_c = 85, .ohm = 8873 },
+ { .temp_c = 90, .ohm = 7481 },
+ { .temp_c = 95, .ohm = 6337 },
+ { .temp_c = 100, .ohm = 5384 },
+ { .temp_c = 105, .ohm = 4594 },
+ { .temp_c = 110, .ohm = 3934 },
+ { .temp_c = 115, .ohm = 3380 },
+ { .temp_c = 120, .ohm = 2916 },
+ { .temp_c = 125, .ohm = 2522 },
+};
+
/*
* The following compensation table is from the specification of EPCOS NTC
* Thermistors Datasheet
@@ -190,20 +228,21 @@ struct ntc_data {
static int ntc_adc_iio_read(struct ntc_thermistor_platform_data *pdata)
{
struct iio_channel *channel = pdata->chan;
- s64 result;
- int val, ret;
+ int raw, uv, ret;
- ret = iio_read_channel_raw(channel, &val);
+ ret = iio_read_channel_raw(channel, &raw);
if (ret < 0) {
pr_err("read channel() error: %d\n", ret);
return ret;
}
- /* unit: mV */
- result = pdata->pullup_uv * (s64) val;
- result >>= 12;
+ ret = iio_convert_raw_to_processed(channel, raw, &uv, 1000);
+ if (ret < 0) {
+ /* Assume 12 bit ADC with vref at pullup_uv */
+ uv = (pdata->pullup_uv * (s64)raw) >> 12;
+ }
- return (int)result;
+ return uv;
}
static const struct of_device_id ntc_match[] = {
@@ -219,6 +258,8 @@ static const struct of_device_id ntc_match[] = {
.data = &ntc_thermistor_id[4] },
{ .compatible = "epcos,b57330v2103",
.data = &ntc_thermistor_id[5]},
+ { .compatible = "murata,ncp03wf104",
+ .data = &ntc_thermistor_id[6] },
/* Usage of vendor name "ntc" is deprecated */
{ .compatible = "ntc,ncp15wb473",
@@ -309,30 +350,27 @@ static inline u64 div64_u64_safe(u64 dividend, u64 divisor)
static int get_ohm_of_thermistor(struct ntc_data *data, unsigned int uv)
{
struct ntc_thermistor_platform_data *pdata = data->pdata;
- u64 mv = uv / 1000;
- u64 pmv = pdata->pullup_uv / 1000;
+ u32 puv = pdata->pullup_uv;
u64 n, puo, pdo;
puo = pdata->pullup_ohm;
pdo = pdata->pulldown_ohm;
- if (mv == 0) {
- if (pdata->connect == NTC_CONNECTED_POSITIVE)
- return INT_MAX;
- return 0;
- }
- if (mv >= pmv)
+ if (uv == 0)
+ return (pdata->connect == NTC_CONNECTED_POSITIVE) ?
+ INT_MAX : 0;
+ if (uv >= puv)
return (pdata->connect == NTC_CONNECTED_POSITIVE) ?
0 : INT_MAX;
if (pdata->connect == NTC_CONNECTED_POSITIVE && puo == 0)
- n = div64_u64_safe(pdo * (pmv - mv), mv);
+ n = div_u64(pdo * (puv - uv), uv);
else if (pdata->connect == NTC_CONNECTED_GROUND && pdo == 0)
- n = div64_u64_safe(puo * mv, pmv - mv);
+ n = div_u64(puo * uv, puv - uv);
else if (pdata->connect == NTC_CONNECTED_POSITIVE)
- n = div64_u64_safe(pdo * puo * (pmv - mv),
- puo * mv - pdo * (pmv - mv));
+ n = div64_u64_safe(pdo * puo * (puv - uv),
+ puo * uv - pdo * (puv - uv));
else
- n = div64_u64_safe(pdo * puo * mv, pdo * (pmv - mv) - puo * mv);
+ n = div64_u64_safe(pdo * puo * uv, pdo * (puv - uv) - puo * uv);
if (n > INT_MAX)
n = INT_MAX;
@@ -439,7 +477,7 @@ static int ntc_thermistor_get_ohm(struct ntc_data *data)
return -EINVAL;
}
-static int ntc_read_temp(void *dev, long *temp)
+static int ntc_read_temp(void *dev, int *temp)
{
struct ntc_data *data = dev_get_drvdata(dev);
int ohm;
@@ -567,6 +605,10 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
data->comp = b57330v2103;
data->n_comp = ARRAY_SIZE(b57330v2103);
break;
+ case TYPE_NCPXXWF104:
+ data->comp = ncpXXwf104;
+ data->n_comp = ARRAY_SIZE(ncpXXwf104);
+ break;
default:
dev_err(&pdev->dev, "Unknown device type: %lu(%s)\n",
pdev_id->driver_data, pdev_id->name);
diff --git a/kernel/drivers/hwmon/pmbus/Kconfig b/kernel/drivers/hwmon/pmbus/Kconfig
index 9f7dbd189..df6ebb2b8 100644
--- a/kernel/drivers/hwmon/pmbus/Kconfig
+++ b/kernel/drivers/hwmon/pmbus/Kconfig
@@ -20,7 +20,8 @@ config SENSORS_PMBUS
help
If you say yes here you get hardware monitoring support for generic
PMBus devices, including but not limited to ADP4000, BMR453, BMR454,
- MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, UDT020, and TPS40400.
+ MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, TPS40400, TPS544B20,
+ TPS544B25, TPS544C20, TPS544C25, and UDT020.
This driver can also be built as a module. If so, the module will
be called pmbus.
@@ -30,8 +31,8 @@ config SENSORS_ADM1275
default n
help
If you say yes here you get hardware monitoring support for Analog
- Devices ADM1075, ADM1275, and ADM1276 Hot-Swap Controller and Digital
- Power Monitors.
+ Devices ADM1075, ADM1275, ADM1276, ADM1293, and ADM1294 Hot-Swap
+ Controller and Digital Power Monitors.
This driver can also be built as a module. If so, the module will
be called adm1275.
@@ -51,7 +52,8 @@ config SENSORS_LTC2978
default n
help
If you say yes here you get hardware monitoring support for Linear
- Technology LTC2974, LTC2977, LTC2978, LTC3880, LTC3883, and LTM4676.
+ Technology LTC2974, LTC2975, LTC2977, LTC2978, LTC2980, LTC3880,
+ LTC3883, LTC3886, LTC3887, LTCM2987, LTM4675, and LTM4676.
This driver can also be built as a module. If so, the module will
be called ltc2978.
@@ -73,6 +75,16 @@ config SENSORS_MAX16064
This driver can also be built as a module. If so, the module will
be called max16064.
+config SENSORS_MAX20751
+ tristate "Maxim MAX20751"
+ default n
+ help
+ If you say yes here you get hardware monitoring support for Maxim
+ MAX20751.
+
+ This driver can also be built as a module. If so, the module will
+ be called max20751.
+
config SENSORS_MAX34440
tristate "Maxim MAX34440 and compatibles"
default n
diff --git a/kernel/drivers/hwmon/pmbus/Makefile b/kernel/drivers/hwmon/pmbus/Makefile
index 1454293e9..bce046d37 100644
--- a/kernel/drivers/hwmon/pmbus/Makefile
+++ b/kernel/drivers/hwmon/pmbus/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o
obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o
obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
+obj-$(CONFIG_SENSORS_MAX20751) += max20751.o
obj-$(CONFIG_SENSORS_MAX34440) += max34440.o
obj-$(CONFIG_SENSORS_MAX8688) += max8688.o
obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o
diff --git a/kernel/drivers/hwmon/pmbus/adm1275.c b/kernel/drivers/hwmon/pmbus/adm1275.c
index 60aad9570..188af4c89 100644
--- a/kernel/drivers/hwmon/pmbus/adm1275.c
+++ b/kernel/drivers/hwmon/pmbus/adm1275.c
@@ -21,46 +21,120 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/i2c.h>
+#include <linux/bitops.h>
#include "pmbus.h"
-enum chips { adm1075, adm1275, adm1276 };
+enum chips { adm1075, adm1275, adm1276, adm1293, adm1294 };
+
+#define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0)
+#define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5)
+#define ADM1293_MFR_STATUS_VAUX_OV_WARN BIT(6)
#define ADM1275_PEAK_IOUT 0xd0
#define ADM1275_PEAK_VIN 0xd1
#define ADM1275_PEAK_VOUT 0xd2
#define ADM1275_PMON_CONFIG 0xd4
-#define ADM1275_VIN_VOUT_SELECT (1 << 6)
-#define ADM1275_VRANGE (1 << 5)
-#define ADM1075_IRANGE_50 (1 << 4)
-#define ADM1075_IRANGE_25 (1 << 3)
-#define ADM1075_IRANGE_MASK ((1 << 3) | (1 << 4))
+#define ADM1275_VIN_VOUT_SELECT BIT(6)
+#define ADM1275_VRANGE BIT(5)
+#define ADM1075_IRANGE_50 BIT(4)
+#define ADM1075_IRANGE_25 BIT(3)
+#define ADM1075_IRANGE_MASK (BIT(3) | BIT(4))
+
+#define ADM1293_IRANGE_25 0
+#define ADM1293_IRANGE_50 BIT(6)
+#define ADM1293_IRANGE_100 BIT(7)
+#define ADM1293_IRANGE_200 (BIT(6) | BIT(7))
+#define ADM1293_IRANGE_MASK (BIT(6) | BIT(7))
+
+#define ADM1293_VIN_SEL_012 BIT(2)
+#define ADM1293_VIN_SEL_074 BIT(3)
+#define ADM1293_VIN_SEL_210 (BIT(2) | BIT(3))
+#define ADM1293_VIN_SEL_MASK (BIT(2) | BIT(3))
+
+#define ADM1293_VAUX_EN BIT(1)
#define ADM1275_IOUT_WARN2_LIMIT 0xd7
#define ADM1275_DEVICE_CONFIG 0xd8
-#define ADM1275_IOUT_WARN2_SELECT (1 << 4)
+#define ADM1275_IOUT_WARN2_SELECT BIT(4)
#define ADM1276_PEAK_PIN 0xda
-
-#define ADM1275_MFR_STATUS_IOUT_WARN2 (1 << 0)
-
#define ADM1075_READ_VAUX 0xdd
#define ADM1075_VAUX_OV_WARN_LIMIT 0xde
#define ADM1075_VAUX_UV_WARN_LIMIT 0xdf
+#define ADM1293_IOUT_MIN 0xe3
+#define ADM1293_PIN_MIN 0xe4
#define ADM1075_VAUX_STATUS 0xf6
-#define ADM1075_VAUX_OV_WARN (1<<7)
-#define ADM1075_VAUX_UV_WARN (1<<6)
+#define ADM1075_VAUX_OV_WARN BIT(7)
+#define ADM1075_VAUX_UV_WARN BIT(6)
struct adm1275_data {
int id;
bool have_oc_fault;
+ bool have_uc_fault;
+ bool have_vout;
+ bool have_vaux_status;
+ bool have_mfr_vaux_status;
+ bool have_iout_min;
+ bool have_pin_min;
+ bool have_pin_max;
struct pmbus_driver_info info;
};
#define to_adm1275_data(x) container_of(x, struct adm1275_data, info)
+struct coefficients {
+ s16 m;
+ s16 b;
+ s16 R;
+};
+
+static const struct coefficients adm1075_coefficients[] = {
+ [0] = { 27169, 0, -1 }, /* voltage */
+ [1] = { 806, 20475, -1 }, /* current, irange25 */
+ [2] = { 404, 20475, -1 }, /* current, irange50 */
+ [3] = { 0, -1, 8549 }, /* power, irange25 */
+ [4] = { 0, -1, 4279 }, /* power, irange50 */
+};
+
+static const struct coefficients adm1275_coefficients[] = {
+ [0] = { 19199, 0, -2 }, /* voltage, vrange set */
+ [1] = { 6720, 0, -1 }, /* voltage, vrange not set */
+ [2] = { 807, 20475, -1 }, /* current */
+};
+
+static const struct coefficients adm1276_coefficients[] = {
+ [0] = { 19199, 0, -2 }, /* voltage, vrange set */
+ [1] = { 6720, 0, -1 }, /* voltage, vrange not set */
+ [2] = { 807, 20475, -1 }, /* current */
+ [3] = { 6043, 0, -2 }, /* power, vrange set */
+ [4] = { 2115, 0, -1 }, /* power, vrange not set */
+};
+
+static const struct coefficients adm1293_coefficients[] = {
+ [0] = { 3333, -1, 0 }, /* voltage, vrange 1.2V */
+ [1] = { 5552, -5, -1 }, /* voltage, vrange 7.4V */
+ [2] = { 19604, -50, -2 }, /* voltage, vrange 21V */
+ [3] = { 8000, -100, -2 }, /* current, irange25 */
+ [4] = { 4000, -100, -2 }, /* current, irange50 */
+ [5] = { 20000, -1000, -3 }, /* current, irange100 */
+ [6] = { 10000, -1000, -3 }, /* current, irange200 */
+ [7] = { 10417, 0, -1 }, /* power, 1.2V, irange25 */
+ [8] = { 5208, 0, -1 }, /* power, 1.2V, irange50 */
+ [9] = { 26042, 0, -2 }, /* power, 1.2V, irange100 */
+ [10] = { 13021, 0, -2 }, /* power, 1.2V, irange200 */
+ [11] = { 17351, 0, -2 }, /* power, 7.4V, irange25 */
+ [12] = { 8676, 0, -2 }, /* power, 7.4V, irange50 */
+ [13] = { 4338, 0, -2 }, /* power, 7.4V, irange100 */
+ [14] = { 21689, 0, -3 }, /* power, 7.4V, irange200 */
+ [15] = { 6126, 0, -2 }, /* power, 21V, irange25 */
+ [16] = { 30631, 0, -3 }, /* power, 21V, irange50 */
+ [17] = { 15316, 0, -3 }, /* power, 21V, irange100 */
+ [18] = { 7658, 0, -3 }, /* power, 21V, irange200 */
+};
+
static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
{
const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
@@ -72,42 +146,37 @@ static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
switch (reg) {
case PMBUS_IOUT_UC_FAULT_LIMIT:
- if (data->have_oc_fault) {
- ret = -ENXIO;
- break;
- }
+ if (!data->have_uc_fault)
+ return -ENXIO;
ret = pmbus_read_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT);
break;
case PMBUS_IOUT_OC_FAULT_LIMIT:
- if (!data->have_oc_fault) {
- ret = -ENXIO;
- break;
- }
+ if (!data->have_oc_fault)
+ return -ENXIO;
ret = pmbus_read_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT);
break;
case PMBUS_VOUT_OV_WARN_LIMIT:
- if (data->id != adm1075) {
- ret = -ENODATA;
- break;
- }
+ if (data->have_vout)
+ return -ENODATA;
ret = pmbus_read_word_data(client, 0,
ADM1075_VAUX_OV_WARN_LIMIT);
break;
case PMBUS_VOUT_UV_WARN_LIMIT:
- if (data->id != adm1075) {
- ret = -ENODATA;
- break;
- }
+ if (data->have_vout)
+ return -ENODATA;
ret = pmbus_read_word_data(client, 0,
ADM1075_VAUX_UV_WARN_LIMIT);
break;
case PMBUS_READ_VOUT:
- if (data->id != adm1075) {
- ret = -ENODATA;
- break;
- }
+ if (data->have_vout)
+ return -ENODATA;
ret = pmbus_read_word_data(client, 0, ADM1075_READ_VAUX);
break;
+ case PMBUS_VIRT_READ_IOUT_MIN:
+ if (!data->have_iout_min)
+ return -ENXIO;
+ ret = pmbus_read_word_data(client, 0, ADM1293_IOUT_MIN);
+ break;
case PMBUS_VIRT_READ_IOUT_MAX:
ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_IOUT);
break;
@@ -117,11 +186,14 @@ static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
case PMBUS_VIRT_READ_VIN_MAX:
ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VIN);
break;
+ case PMBUS_VIRT_READ_PIN_MIN:
+ if (!data->have_pin_min)
+ return -ENXIO;
+ ret = pmbus_read_word_data(client, 0, ADM1293_PIN_MIN);
+ break;
case PMBUS_VIRT_READ_PIN_MAX:
- if (data->id == adm1275) {
- ret = -ENXIO;
- break;
- }
+ if (!data->have_pin_max)
+ return -ENXIO;
ret = pmbus_read_word_data(client, 0, ADM1276_PEAK_PIN);
break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
@@ -129,8 +201,8 @@ static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
case PMBUS_VIRT_RESET_VIN_HISTORY:
break;
case PMBUS_VIRT_RESET_PIN_HISTORY:
- if (data->id == adm1275)
- ret = -ENXIO;
+ if (!data->have_pin_max)
+ return -ENXIO;
break;
default:
ret = -ENODATA;
@@ -142,6 +214,8 @@ static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
u16 word)
{
+ const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+ const struct adm1275_data *data = to_adm1275_data(info);
int ret;
if (page)
@@ -155,6 +229,9 @@ static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_IOUT, 0);
+ if (!ret && data->have_iout_min)
+ ret = pmbus_write_word_data(client, 0,
+ ADM1293_IOUT_MIN, 0);
break;
case PMBUS_VIRT_RESET_VOUT_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VOUT, 0);
@@ -164,6 +241,9 @@ static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
break;
case PMBUS_VIRT_RESET_PIN_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1276_PEAK_PIN, 0);
+ if (!ret && data->have_pin_min)
+ ret = pmbus_write_word_data(client, 0,
+ ADM1293_PIN_MIN, 0);
break;
default:
ret = -ENODATA;
@@ -186,29 +266,40 @@ static int adm1275_read_byte_data(struct i2c_client *client, int page, int reg)
ret = pmbus_read_byte_data(client, page, PMBUS_STATUS_IOUT);
if (ret < 0)
break;
+ if (!data->have_oc_fault && !data->have_uc_fault)
+ break;
mfr_status = pmbus_read_byte_data(client, page,
PMBUS_STATUS_MFR_SPECIFIC);
- if (mfr_status < 0) {
- ret = mfr_status;
- break;
- }
+ if (mfr_status < 0)
+ return mfr_status;
if (mfr_status & ADM1275_MFR_STATUS_IOUT_WARN2) {
ret |= data->have_oc_fault ?
PB_IOUT_OC_FAULT : PB_IOUT_UC_FAULT;
}
break;
case PMBUS_STATUS_VOUT:
- if (data->id != adm1075) {
- ret = -ENODATA;
- break;
- }
+ if (data->have_vout)
+ return -ENODATA;
ret = 0;
- mfr_status = pmbus_read_byte_data(client, 0,
- ADM1075_VAUX_STATUS);
- if (mfr_status & ADM1075_VAUX_OV_WARN)
- ret |= PB_VOLTAGE_OV_WARNING;
- if (mfr_status & ADM1075_VAUX_UV_WARN)
- ret |= PB_VOLTAGE_UV_WARNING;
+ if (data->have_vaux_status) {
+ mfr_status = pmbus_read_byte_data(client, 0,
+ ADM1075_VAUX_STATUS);
+ if (mfr_status < 0)
+ return mfr_status;
+ if (mfr_status & ADM1075_VAUX_OV_WARN)
+ ret |= PB_VOLTAGE_OV_WARNING;
+ if (mfr_status & ADM1075_VAUX_UV_WARN)
+ ret |= PB_VOLTAGE_UV_WARNING;
+ } else if (data->have_mfr_vaux_status) {
+ mfr_status = pmbus_read_byte_data(client, page,
+ PMBUS_STATUS_MFR_SPECIFIC);
+ if (mfr_status < 0)
+ return mfr_status;
+ if (mfr_status & ADM1293_MFR_STATUS_VAUX_OV_WARN)
+ ret |= PB_VOLTAGE_OV_WARNING;
+ if (mfr_status & ADM1293_MFR_STATUS_VAUX_UV_WARN)
+ ret |= PB_VOLTAGE_UV_WARNING;
+ }
break;
default:
ret = -ENODATA;
@@ -221,6 +312,8 @@ static const struct i2c_device_id adm1275_id[] = {
{ "adm1075", adm1075 },
{ "adm1275", adm1275 },
{ "adm1276", adm1276 },
+ { "adm1293", adm1293 },
+ { "adm1294", adm1294 },
{ }
};
MODULE_DEVICE_TABLE(i2c, adm1275_id);
@@ -234,6 +327,8 @@ static int adm1275_probe(struct i2c_client *client,
struct pmbus_driver_info *info;
struct adm1275_data *data;
const struct i2c_device_id *mid;
+ const struct coefficients *coefficients;
+ int vindex = -1, voindex = -1, cindex = -1, pindex = -1;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_READ_BYTE_DATA
@@ -290,61 +385,38 @@ static int adm1275_probe(struct i2c_client *client,
info->format[PSC_VOLTAGE_IN] = direct;
info->format[PSC_VOLTAGE_OUT] = direct;
info->format[PSC_CURRENT_OUT] = direct;
- info->m[PSC_CURRENT_OUT] = 807;
- info->b[PSC_CURRENT_OUT] = 20475;
- info->R[PSC_CURRENT_OUT] = -1;
+ info->format[PSC_POWER] = direct;
info->func[0] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
info->read_word_data = adm1275_read_word_data;
info->read_byte_data = adm1275_read_byte_data;
info->write_word_data = adm1275_write_word_data;
- if (data->id == adm1075) {
- info->m[PSC_VOLTAGE_IN] = 27169;
- info->b[PSC_VOLTAGE_IN] = 0;
- info->R[PSC_VOLTAGE_IN] = -1;
- info->m[PSC_VOLTAGE_OUT] = 27169;
- info->b[PSC_VOLTAGE_OUT] = 0;
- info->R[PSC_VOLTAGE_OUT] = -1;
- } else if (config & ADM1275_VRANGE) {
- info->m[PSC_VOLTAGE_IN] = 19199;
- info->b[PSC_VOLTAGE_IN] = 0;
- info->R[PSC_VOLTAGE_IN] = -2;
- info->m[PSC_VOLTAGE_OUT] = 19199;
- info->b[PSC_VOLTAGE_OUT] = 0;
- info->R[PSC_VOLTAGE_OUT] = -2;
- } else {
- info->m[PSC_VOLTAGE_IN] = 6720;
- info->b[PSC_VOLTAGE_IN] = 0;
- info->R[PSC_VOLTAGE_IN] = -1;
- info->m[PSC_VOLTAGE_OUT] = 6720;
- info->b[PSC_VOLTAGE_OUT] = 0;
- info->R[PSC_VOLTAGE_OUT] = -1;
- }
-
- if (device_config & ADM1275_IOUT_WARN2_SELECT)
- data->have_oc_fault = true;
-
switch (data->id) {
case adm1075:
- info->format[PSC_POWER] = direct;
- info->b[PSC_POWER] = 0;
- info->R[PSC_POWER] = -1;
+ if (device_config & ADM1275_IOUT_WARN2_SELECT)
+ data->have_oc_fault = true;
+ else
+ data->have_uc_fault = true;
+ data->have_pin_max = true;
+ data->have_vaux_status = true;
+
+ coefficients = adm1075_coefficients;
+ vindex = 0;
switch (config & ADM1075_IRANGE_MASK) {
case ADM1075_IRANGE_25:
- info->m[PSC_POWER] = 8549;
- info->m[PSC_CURRENT_OUT] = 806;
+ cindex = 1;
+ pindex = 3;
break;
case ADM1075_IRANGE_50:
- info->m[PSC_POWER] = 4279;
- info->m[PSC_CURRENT_OUT] = 404;
+ cindex = 2;
+ pindex = 4;
break;
default:
dev_err(&client->dev, "Invalid input current range");
- info->m[PSC_POWER] = 0;
- info->m[PSC_CURRENT_OUT] = 0;
break;
}
+
info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN
| PMBUS_HAVE_STATUS_INPUT;
if (config & ADM1275_VIN_VOUT_SELECT)
@@ -352,6 +424,16 @@ static int adm1275_probe(struct i2c_client *client,
PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
break;
case adm1275:
+ if (device_config & ADM1275_IOUT_WARN2_SELECT)
+ data->have_oc_fault = true;
+ else
+ data->have_uc_fault = true;
+ data->have_vout = true;
+
+ coefficients = adm1275_coefficients;
+ vindex = (config & ADM1275_VRANGE) ? 0 : 1;
+ cindex = 2;
+
if (config & ADM1275_VIN_VOUT_SELECT)
info->func[0] |=
PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
@@ -360,22 +442,100 @@ static int adm1275_probe(struct i2c_client *client,
PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT;
break;
case adm1276:
- info->format[PSC_POWER] = direct;
+ if (device_config & ADM1275_IOUT_WARN2_SELECT)
+ data->have_oc_fault = true;
+ else
+ data->have_uc_fault = true;
+ data->have_vout = true;
+ data->have_pin_max = true;
+
+ coefficients = adm1276_coefficients;
+ vindex = (config & ADM1275_VRANGE) ? 0 : 1;
+ cindex = 2;
+ pindex = (config & ADM1275_VRANGE) ? 3 : 4;
+
info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN
| PMBUS_HAVE_STATUS_INPUT;
if (config & ADM1275_VIN_VOUT_SELECT)
info->func[0] |=
PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
- if (config & ADM1275_VRANGE) {
- info->m[PSC_POWER] = 6043;
- info->b[PSC_POWER] = 0;
- info->R[PSC_POWER] = -2;
- } else {
- info->m[PSC_POWER] = 2115;
- info->b[PSC_POWER] = 0;
- info->R[PSC_POWER] = -1;
+ break;
+ case adm1293:
+ case adm1294:
+ data->have_iout_min = true;
+ data->have_pin_min = true;
+ data->have_pin_max = true;
+ data->have_mfr_vaux_status = true;
+
+ coefficients = adm1293_coefficients;
+
+ voindex = 0;
+ switch (config & ADM1293_VIN_SEL_MASK) {
+ case ADM1293_VIN_SEL_012: /* 1.2V */
+ vindex = 0;
+ break;
+ case ADM1293_VIN_SEL_074: /* 7.4V */
+ vindex = 1;
+ break;
+ case ADM1293_VIN_SEL_210: /* 21V */
+ vindex = 2;
+ break;
+ default: /* disabled */
+ break;
}
+
+ switch (config & ADM1293_IRANGE_MASK) {
+ case ADM1293_IRANGE_25:
+ cindex = 3;
+ break;
+ case ADM1293_IRANGE_50:
+ cindex = 4;
+ break;
+ case ADM1293_IRANGE_100:
+ cindex = 5;
+ break;
+ case ADM1293_IRANGE_200:
+ cindex = 6;
+ break;
+ }
+
+ if (vindex >= 0)
+ pindex = 7 + vindex * 4 + (cindex - 3);
+
+ if (config & ADM1293_VAUX_EN)
+ info->func[0] |=
+ PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
+
+ info->func[0] |= PMBUS_HAVE_PIN |
+ PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT;
+
break;
+ default:
+ dev_err(&client->dev, "Unsupported device\n");
+ return -ENODEV;
+ }
+
+ if (voindex < 0)
+ voindex = vindex;
+ if (vindex >= 0) {
+ info->m[PSC_VOLTAGE_IN] = coefficients[vindex].m;
+ info->b[PSC_VOLTAGE_IN] = coefficients[vindex].b;
+ info->R[PSC_VOLTAGE_IN] = coefficients[vindex].R;
+ }
+ if (voindex >= 0) {
+ info->m[PSC_VOLTAGE_OUT] = coefficients[voindex].m;
+ info->b[PSC_VOLTAGE_OUT] = coefficients[voindex].b;
+ info->R[PSC_VOLTAGE_OUT] = coefficients[voindex].R;
+ }
+ if (cindex >= 0) {
+ info->m[PSC_CURRENT_OUT] = coefficients[cindex].m;
+ info->b[PSC_CURRENT_OUT] = coefficients[cindex].b;
+ info->R[PSC_CURRENT_OUT] = coefficients[cindex].R;
+ }
+ if (pindex >= 0) {
+ info->m[PSC_POWER] = coefficients[pindex].m;
+ info->b[PSC_POWER] = coefficients[pindex].b;
+ info->R[PSC_POWER] = coefficients[pindex].R;
}
return pmbus_do_probe(client, id, info);
diff --git a/kernel/drivers/hwmon/pmbus/lm25066.c b/kernel/drivers/hwmon/pmbus/lm25066.c
index a26b1d1d9..a3d912cd3 100644
--- a/kernel/drivers/hwmon/pmbus/lm25066.c
+++ b/kernel/drivers/hwmon/pmbus/lm25066.c
@@ -19,6 +19,7 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -42,15 +43,15 @@ enum chips { lm25056, lm25063, lm25066, lm5064, lm5066 };
#define LM25066_READ_AVG_IIN 0xde
#define LM25066_READ_AVG_PIN 0xdf
-#define LM25066_DEV_SETUP_CL (1 << 4) /* Current limit */
+#define LM25066_DEV_SETUP_CL BIT(4) /* Current limit */
/* LM25056 only */
#define LM25056_VAUX_OV_WARN_LIMIT 0xe3
#define LM25056_VAUX_UV_WARN_LIMIT 0xe4
-#define LM25056_MFR_STS_VAUX_OV_WARN (1 << 1)
-#define LM25056_MFR_STS_VAUX_UV_WARN (1 << 0)
+#define LM25056_MFR_STS_VAUX_OV_WARN BIT(1)
+#define LM25056_MFR_STS_VAUX_UV_WARN BIT(0)
/* LM25063 only */
diff --git a/kernel/drivers/hwmon/pmbus/ltc2978.c b/kernel/drivers/hwmon/pmbus/ltc2978.c
index 0835050ec..58b789c28 100644
--- a/kernel/drivers/hwmon/pmbus/ltc2978.c
+++ b/kernel/drivers/hwmon/pmbus/ltc2978.c
@@ -1,9 +1,9 @@
/*
- * Hardware monitoring driver for LTC2974, LTC2977, LTC2978, LTC3880,
- * LTC3883, and LTM4676
+ * Hardware monitoring driver for LTC2978 and compatible chips.
*
* Copyright (c) 2011 Ericsson AB.
- * Copyright (c) 2013, 2014 Guenter Roeck
+ * Copyright (c) 2013, 2014, 2015 Guenter Roeck
+ * Copyright (c) 2015 Linear Technology
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -16,6 +16,8 @@
* GNU General Public License for more details.
*/
+#include <linux/delay.h>
+#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -25,49 +27,71 @@
#include <linux/regulator/driver.h>
#include "pmbus.h"
-enum chips { ltc2974, ltc2977, ltc2978, ltc3880, ltc3883, ltm4676 };
+enum chips { ltc2974, ltc2975, ltc2977, ltc2978, ltc2980, ltc3880, ltc3882,
+ ltc3883, ltc3886, ltc3887, ltm2987, ltm4675, ltm4676 };
/* Common for all chips */
#define LTC2978_MFR_VOUT_PEAK 0xdd
#define LTC2978_MFR_VIN_PEAK 0xde
#define LTC2978_MFR_TEMPERATURE_PEAK 0xdf
-#define LTC2978_MFR_SPECIAL_ID 0xe7
+#define LTC2978_MFR_SPECIAL_ID 0xe7 /* Undocumented on LTC3882 */
+#define LTC2978_MFR_COMMON 0xef
-/* LTC2974, LCT2977, and LTC2978 */
+/* LTC2974, LTC2975, LCT2977, LTC2980, LTC2978, and LTM2987 */
#define LTC2978_MFR_VOUT_MIN 0xfb
#define LTC2978_MFR_VIN_MIN 0xfc
#define LTC2978_MFR_TEMPERATURE_MIN 0xfd
-/* LTC2974 only */
+/* LTC2974, LTC2975 */
#define LTC2974_MFR_IOUT_PEAK 0xd7
#define LTC2974_MFR_IOUT_MIN 0xd8
-/* LTC3880, LTC3883, and LTM4676 */
+/* LTC3880, LTC3882, LTC3883, LTC3887, LTM4675, and LTM4676 */
#define LTC3880_MFR_IOUT_PEAK 0xd7
#define LTC3880_MFR_CLEAR_PEAKS 0xe3
#define LTC3880_MFR_TEMPERATURE2_PEAK 0xf4
-/* LTC3883 only */
+/* LTC3883 and LTC3886 only */
#define LTC3883_MFR_IIN_PEAK 0xe1
-#define LTC2974_ID_REV1 0x0212
-#define LTC2974_ID_REV2 0x0213
+/* LTC2975 only */
+#define LTC2975_MFR_IIN_PEAK 0xc4
+#define LTC2975_MFR_IIN_MIN 0xc5
+#define LTC2975_MFR_PIN_PEAK 0xc6
+#define LTC2975_MFR_PIN_MIN 0xc7
+
+#define LTC2978_ID_MASK 0xfff0
+
+#define LTC2974_ID 0x0210
+#define LTC2975_ID 0x0220
#define LTC2977_ID 0x0130
-#define LTC2978_ID_REV1 0x0121
-#define LTC2978_ID_REV2 0x0122
-#define LTC2978A_ID 0x0124
-#define LTC3880_ID 0x4000
-#define LTC3880_ID_MASK 0xff00
+#define LTC2978_ID_REV1 0x0110 /* Early revision */
+#define LTC2978_ID_REV2 0x0120
+#define LTC2980_ID_A 0x8030 /* A/B for two die IDs */
+#define LTC2980_ID_B 0x8040
+#define LTC3880_ID 0x4020
+#define LTC3882_ID 0x4200
+#define LTC3882_ID_D1 0x4240 /* Dash 1 */
#define LTC3883_ID 0x4300
-#define LTC3883_ID_MASK 0xff00
-#define LTM4676_ID 0x4480 /* datasheet claims 0x440X */
-#define LTM4676_ID_MASK 0xfff0
+#define LTC3886_ID 0x4600
+#define LTC3887_ID 0x4700
+#define LTM2987_ID_A 0x8010 /* A/B for two die IDs */
+#define LTM2987_ID_B 0x8020
+#define LTM4675_ID 0x47a0
+#define LTM4676_ID_REV1 0x4400
+#define LTM4676_ID_REV2 0x4480
+#define LTM4676A_ID 0x47e0
#define LTC2974_NUM_PAGES 4
#define LTC2978_NUM_PAGES 8
#define LTC3880_NUM_PAGES 2
#define LTC3883_NUM_PAGES 1
+#define LTC_POLL_TIMEOUT 100 /* in milli-seconds */
+
+#define LTC_NOT_BUSY BIT(5)
+#define LTC_NOT_PENDING BIT(4)
+
/*
* LTC2978 clears peak data whenever the CLEAR_FAULTS command is executed, which
* happens pretty much each time chip data is updated. Raw peak data therefore
@@ -82,13 +106,91 @@ struct ltc2978_data {
u16 temp_min[LTC2974_NUM_PAGES], temp_max[LTC2974_NUM_PAGES];
u16 vout_min[LTC2978_NUM_PAGES], vout_max[LTC2978_NUM_PAGES];
u16 iout_min[LTC2974_NUM_PAGES], iout_max[LTC2974_NUM_PAGES];
- u16 iin_max;
+ u16 iin_min, iin_max;
+ u16 pin_min, pin_max;
u16 temp2_max;
struct pmbus_driver_info info;
+ u32 features;
};
-
#define to_ltc2978_data(x) container_of(x, struct ltc2978_data, info)
+#define FEAT_CLEAR_PEAKS BIT(0)
+#define FEAT_NEEDS_POLLING BIT(1)
+
+#define has_clear_peaks(d) ((d)->features & FEAT_CLEAR_PEAKS)
+#define needs_polling(d) ((d)->features & FEAT_NEEDS_POLLING)
+
+static int ltc_wait_ready(struct i2c_client *client)
+{
+ unsigned long timeout = jiffies + msecs_to_jiffies(LTC_POLL_TIMEOUT);
+ const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+ struct ltc2978_data *data = to_ltc2978_data(info);
+ int status;
+ u8 mask;
+
+ if (!needs_polling(data))
+ return 0;
+
+ /*
+ * LTC3883 does not support LTC_NOT_PENDING, even though
+ * the datasheet claims that it does.
+ */
+ mask = LTC_NOT_BUSY;
+ if (data->id != ltc3883)
+ mask |= LTC_NOT_PENDING;
+
+ do {
+ status = pmbus_read_byte_data(client, 0, LTC2978_MFR_COMMON);
+ if (status == -EBADMSG || status == -ENXIO) {
+ /* PEC error or NACK: chip may be busy, try again */
+ usleep_range(50, 100);
+ continue;
+ }
+ if (status < 0)
+ return status;
+
+ if ((status & mask) == mask)
+ return 0;
+
+ usleep_range(50, 100);
+ } while (time_before(jiffies, timeout));
+
+ return -ETIMEDOUT;
+}
+
+static int ltc_read_word_data(struct i2c_client *client, int page, int reg)
+{
+ int ret;
+
+ ret = ltc_wait_ready(client);
+ if (ret < 0)
+ return ret;
+
+ return pmbus_read_word_data(client, page, reg);
+}
+
+static int ltc_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+ int ret;
+
+ ret = ltc_wait_ready(client);
+ if (ret < 0)
+ return ret;
+
+ return pmbus_read_byte_data(client, page, reg);
+}
+
+static int ltc_write_byte(struct i2c_client *client, int page, u8 byte)
+{
+ int ret;
+
+ ret = ltc_wait_ready(client);
+ if (ret < 0)
+ return ret;
+
+ return pmbus_write_byte(client, page, byte);
+}
+
static inline int lin11_to_val(int data)
{
s16 e = ((s16)data) >> 11;
@@ -102,6 +204,34 @@ static inline int lin11_to_val(int data)
return (e < 0 ? m >> -e : m << e);
}
+static int ltc_get_max(struct ltc2978_data *data, struct i2c_client *client,
+ int page, int reg, u16 *pmax)
+{
+ int ret;
+
+ ret = ltc_read_word_data(client, page, reg);
+ if (ret >= 0) {
+ if (lin11_to_val(ret) > lin11_to_val(*pmax))
+ *pmax = ret;
+ ret = *pmax;
+ }
+ return ret;
+}
+
+static int ltc_get_min(struct ltc2978_data *data, struct i2c_client *client,
+ int page, int reg, u16 *pmin)
+{
+ int ret;
+
+ ret = ltc_read_word_data(client, page, reg);
+ if (ret >= 0) {
+ if (lin11_to_val(ret) < lin11_to_val(*pmin))
+ *pmin = ret;
+ ret = *pmin;
+ }
+ return ret;
+}
+
static int ltc2978_read_word_data_common(struct i2c_client *client, int page,
int reg)
{
@@ -111,15 +241,11 @@ static int ltc2978_read_word_data_common(struct i2c_client *client, int page,
switch (reg) {
case PMBUS_VIRT_READ_VIN_MAX:
- ret = pmbus_read_word_data(client, page, LTC2978_MFR_VIN_PEAK);
- if (ret >= 0) {
- if (lin11_to_val(ret) > lin11_to_val(data->vin_max))
- data->vin_max = ret;
- ret = data->vin_max;
- }
+ ret = ltc_get_max(data, client, page, LTC2978_MFR_VIN_PEAK,
+ &data->vin_max);
break;
case PMBUS_VIRT_READ_VOUT_MAX:
- ret = pmbus_read_word_data(client, page, LTC2978_MFR_VOUT_PEAK);
+ ret = ltc_read_word_data(client, page, LTC2978_MFR_VOUT_PEAK);
if (ret >= 0) {
/*
* VOUT is 16 bit unsigned with fixed exponent,
@@ -131,14 +257,9 @@ static int ltc2978_read_word_data_common(struct i2c_client *client, int page,
}
break;
case PMBUS_VIRT_READ_TEMP_MAX:
- ret = pmbus_read_word_data(client, page,
- LTC2978_MFR_TEMPERATURE_PEAK);
- if (ret >= 0) {
- if (lin11_to_val(ret)
- > lin11_to_val(data->temp_max[page]))
- data->temp_max[page] = ret;
- ret = data->temp_max[page];
- }
+ ret = ltc_get_max(data, client, page,
+ LTC2978_MFR_TEMPERATURE_PEAK,
+ &data->temp_max[page]);
break;
case PMBUS_VIRT_RESET_VOUT_HISTORY:
case PMBUS_VIRT_RESET_VIN_HISTORY:
@@ -146,6 +267,9 @@ static int ltc2978_read_word_data_common(struct i2c_client *client, int page,
ret = 0;
break;
default:
+ ret = ltc_wait_ready(client);
+ if (ret < 0)
+ return ret;
ret = -ENODATA;
break;
}
@@ -160,15 +284,11 @@ static int ltc2978_read_word_data(struct i2c_client *client, int page, int reg)
switch (reg) {
case PMBUS_VIRT_READ_VIN_MIN:
- ret = pmbus_read_word_data(client, page, LTC2978_MFR_VIN_MIN);
- if (ret >= 0) {
- if (lin11_to_val(ret) < lin11_to_val(data->vin_min))
- data->vin_min = ret;
- ret = data->vin_min;
- }
+ ret = ltc_get_min(data, client, page, LTC2978_MFR_VIN_MIN,
+ &data->vin_min);
break;
case PMBUS_VIRT_READ_VOUT_MIN:
- ret = pmbus_read_word_data(client, page, LTC2978_MFR_VOUT_MIN);
+ ret = ltc_read_word_data(client, page, LTC2978_MFR_VOUT_MIN);
if (ret >= 0) {
/*
* VOUT_MIN is known to not be supported on some lots
@@ -184,14 +304,9 @@ static int ltc2978_read_word_data(struct i2c_client *client, int page, int reg)
}
break;
case PMBUS_VIRT_READ_TEMP_MIN:
- ret = pmbus_read_word_data(client, page,
- LTC2978_MFR_TEMPERATURE_MIN);
- if (ret >= 0) {
- if (lin11_to_val(ret)
- < lin11_to_val(data->temp_min[page]))
- data->temp_min[page] = ret;
- ret = data->temp_min[page];
- }
+ ret = ltc_get_min(data, client, page,
+ LTC2978_MFR_TEMPERATURE_MIN,
+ &data->temp_min[page]);
break;
case PMBUS_VIRT_READ_IOUT_MAX:
case PMBUS_VIRT_RESET_IOUT_HISTORY:
@@ -214,22 +329,12 @@ static int ltc2974_read_word_data(struct i2c_client *client, int page, int reg)
switch (reg) {
case PMBUS_VIRT_READ_IOUT_MAX:
- ret = pmbus_read_word_data(client, page, LTC2974_MFR_IOUT_PEAK);
- if (ret >= 0) {
- if (lin11_to_val(ret)
- > lin11_to_val(data->iout_max[page]))
- data->iout_max[page] = ret;
- ret = data->iout_max[page];
- }
+ ret = ltc_get_max(data, client, page, LTC2974_MFR_IOUT_PEAK,
+ &data->iout_max[page]);
break;
case PMBUS_VIRT_READ_IOUT_MIN:
- ret = pmbus_read_word_data(client, page, LTC2974_MFR_IOUT_MIN);
- if (ret >= 0) {
- if (lin11_to_val(ret)
- < lin11_to_val(data->iout_min[page]))
- data->iout_min[page] = ret;
- ret = data->iout_min[page];
- }
+ ret = ltc_get_min(data, client, page, LTC2974_MFR_IOUT_MIN,
+ &data->iout_min[page]);
break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
ret = 0;
@@ -241,6 +346,40 @@ static int ltc2974_read_word_data(struct i2c_client *client, int page, int reg)
return ret;
}
+static int ltc2975_read_word_data(struct i2c_client *client, int page, int reg)
+{
+ const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+ struct ltc2978_data *data = to_ltc2978_data(info);
+ int ret;
+
+ switch (reg) {
+ case PMBUS_VIRT_READ_IIN_MAX:
+ ret = ltc_get_max(data, client, page, LTC2975_MFR_IIN_PEAK,
+ &data->iin_max);
+ break;
+ case PMBUS_VIRT_READ_IIN_MIN:
+ ret = ltc_get_min(data, client, page, LTC2975_MFR_IIN_MIN,
+ &data->iin_min);
+ break;
+ case PMBUS_VIRT_READ_PIN_MAX:
+ ret = ltc_get_max(data, client, page, LTC2975_MFR_PIN_PEAK,
+ &data->pin_max);
+ break;
+ case PMBUS_VIRT_READ_PIN_MIN:
+ ret = ltc_get_min(data, client, page, LTC2975_MFR_PIN_MIN,
+ &data->pin_min);
+ break;
+ case PMBUS_VIRT_RESET_IIN_HISTORY:
+ case PMBUS_VIRT_RESET_PIN_HISTORY:
+ ret = 0;
+ break;
+ default:
+ ret = ltc2978_read_word_data(client, page, reg);
+ break;
+ }
+ return ret;
+}
+
static int ltc3880_read_word_data(struct i2c_client *client, int page, int reg)
{
const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
@@ -249,22 +388,13 @@ static int ltc3880_read_word_data(struct i2c_client *client, int page, int reg)
switch (reg) {
case PMBUS_VIRT_READ_IOUT_MAX:
- ret = pmbus_read_word_data(client, page, LTC3880_MFR_IOUT_PEAK);
- if (ret >= 0) {
- if (lin11_to_val(ret)
- > lin11_to_val(data->iout_max[page]))
- data->iout_max[page] = ret;
- ret = data->iout_max[page];
- }
+ ret = ltc_get_max(data, client, page, LTC3880_MFR_IOUT_PEAK,
+ &data->iout_max[page]);
break;
case PMBUS_VIRT_READ_TEMP2_MAX:
- ret = pmbus_read_word_data(client, page,
- LTC3880_MFR_TEMPERATURE2_PEAK);
- if (ret >= 0) {
- if (lin11_to_val(ret) > lin11_to_val(data->temp2_max))
- data->temp2_max = ret;
- ret = data->temp2_max;
- }
+ ret = ltc_get_max(data, client, page,
+ LTC3880_MFR_TEMPERATURE2_PEAK,
+ &data->temp2_max);
break;
case PMBUS_VIRT_READ_VIN_MIN:
case PMBUS_VIRT_READ_VOUT_MIN:
@@ -290,13 +420,8 @@ static int ltc3883_read_word_data(struct i2c_client *client, int page, int reg)
switch (reg) {
case PMBUS_VIRT_READ_IIN_MAX:
- ret = pmbus_read_word_data(client, page, LTC3883_MFR_IIN_PEAK);
- if (ret >= 0) {
- if (lin11_to_val(ret)
- > lin11_to_val(data->iin_max))
- data->iin_max = ret;
- ret = data->iin_max;
- }
+ ret = ltc_get_max(data, client, page, LTC3883_MFR_IIN_PEAK,
+ &data->iin_max);
break;
case PMBUS_VIRT_RESET_IIN_HISTORY:
ret = 0;
@@ -308,15 +433,15 @@ static int ltc3883_read_word_data(struct i2c_client *client, int page, int reg)
return ret;
}
-static int ltc2978_clear_peaks(struct i2c_client *client, int page,
- enum chips id)
+static int ltc2978_clear_peaks(struct ltc2978_data *data,
+ struct i2c_client *client, int page)
{
int ret;
- if (id == ltc3880 || id == ltc3883)
- ret = pmbus_write_byte(client, 0, LTC3880_MFR_CLEAR_PEAKS);
+ if (has_clear_peaks(data))
+ ret = ltc_write_byte(client, 0, LTC3880_MFR_CLEAR_PEAKS);
else
- ret = pmbus_write_byte(client, page, PMBUS_CLEAR_FAULTS);
+ ret = ltc_write_byte(client, page, PMBUS_CLEAR_FAULTS);
return ret;
}
@@ -331,33 +456,42 @@ static int ltc2978_write_word_data(struct i2c_client *client, int page,
switch (reg) {
case PMBUS_VIRT_RESET_IIN_HISTORY:
data->iin_max = 0x7c00;
- ret = ltc2978_clear_peaks(client, page, data->id);
+ data->iin_min = 0x7bff;
+ ret = ltc2978_clear_peaks(data, client, 0);
+ break;
+ case PMBUS_VIRT_RESET_PIN_HISTORY:
+ data->pin_max = 0x7c00;
+ data->pin_min = 0x7bff;
+ ret = ltc2978_clear_peaks(data, client, 0);
break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
data->iout_max[page] = 0x7c00;
data->iout_min[page] = 0xfbff;
- ret = ltc2978_clear_peaks(client, page, data->id);
+ ret = ltc2978_clear_peaks(data, client, page);
break;
case PMBUS_VIRT_RESET_TEMP2_HISTORY:
data->temp2_max = 0x7c00;
- ret = ltc2978_clear_peaks(client, page, data->id);
+ ret = ltc2978_clear_peaks(data, client, page);
break;
case PMBUS_VIRT_RESET_VOUT_HISTORY:
data->vout_min[page] = 0xffff;
data->vout_max[page] = 0;
- ret = ltc2978_clear_peaks(client, page, data->id);
+ ret = ltc2978_clear_peaks(data, client, page);
break;
case PMBUS_VIRT_RESET_VIN_HISTORY:
data->vin_min = 0x7bff;
data->vin_max = 0x7c00;
- ret = ltc2978_clear_peaks(client, page, data->id);
+ ret = ltc2978_clear_peaks(data, client, page);
break;
case PMBUS_VIRT_RESET_TEMP_HISTORY:
data->temp_min[page] = 0x7bff;
data->temp_max[page] = 0x7c00;
- ret = ltc2978_clear_peaks(client, page, data->id);
+ ret = ltc2978_clear_peaks(data, client, page);
break;
default:
+ ret = ltc_wait_ready(client);
+ if (ret < 0)
+ return ret;
ret = -ENODATA;
break;
}
@@ -366,10 +500,17 @@ static int ltc2978_write_word_data(struct i2c_client *client, int page,
static const struct i2c_device_id ltc2978_id[] = {
{"ltc2974", ltc2974},
+ {"ltc2975", ltc2975},
{"ltc2977", ltc2977},
{"ltc2978", ltc2978},
+ {"ltc2980", ltc2980},
{"ltc3880", ltc3880},
+ {"ltc3882", ltc3882},
{"ltc3883", ltc3883},
+ {"ltc3886", ltc3886},
+ {"ltc3887", ltc3887},
+ {"ltm2987", ltm2987},
+ {"ltm4675", ltm4675},
{"ltm4676", ltm4676},
{}
};
@@ -388,10 +529,74 @@ static const struct regulator_desc ltc2978_reg_desc[] = {
};
#endif /* CONFIG_SENSORS_LTC2978_REGULATOR */
+static int ltc2978_get_id(struct i2c_client *client)
+{
+ int chip_id;
+
+ chip_id = i2c_smbus_read_word_data(client, LTC2978_MFR_SPECIAL_ID);
+ if (chip_id < 0) {
+ const struct i2c_device_id *id;
+ u8 buf[I2C_SMBUS_BLOCK_MAX];
+ int ret;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_READ_BLOCK_DATA))
+ return -ENODEV;
+
+ ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, buf);
+ if (ret < 0)
+ return ret;
+ if (ret < 3 || strncmp(buf, "LTC", 3))
+ return -ENODEV;
+
+ ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf);
+ if (ret < 0)
+ return ret;
+ for (id = &ltc2978_id[0]; strlen(id->name); id++) {
+ if (!strncasecmp(id->name, buf, strlen(id->name)))
+ return (int)id->driver_data;
+ }
+ return -ENODEV;
+ }
+
+ chip_id &= LTC2978_ID_MASK;
+
+ if (chip_id == LTC2974_ID)
+ return ltc2974;
+ else if (chip_id == LTC2975_ID)
+ return ltc2975;
+ else if (chip_id == LTC2977_ID)
+ return ltc2977;
+ else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2)
+ return ltc2978;
+ else if (chip_id == LTC2980_ID_A || chip_id == LTC2980_ID_B)
+ return ltc2980;
+ else if (chip_id == LTC3880_ID)
+ return ltc3880;
+ else if (chip_id == LTC3882_ID || chip_id == LTC3882_ID_D1)
+ return ltc3882;
+ else if (chip_id == LTC3883_ID)
+ return ltc3883;
+ else if (chip_id == LTC3886_ID)
+ return ltc3886;
+ else if (chip_id == LTC3887_ID)
+ return ltc3887;
+ else if (chip_id == LTM2987_ID_A || chip_id == LTM2987_ID_B)
+ return ltm2987;
+ else if (chip_id == LTM4675_ID)
+ return ltm4675;
+ else if (chip_id == LTM4676_ID_REV1 || chip_id == LTM4676_ID_REV2 ||
+ chip_id == LTM4676A_ID)
+ return ltm4676;
+
+ dev_err(&client->dev, "Unsupported chip ID 0x%x\n", chip_id);
+ return -ENODEV;
+}
+
static int ltc2978_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- int chip_id, i;
+ int i, chip_id;
struct ltc2978_data *data;
struct pmbus_driver_info *info;
@@ -404,27 +609,11 @@ static int ltc2978_probe(struct i2c_client *client,
if (!data)
return -ENOMEM;
- chip_id = i2c_smbus_read_word_data(client, LTC2978_MFR_SPECIAL_ID);
+ chip_id = ltc2978_get_id(client);
if (chip_id < 0)
return chip_id;
- if (chip_id == LTC2974_ID_REV1 || chip_id == LTC2974_ID_REV2) {
- data->id = ltc2974;
- } else if (chip_id == LTC2977_ID) {
- data->id = ltc2977;
- } else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2 ||
- chip_id == LTC2978A_ID) {
- data->id = ltc2978;
- } else if ((chip_id & LTC3880_ID_MASK) == LTC3880_ID) {
- data->id = ltc3880;
- } else if ((chip_id & LTC3883_ID_MASK) == LTC3883_ID) {
- data->id = ltc3883;
- } else if ((chip_id & LTM4676_ID_MASK) == LTM4676_ID) {
- data->id = ltm4676;
- } else {
- dev_err(&client->dev, "Unsupported chip ID 0x%x\n", chip_id);
- return -ENODEV;
- }
+ data->id = chip_id;
if (data->id != id->driver_data)
dev_warn(&client->dev,
"Device mismatch: Configured %s, detected %s\n",
@@ -433,6 +622,9 @@ static int ltc2978_probe(struct i2c_client *client,
info = &data->info;
info->write_word_data = ltc2978_write_word_data;
+ info->write_byte = ltc_write_byte;
+ info->read_word_data = ltc_read_word_data;
+ info->read_byte_data = ltc_read_byte_data;
data->vin_min = 0x7bff;
data->vin_max = 0x7c00;
@@ -461,8 +653,23 @@ static int ltc2978_probe(struct i2c_client *client,
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
}
break;
+ case ltc2975:
+ info->read_word_data = ltc2975_read_word_data;
+ info->pages = LTC2974_NUM_PAGES;
+ info->func[0] = PMBUS_HAVE_IIN | PMBUS_HAVE_PIN
+ | PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
+ | PMBUS_HAVE_TEMP2;
+ for (i = 0; i < info->pages; i++) {
+ info->func[i] |= PMBUS_HAVE_VOUT
+ | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_POUT
+ | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
+ | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
+ }
+ break;
case ltc2977:
case ltc2978:
+ case ltc2980:
+ case ltm2987:
info->read_word_data = ltc2978_read_word_data;
info->pages = LTC2978_NUM_PAGES;
info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
@@ -474,7 +681,10 @@ static int ltc2978_probe(struct i2c_client *client,
}
break;
case ltc3880:
+ case ltc3887:
+ case ltm4675:
case ltm4676:
+ data->features |= FEAT_CLEAR_PEAKS | FEAT_NEEDS_POLLING;
info->read_word_data = ltc3880_read_word_data;
info->pages = LTC3880_NUM_PAGES;
info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
@@ -488,7 +698,23 @@ static int ltc2978_probe(struct i2c_client *client,
| PMBUS_HAVE_POUT
| PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
break;
+ case ltc3882:
+ data->features |= FEAT_CLEAR_PEAKS | FEAT_NEEDS_POLLING;
+ info->read_word_data = ltc3880_read_word_data;
+ info->pages = LTC3880_NUM_PAGES;
+ info->func[0] = PMBUS_HAVE_VIN
+ | PMBUS_HAVE_STATUS_INPUT
+ | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+ | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+ | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP
+ | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP;
+ info->func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+ | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+ | PMBUS_HAVE_POUT
+ | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
+ break;
case ltc3883:
+ data->features |= FEAT_CLEAR_PEAKS | FEAT_NEEDS_POLLING;
info->read_word_data = ltc3883_read_word_data;
info->pages = LTC3883_NUM_PAGES;
info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
@@ -498,6 +724,21 @@ static int ltc2978_probe(struct i2c_client *client,
| PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP
| PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP;
break;
+ case ltc3886:
+ data->features |= FEAT_CLEAR_PEAKS | FEAT_NEEDS_POLLING;
+ info->read_word_data = ltc3883_read_word_data;
+ info->pages = LTC3880_NUM_PAGES;
+ info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
+ | PMBUS_HAVE_STATUS_INPUT
+ | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+ | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+ | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP
+ | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP;
+ info->func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+ | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+ | PMBUS_HAVE_POUT
+ | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
+ break;
default:
return -ENODEV;
}
@@ -517,10 +758,17 @@ static int ltc2978_probe(struct i2c_client *client,
#ifdef CONFIG_OF
static const struct of_device_id ltc2978_of_match[] = {
{ .compatible = "lltc,ltc2974" },
+ { .compatible = "lltc,ltc2975" },
{ .compatible = "lltc,ltc2977" },
{ .compatible = "lltc,ltc2978" },
+ { .compatible = "lltc,ltc2980" },
{ .compatible = "lltc,ltc3880" },
+ { .compatible = "lltc,ltc3882" },
{ .compatible = "lltc,ltc3883" },
+ { .compatible = "lltc,ltc3886" },
+ { .compatible = "lltc,ltc3887" },
+ { .compatible = "lltc,ltm2987" },
+ { .compatible = "lltc,ltm4675" },
{ .compatible = "lltc,ltm4676" },
{ }
};
@@ -540,5 +788,5 @@ static struct i2c_driver ltc2978_driver = {
module_i2c_driver(ltc2978_driver);
MODULE_AUTHOR("Guenter Roeck");
-MODULE_DESCRIPTION("PMBus driver for LTC2974, LTC2978, LTC3880, LTC3883, and LTM4676");
+MODULE_DESCRIPTION("PMBus driver for LTC2978 and comppatible chips");
MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/hwmon/pmbus/max20751.c b/kernel/drivers/hwmon/pmbus/max20751.c
new file mode 100644
index 000000000..ab74aeae8
--- /dev/null
+++ b/kernel/drivers/hwmon/pmbus/max20751.c
@@ -0,0 +1,64 @@
+/*
+ * Hardware monitoring driver for Maxim MAX20751
+ *
+ * Copyright (c) 2015 Guenter Roeck
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+static struct pmbus_driver_info max20751_info = {
+ .pages = 1,
+ .format[PSC_VOLTAGE_IN] = linear,
+ .format[PSC_VOLTAGE_OUT] = vid,
+ .vrm_version = vr12,
+ .format[PSC_TEMPERATURE] = linear,
+ .format[PSC_CURRENT_OUT] = linear,
+ .format[PSC_POWER] = linear,
+ .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
+ PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
+ PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP |
+ PMBUS_HAVE_POUT,
+};
+
+static int max20751_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ return pmbus_do_probe(client, id, &max20751_info);
+}
+
+static const struct i2c_device_id max20751_id[] = {
+ {"max20751", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, max20751_id);
+
+static struct i2c_driver max20751_driver = {
+ .driver = {
+ .name = "max20751",
+ },
+ .probe = max20751_probe,
+ .remove = pmbus_do_remove,
+ .id_table = max20751_id,
+};
+
+module_i2c_driver(max20751_driver);
+
+MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
+MODULE_DESCRIPTION("PMBus driver for Maxim MAX20751");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/hwmon/pmbus/max34440.c b/kernel/drivers/hwmon/pmbus/max34440.c
index 7e930c3ce..74a1f6f68 100644
--- a/kernel/drivers/hwmon/pmbus/max34440.c
+++ b/kernel/drivers/hwmon/pmbus/max34440.c
@@ -19,6 +19,7 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -38,10 +39,10 @@ enum chips { max34440, max34441, max34446, max34460, max34461 };
#define MAX34446_MFR_IOUT_AVG 0xe2
#define MAX34446_MFR_TEMPERATURE_AVG 0xe3
-#define MAX34440_STATUS_OC_WARN (1 << 0)
-#define MAX34440_STATUS_OC_FAULT (1 << 1)
-#define MAX34440_STATUS_OT_FAULT (1 << 5)
-#define MAX34440_STATUS_OT_WARN (1 << 6)
+#define MAX34440_STATUS_OC_WARN BIT(0)
+#define MAX34440_STATUS_OC_FAULT BIT(1)
+#define MAX34440_STATUS_OT_FAULT BIT(5)
+#define MAX34440_STATUS_OT_WARN BIT(6)
struct max34440_data {
int id;
diff --git a/kernel/drivers/hwmon/pmbus/max8688.c b/kernel/drivers/hwmon/pmbus/max8688.c
index f04454a42..dd4883a19 100644
--- a/kernel/drivers/hwmon/pmbus/max8688.c
+++ b/kernel/drivers/hwmon/pmbus/max8688.c
@@ -18,6 +18,7 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -30,15 +31,15 @@
#define MAX8688_MFR_TEMPERATURE_PEAK 0xd6
#define MAX8688_MFG_STATUS 0xd8
-#define MAX8688_STATUS_OC_FAULT (1 << 4)
-#define MAX8688_STATUS_OV_FAULT (1 << 5)
-#define MAX8688_STATUS_OV_WARNING (1 << 8)
-#define MAX8688_STATUS_UV_FAULT (1 << 9)
-#define MAX8688_STATUS_UV_WARNING (1 << 10)
-#define MAX8688_STATUS_UC_FAULT (1 << 11)
-#define MAX8688_STATUS_OC_WARNING (1 << 12)
-#define MAX8688_STATUS_OT_FAULT (1 << 13)
-#define MAX8688_STATUS_OT_WARNING (1 << 14)
+#define MAX8688_STATUS_OC_FAULT BIT(4)
+#define MAX8688_STATUS_OV_FAULT BIT(5)
+#define MAX8688_STATUS_OV_WARNING BIT(8)
+#define MAX8688_STATUS_UV_FAULT BIT(9)
+#define MAX8688_STATUS_UV_WARNING BIT(10)
+#define MAX8688_STATUS_UC_FAULT BIT(11)
+#define MAX8688_STATUS_OC_WARNING BIT(12)
+#define MAX8688_STATUS_OT_FAULT BIT(13)
+#define MAX8688_STATUS_OT_WARNING BIT(14)
static int max8688_read_word_data(struct i2c_client *client, int page, int reg)
{
diff --git a/kernel/drivers/hwmon/pmbus/pmbus.c b/kernel/drivers/hwmon/pmbus/pmbus.c
index 554d0249d..0a74991a6 100644
--- a/kernel/drivers/hwmon/pmbus/pmbus.c
+++ b/kernel/drivers/hwmon/pmbus/pmbus.c
@@ -129,6 +129,7 @@ static int pmbus_identify(struct i2c_client *client,
break;
case 1:
info->format[PSC_VOLTAGE_OUT] = vid;
+ info->vrm_version = vr11;
break;
case 2:
info->format[PSC_VOLTAGE_OUT] = direct;
@@ -193,6 +194,10 @@ static const struct i2c_device_id pmbus_id[] = {
{"pdt012", 1},
{"pmbus", 0},
{"tps40400", 1},
+ {"tps544b20", 1},
+ {"tps544b25", 1},
+ {"tps544c20", 1},
+ {"tps544c25", 1},
{"udt020", 1},
{}
};
diff --git a/kernel/drivers/hwmon/pmbus/pmbus.h b/kernel/drivers/hwmon/pmbus/pmbus.h
index 89a23ff83..bfcb13bae 100644
--- a/kernel/drivers/hwmon/pmbus/pmbus.h
+++ b/kernel/drivers/hwmon/pmbus/pmbus.h
@@ -19,114 +19,116 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <linux/regulator/driver.h>
-
#ifndef PMBUS_H
#define PMBUS_H
+#include <linux/bitops.h>
+#include <linux/regulator/driver.h>
+
/*
* Registers
*/
-#define PMBUS_PAGE 0x00
-#define PMBUS_OPERATION 0x01
-#define PMBUS_ON_OFF_CONFIG 0x02
-#define PMBUS_CLEAR_FAULTS 0x03
-#define PMBUS_PHASE 0x04
-
-#define PMBUS_CAPABILITY 0x19
-#define PMBUS_QUERY 0x1A
-
-#define PMBUS_VOUT_MODE 0x20
-#define PMBUS_VOUT_COMMAND 0x21
-#define PMBUS_VOUT_TRIM 0x22
-#define PMBUS_VOUT_CAL_OFFSET 0x23
-#define PMBUS_VOUT_MAX 0x24
-#define PMBUS_VOUT_MARGIN_HIGH 0x25
-#define PMBUS_VOUT_MARGIN_LOW 0x26
-#define PMBUS_VOUT_TRANSITION_RATE 0x27
-#define PMBUS_VOUT_DROOP 0x28
-#define PMBUS_VOUT_SCALE_LOOP 0x29
-#define PMBUS_VOUT_SCALE_MONITOR 0x2A
-
-#define PMBUS_COEFFICIENTS 0x30
-#define PMBUS_POUT_MAX 0x31
-
-#define PMBUS_FAN_CONFIG_12 0x3A
-#define PMBUS_FAN_COMMAND_1 0x3B
-#define PMBUS_FAN_COMMAND_2 0x3C
-#define PMBUS_FAN_CONFIG_34 0x3D
-#define PMBUS_FAN_COMMAND_3 0x3E
-#define PMBUS_FAN_COMMAND_4 0x3F
-
-#define PMBUS_VOUT_OV_FAULT_LIMIT 0x40
-#define PMBUS_VOUT_OV_FAULT_RESPONSE 0x41
-#define PMBUS_VOUT_OV_WARN_LIMIT 0x42
-#define PMBUS_VOUT_UV_WARN_LIMIT 0x43
-#define PMBUS_VOUT_UV_FAULT_LIMIT 0x44
-#define PMBUS_VOUT_UV_FAULT_RESPONSE 0x45
-#define PMBUS_IOUT_OC_FAULT_LIMIT 0x46
-#define PMBUS_IOUT_OC_FAULT_RESPONSE 0x47
-#define PMBUS_IOUT_OC_LV_FAULT_LIMIT 0x48
-#define PMBUS_IOUT_OC_LV_FAULT_RESPONSE 0x49
-#define PMBUS_IOUT_OC_WARN_LIMIT 0x4A
-#define PMBUS_IOUT_UC_FAULT_LIMIT 0x4B
-#define PMBUS_IOUT_UC_FAULT_RESPONSE 0x4C
-
-#define PMBUS_OT_FAULT_LIMIT 0x4F
-#define PMBUS_OT_FAULT_RESPONSE 0x50
-#define PMBUS_OT_WARN_LIMIT 0x51
-#define PMBUS_UT_WARN_LIMIT 0x52
-#define PMBUS_UT_FAULT_LIMIT 0x53
-#define PMBUS_UT_FAULT_RESPONSE 0x54
-#define PMBUS_VIN_OV_FAULT_LIMIT 0x55
-#define PMBUS_VIN_OV_FAULT_RESPONSE 0x56
-#define PMBUS_VIN_OV_WARN_LIMIT 0x57
-#define PMBUS_VIN_UV_WARN_LIMIT 0x58
-#define PMBUS_VIN_UV_FAULT_LIMIT 0x59
-
-#define PMBUS_IIN_OC_FAULT_LIMIT 0x5B
-#define PMBUS_IIN_OC_WARN_LIMIT 0x5D
-
-#define PMBUS_POUT_OP_FAULT_LIMIT 0x68
-#define PMBUS_POUT_OP_WARN_LIMIT 0x6A
-#define PMBUS_PIN_OP_WARN_LIMIT 0x6B
-
-#define PMBUS_STATUS_BYTE 0x78
-#define PMBUS_STATUS_WORD 0x79
-#define PMBUS_STATUS_VOUT 0x7A
-#define PMBUS_STATUS_IOUT 0x7B
-#define PMBUS_STATUS_INPUT 0x7C
-#define PMBUS_STATUS_TEMPERATURE 0x7D
-#define PMBUS_STATUS_CML 0x7E
-#define PMBUS_STATUS_OTHER 0x7F
-#define PMBUS_STATUS_MFR_SPECIFIC 0x80
-#define PMBUS_STATUS_FAN_12 0x81
-#define PMBUS_STATUS_FAN_34 0x82
-
-#define PMBUS_READ_VIN 0x88
-#define PMBUS_READ_IIN 0x89
-#define PMBUS_READ_VCAP 0x8A
-#define PMBUS_READ_VOUT 0x8B
-#define PMBUS_READ_IOUT 0x8C
-#define PMBUS_READ_TEMPERATURE_1 0x8D
-#define PMBUS_READ_TEMPERATURE_2 0x8E
-#define PMBUS_READ_TEMPERATURE_3 0x8F
-#define PMBUS_READ_FAN_SPEED_1 0x90
-#define PMBUS_READ_FAN_SPEED_2 0x91
-#define PMBUS_READ_FAN_SPEED_3 0x92
-#define PMBUS_READ_FAN_SPEED_4 0x93
-#define PMBUS_READ_DUTY_CYCLE 0x94
-#define PMBUS_READ_FREQUENCY 0x95
-#define PMBUS_READ_POUT 0x96
-#define PMBUS_READ_PIN 0x97
-
-#define PMBUS_REVISION 0x98
-#define PMBUS_MFR_ID 0x99
-#define PMBUS_MFR_MODEL 0x9A
-#define PMBUS_MFR_REVISION 0x9B
-#define PMBUS_MFR_LOCATION 0x9C
-#define PMBUS_MFR_DATE 0x9D
-#define PMBUS_MFR_SERIAL 0x9E
+enum pmbus_regs {
+ PMBUS_PAGE = 0x00,
+ PMBUS_OPERATION = 0x01,
+ PMBUS_ON_OFF_CONFIG = 0x02,
+ PMBUS_CLEAR_FAULTS = 0x03,
+ PMBUS_PHASE = 0x04,
+
+ PMBUS_CAPABILITY = 0x19,
+ PMBUS_QUERY = 0x1A,
+
+ PMBUS_VOUT_MODE = 0x20,
+ PMBUS_VOUT_COMMAND = 0x21,
+ PMBUS_VOUT_TRIM = 0x22,
+ PMBUS_VOUT_CAL_OFFSET = 0x23,
+ PMBUS_VOUT_MAX = 0x24,
+ PMBUS_VOUT_MARGIN_HIGH = 0x25,
+ PMBUS_VOUT_MARGIN_LOW = 0x26,
+ PMBUS_VOUT_TRANSITION_RATE = 0x27,
+ PMBUS_VOUT_DROOP = 0x28,
+ PMBUS_VOUT_SCALE_LOOP = 0x29,
+ PMBUS_VOUT_SCALE_MONITOR = 0x2A,
+
+ PMBUS_COEFFICIENTS = 0x30,
+ PMBUS_POUT_MAX = 0x31,
+
+ PMBUS_FAN_CONFIG_12 = 0x3A,
+ PMBUS_FAN_COMMAND_1 = 0x3B,
+ PMBUS_FAN_COMMAND_2 = 0x3C,
+ PMBUS_FAN_CONFIG_34 = 0x3D,
+ PMBUS_FAN_COMMAND_3 = 0x3E,
+ PMBUS_FAN_COMMAND_4 = 0x3F,
+
+ PMBUS_VOUT_OV_FAULT_LIMIT = 0x40,
+ PMBUS_VOUT_OV_FAULT_RESPONSE = 0x41,
+ PMBUS_VOUT_OV_WARN_LIMIT = 0x42,
+ PMBUS_VOUT_UV_WARN_LIMIT = 0x43,
+ PMBUS_VOUT_UV_FAULT_LIMIT = 0x44,
+ PMBUS_VOUT_UV_FAULT_RESPONSE = 0x45,
+ PMBUS_IOUT_OC_FAULT_LIMIT = 0x46,
+ PMBUS_IOUT_OC_FAULT_RESPONSE = 0x47,
+ PMBUS_IOUT_OC_LV_FAULT_LIMIT = 0x48,
+ PMBUS_IOUT_OC_LV_FAULT_RESPONSE = 0x49,
+ PMBUS_IOUT_OC_WARN_LIMIT = 0x4A,
+ PMBUS_IOUT_UC_FAULT_LIMIT = 0x4B,
+ PMBUS_IOUT_UC_FAULT_RESPONSE = 0x4C,
+
+ PMBUS_OT_FAULT_LIMIT = 0x4F,
+ PMBUS_OT_FAULT_RESPONSE = 0x50,
+ PMBUS_OT_WARN_LIMIT = 0x51,
+ PMBUS_UT_WARN_LIMIT = 0x52,
+ PMBUS_UT_FAULT_LIMIT = 0x53,
+ PMBUS_UT_FAULT_RESPONSE = 0x54,
+ PMBUS_VIN_OV_FAULT_LIMIT = 0x55,
+ PMBUS_VIN_OV_FAULT_RESPONSE = 0x56,
+ PMBUS_VIN_OV_WARN_LIMIT = 0x57,
+ PMBUS_VIN_UV_WARN_LIMIT = 0x58,
+ PMBUS_VIN_UV_FAULT_LIMIT = 0x59,
+
+ PMBUS_IIN_OC_FAULT_LIMIT = 0x5B,
+ PMBUS_IIN_OC_WARN_LIMIT = 0x5D,
+
+ PMBUS_POUT_OP_FAULT_LIMIT = 0x68,
+ PMBUS_POUT_OP_WARN_LIMIT = 0x6A,
+ PMBUS_PIN_OP_WARN_LIMIT = 0x6B,
+
+ PMBUS_STATUS_BYTE = 0x78,
+ PMBUS_STATUS_WORD = 0x79,
+ PMBUS_STATUS_VOUT = 0x7A,
+ PMBUS_STATUS_IOUT = 0x7B,
+ PMBUS_STATUS_INPUT = 0x7C,
+ PMBUS_STATUS_TEMPERATURE = 0x7D,
+ PMBUS_STATUS_CML = 0x7E,
+ PMBUS_STATUS_OTHER = 0x7F,
+ PMBUS_STATUS_MFR_SPECIFIC = 0x80,
+ PMBUS_STATUS_FAN_12 = 0x81,
+ PMBUS_STATUS_FAN_34 = 0x82,
+
+ PMBUS_READ_VIN = 0x88,
+ PMBUS_READ_IIN = 0x89,
+ PMBUS_READ_VCAP = 0x8A,
+ PMBUS_READ_VOUT = 0x8B,
+ PMBUS_READ_IOUT = 0x8C,
+ PMBUS_READ_TEMPERATURE_1 = 0x8D,
+ PMBUS_READ_TEMPERATURE_2 = 0x8E,
+ PMBUS_READ_TEMPERATURE_3 = 0x8F,
+ PMBUS_READ_FAN_SPEED_1 = 0x90,
+ PMBUS_READ_FAN_SPEED_2 = 0x91,
+ PMBUS_READ_FAN_SPEED_3 = 0x92,
+ PMBUS_READ_FAN_SPEED_4 = 0x93,
+ PMBUS_READ_DUTY_CYCLE = 0x94,
+ PMBUS_READ_FREQUENCY = 0x95,
+ PMBUS_READ_POUT = 0x96,
+ PMBUS_READ_PIN = 0x97,
+
+ PMBUS_REVISION = 0x98,
+ PMBUS_MFR_ID = 0x99,
+ PMBUS_MFR_MODEL = 0x9A,
+ PMBUS_MFR_REVISION = 0x9B,
+ PMBUS_MFR_LOCATION = 0x9C,
+ PMBUS_MFR_DATE = 0x9D,
+ PMBUS_MFR_SERIAL = 0x9E,
/*
* Virtual registers.
@@ -148,55 +150,58 @@
* the calling PMBus core code will abort if the chip driver returns an error
* code when reading or writing virtual registers.
*/
-#define PMBUS_VIRT_BASE 0x100
-#define PMBUS_VIRT_READ_TEMP_AVG (PMBUS_VIRT_BASE + 0)
-#define PMBUS_VIRT_READ_TEMP_MIN (PMBUS_VIRT_BASE + 1)
-#define PMBUS_VIRT_READ_TEMP_MAX (PMBUS_VIRT_BASE + 2)
-#define PMBUS_VIRT_RESET_TEMP_HISTORY (PMBUS_VIRT_BASE + 3)
-#define PMBUS_VIRT_READ_VIN_AVG (PMBUS_VIRT_BASE + 4)
-#define PMBUS_VIRT_READ_VIN_MIN (PMBUS_VIRT_BASE + 5)
-#define PMBUS_VIRT_READ_VIN_MAX (PMBUS_VIRT_BASE + 6)
-#define PMBUS_VIRT_RESET_VIN_HISTORY (PMBUS_VIRT_BASE + 7)
-#define PMBUS_VIRT_READ_IIN_AVG (PMBUS_VIRT_BASE + 8)
-#define PMBUS_VIRT_READ_IIN_MIN (PMBUS_VIRT_BASE + 9)
-#define PMBUS_VIRT_READ_IIN_MAX (PMBUS_VIRT_BASE + 10)
-#define PMBUS_VIRT_RESET_IIN_HISTORY (PMBUS_VIRT_BASE + 11)
-#define PMBUS_VIRT_READ_PIN_AVG (PMBUS_VIRT_BASE + 12)
-#define PMBUS_VIRT_READ_PIN_MAX (PMBUS_VIRT_BASE + 13)
-#define PMBUS_VIRT_RESET_PIN_HISTORY (PMBUS_VIRT_BASE + 14)
-#define PMBUS_VIRT_READ_POUT_AVG (PMBUS_VIRT_BASE + 15)
-#define PMBUS_VIRT_READ_POUT_MAX (PMBUS_VIRT_BASE + 16)
-#define PMBUS_VIRT_RESET_POUT_HISTORY (PMBUS_VIRT_BASE + 17)
-#define PMBUS_VIRT_READ_VOUT_AVG (PMBUS_VIRT_BASE + 18)
-#define PMBUS_VIRT_READ_VOUT_MIN (PMBUS_VIRT_BASE + 19)
-#define PMBUS_VIRT_READ_VOUT_MAX (PMBUS_VIRT_BASE + 20)
-#define PMBUS_VIRT_RESET_VOUT_HISTORY (PMBUS_VIRT_BASE + 21)
-#define PMBUS_VIRT_READ_IOUT_AVG (PMBUS_VIRT_BASE + 22)
-#define PMBUS_VIRT_READ_IOUT_MIN (PMBUS_VIRT_BASE + 23)
-#define PMBUS_VIRT_READ_IOUT_MAX (PMBUS_VIRT_BASE + 24)
-#define PMBUS_VIRT_RESET_IOUT_HISTORY (PMBUS_VIRT_BASE + 25)
-#define PMBUS_VIRT_READ_TEMP2_AVG (PMBUS_VIRT_BASE + 26)
-#define PMBUS_VIRT_READ_TEMP2_MIN (PMBUS_VIRT_BASE + 27)
-#define PMBUS_VIRT_READ_TEMP2_MAX (PMBUS_VIRT_BASE + 28)
-#define PMBUS_VIRT_RESET_TEMP2_HISTORY (PMBUS_VIRT_BASE + 29)
-
-#define PMBUS_VIRT_READ_VMON (PMBUS_VIRT_BASE + 30)
-#define PMBUS_VIRT_VMON_UV_WARN_LIMIT (PMBUS_VIRT_BASE + 31)
-#define PMBUS_VIRT_VMON_OV_WARN_LIMIT (PMBUS_VIRT_BASE + 32)
-#define PMBUS_VIRT_VMON_UV_FAULT_LIMIT (PMBUS_VIRT_BASE + 33)
-#define PMBUS_VIRT_VMON_OV_FAULT_LIMIT (PMBUS_VIRT_BASE + 34)
-#define PMBUS_VIRT_STATUS_VMON (PMBUS_VIRT_BASE + 35)
+ PMBUS_VIRT_BASE = 0x100,
+ PMBUS_VIRT_READ_TEMP_AVG,
+ PMBUS_VIRT_READ_TEMP_MIN,
+ PMBUS_VIRT_READ_TEMP_MAX,
+ PMBUS_VIRT_RESET_TEMP_HISTORY,
+ PMBUS_VIRT_READ_VIN_AVG,
+ PMBUS_VIRT_READ_VIN_MIN,
+ PMBUS_VIRT_READ_VIN_MAX,
+ PMBUS_VIRT_RESET_VIN_HISTORY,
+ PMBUS_VIRT_READ_IIN_AVG,
+ PMBUS_VIRT_READ_IIN_MIN,
+ PMBUS_VIRT_READ_IIN_MAX,
+ PMBUS_VIRT_RESET_IIN_HISTORY,
+ PMBUS_VIRT_READ_PIN_AVG,
+ PMBUS_VIRT_READ_PIN_MIN,
+ PMBUS_VIRT_READ_PIN_MAX,
+ PMBUS_VIRT_RESET_PIN_HISTORY,
+ PMBUS_VIRT_READ_POUT_AVG,
+ PMBUS_VIRT_READ_POUT_MIN,
+ PMBUS_VIRT_READ_POUT_MAX,
+ PMBUS_VIRT_RESET_POUT_HISTORY,
+ PMBUS_VIRT_READ_VOUT_AVG,
+ PMBUS_VIRT_READ_VOUT_MIN,
+ PMBUS_VIRT_READ_VOUT_MAX,
+ PMBUS_VIRT_RESET_VOUT_HISTORY,
+ PMBUS_VIRT_READ_IOUT_AVG,
+ PMBUS_VIRT_READ_IOUT_MIN,
+ PMBUS_VIRT_READ_IOUT_MAX,
+ PMBUS_VIRT_RESET_IOUT_HISTORY,
+ PMBUS_VIRT_READ_TEMP2_AVG,
+ PMBUS_VIRT_READ_TEMP2_MIN,
+ PMBUS_VIRT_READ_TEMP2_MAX,
+ PMBUS_VIRT_RESET_TEMP2_HISTORY,
+
+ PMBUS_VIRT_READ_VMON,
+ PMBUS_VIRT_VMON_UV_WARN_LIMIT,
+ PMBUS_VIRT_VMON_OV_WARN_LIMIT,
+ PMBUS_VIRT_VMON_UV_FAULT_LIMIT,
+ PMBUS_VIRT_VMON_OV_FAULT_LIMIT,
+ PMBUS_VIRT_STATUS_VMON,
+};
/*
* OPERATION
*/
-#define PB_OPERATION_CONTROL_ON (1<<7)
+#define PB_OPERATION_CONTROL_ON BIT(7)
/*
* CAPABILITY
*/
-#define PB_CAPABILITY_SMBALERT (1<<4)
-#define PB_CAPABILITY_ERROR_CHECK (1<<7)
+#define PB_CAPABILITY_SMBALERT BIT(4)
+#define PB_CAPABILITY_ERROR_CHECK BIT(7)
/*
* VOUT_MODE
@@ -211,94 +216,94 @@
/*
* Fan configuration
*/
-#define PB_FAN_2_PULSE_MASK ((1 << 0) | (1 << 1))
-#define PB_FAN_2_RPM (1 << 2)
-#define PB_FAN_2_INSTALLED (1 << 3)
-#define PB_FAN_1_PULSE_MASK ((1 << 4) | (1 << 5))
-#define PB_FAN_1_RPM (1 << 6)
-#define PB_FAN_1_INSTALLED (1 << 7)
+#define PB_FAN_2_PULSE_MASK (BIT(0) | BIT(1))
+#define PB_FAN_2_RPM BIT(2)
+#define PB_FAN_2_INSTALLED BIT(3)
+#define PB_FAN_1_PULSE_MASK (BIT(4) | BIT(5))
+#define PB_FAN_1_RPM BIT(6)
+#define PB_FAN_1_INSTALLED BIT(7)
/*
* STATUS_BYTE, STATUS_WORD (lower)
*/
-#define PB_STATUS_NONE_ABOVE (1<<0)
-#define PB_STATUS_CML (1<<1)
-#define PB_STATUS_TEMPERATURE (1<<2)
-#define PB_STATUS_VIN_UV (1<<3)
-#define PB_STATUS_IOUT_OC (1<<4)
-#define PB_STATUS_VOUT_OV (1<<5)
-#define PB_STATUS_OFF (1<<6)
-#define PB_STATUS_BUSY (1<<7)
+#define PB_STATUS_NONE_ABOVE BIT(0)
+#define PB_STATUS_CML BIT(1)
+#define PB_STATUS_TEMPERATURE BIT(2)
+#define PB_STATUS_VIN_UV BIT(3)
+#define PB_STATUS_IOUT_OC BIT(4)
+#define PB_STATUS_VOUT_OV BIT(5)
+#define PB_STATUS_OFF BIT(6)
+#define PB_STATUS_BUSY BIT(7)
/*
* STATUS_WORD (upper)
*/
-#define PB_STATUS_UNKNOWN (1<<8)
-#define PB_STATUS_OTHER (1<<9)
-#define PB_STATUS_FANS (1<<10)
-#define PB_STATUS_POWER_GOOD_N (1<<11)
-#define PB_STATUS_WORD_MFR (1<<12)
-#define PB_STATUS_INPUT (1<<13)
-#define PB_STATUS_IOUT_POUT (1<<14)
-#define PB_STATUS_VOUT (1<<15)
+#define PB_STATUS_UNKNOWN BIT(8)
+#define PB_STATUS_OTHER BIT(9)
+#define PB_STATUS_FANS BIT(10)
+#define PB_STATUS_POWER_GOOD_N BIT(11)
+#define PB_STATUS_WORD_MFR BIT(12)
+#define PB_STATUS_INPUT BIT(13)
+#define PB_STATUS_IOUT_POUT BIT(14)
+#define PB_STATUS_VOUT BIT(15)
/*
* STATUS_IOUT
*/
-#define PB_POUT_OP_WARNING (1<<0)
-#define PB_POUT_OP_FAULT (1<<1)
-#define PB_POWER_LIMITING (1<<2)
-#define PB_CURRENT_SHARE_FAULT (1<<3)
-#define PB_IOUT_UC_FAULT (1<<4)
-#define PB_IOUT_OC_WARNING (1<<5)
-#define PB_IOUT_OC_LV_FAULT (1<<6)
-#define PB_IOUT_OC_FAULT (1<<7)
+#define PB_POUT_OP_WARNING BIT(0)
+#define PB_POUT_OP_FAULT BIT(1)
+#define PB_POWER_LIMITING BIT(2)
+#define PB_CURRENT_SHARE_FAULT BIT(3)
+#define PB_IOUT_UC_FAULT BIT(4)
+#define PB_IOUT_OC_WARNING BIT(5)
+#define PB_IOUT_OC_LV_FAULT BIT(6)
+#define PB_IOUT_OC_FAULT BIT(7)
/*
* STATUS_VOUT, STATUS_INPUT
*/
-#define PB_VOLTAGE_UV_FAULT (1<<4)
-#define PB_VOLTAGE_UV_WARNING (1<<5)
-#define PB_VOLTAGE_OV_WARNING (1<<6)
-#define PB_VOLTAGE_OV_FAULT (1<<7)
+#define PB_VOLTAGE_UV_FAULT BIT(4)
+#define PB_VOLTAGE_UV_WARNING BIT(5)
+#define PB_VOLTAGE_OV_WARNING BIT(6)
+#define PB_VOLTAGE_OV_FAULT BIT(7)
/*
* STATUS_INPUT
*/
-#define PB_PIN_OP_WARNING (1<<0)
-#define PB_IIN_OC_WARNING (1<<1)
-#define PB_IIN_OC_FAULT (1<<2)
+#define PB_PIN_OP_WARNING BIT(0)
+#define PB_IIN_OC_WARNING BIT(1)
+#define PB_IIN_OC_FAULT BIT(2)
/*
* STATUS_TEMPERATURE
*/
-#define PB_TEMP_UT_FAULT (1<<4)
-#define PB_TEMP_UT_WARNING (1<<5)
-#define PB_TEMP_OT_WARNING (1<<6)
-#define PB_TEMP_OT_FAULT (1<<7)
+#define PB_TEMP_UT_FAULT BIT(4)
+#define PB_TEMP_UT_WARNING BIT(5)
+#define PB_TEMP_OT_WARNING BIT(6)
+#define PB_TEMP_OT_FAULT BIT(7)
/*
* STATUS_FAN
*/
-#define PB_FAN_AIRFLOW_WARNING (1<<0)
-#define PB_FAN_AIRFLOW_FAULT (1<<1)
-#define PB_FAN_FAN2_SPEED_OVERRIDE (1<<2)
-#define PB_FAN_FAN1_SPEED_OVERRIDE (1<<3)
-#define PB_FAN_FAN2_WARNING (1<<4)
-#define PB_FAN_FAN1_WARNING (1<<5)
-#define PB_FAN_FAN2_FAULT (1<<6)
-#define PB_FAN_FAN1_FAULT (1<<7)
+#define PB_FAN_AIRFLOW_WARNING BIT(0)
+#define PB_FAN_AIRFLOW_FAULT BIT(1)
+#define PB_FAN_FAN2_SPEED_OVERRIDE BIT(2)
+#define PB_FAN_FAN1_SPEED_OVERRIDE BIT(3)
+#define PB_FAN_FAN2_WARNING BIT(4)
+#define PB_FAN_FAN1_WARNING BIT(5)
+#define PB_FAN_FAN2_FAULT BIT(6)
+#define PB_FAN_FAN1_FAULT BIT(7)
/*
* CML_FAULT_STATUS
*/
-#define PB_CML_FAULT_OTHER_MEM_LOGIC (1<<0)
-#define PB_CML_FAULT_OTHER_COMM (1<<1)
-#define PB_CML_FAULT_PROCESSOR (1<<3)
-#define PB_CML_FAULT_MEMORY (1<<4)
-#define PB_CML_FAULT_PACKET_ERROR (1<<5)
-#define PB_CML_FAULT_INVALID_DATA (1<<6)
-#define PB_CML_FAULT_INVALID_COMMAND (1<<7)
+#define PB_CML_FAULT_OTHER_MEM_LOGIC BIT(0)
+#define PB_CML_FAULT_OTHER_COMM BIT(1)
+#define PB_CML_FAULT_PROCESSOR BIT(3)
+#define PB_CML_FAULT_MEMORY BIT(4)
+#define PB_CML_FAULT_PACKET_ERROR BIT(5)
+#define PB_CML_FAULT_INVALID_DATA BIT(6)
+#define PB_CML_FAULT_INVALID_COMMAND BIT(7)
enum pmbus_sensor_classes {
PSC_VOLTAGE_IN = 0,
@@ -314,32 +319,34 @@ enum pmbus_sensor_classes {
#define PMBUS_PAGES 32 /* Per PMBus specification */
/* Functionality bit mask */
-#define PMBUS_HAVE_VIN (1 << 0)
-#define PMBUS_HAVE_VCAP (1 << 1)
-#define PMBUS_HAVE_VOUT (1 << 2)
-#define PMBUS_HAVE_IIN (1 << 3)
-#define PMBUS_HAVE_IOUT (1 << 4)
-#define PMBUS_HAVE_PIN (1 << 5)
-#define PMBUS_HAVE_POUT (1 << 6)
-#define PMBUS_HAVE_FAN12 (1 << 7)
-#define PMBUS_HAVE_FAN34 (1 << 8)
-#define PMBUS_HAVE_TEMP (1 << 9)
-#define PMBUS_HAVE_TEMP2 (1 << 10)
-#define PMBUS_HAVE_TEMP3 (1 << 11)
-#define PMBUS_HAVE_STATUS_VOUT (1 << 12)
-#define PMBUS_HAVE_STATUS_IOUT (1 << 13)
-#define PMBUS_HAVE_STATUS_INPUT (1 << 14)
-#define PMBUS_HAVE_STATUS_TEMP (1 << 15)
-#define PMBUS_HAVE_STATUS_FAN12 (1 << 16)
-#define PMBUS_HAVE_STATUS_FAN34 (1 << 17)
-#define PMBUS_HAVE_VMON (1 << 18)
-#define PMBUS_HAVE_STATUS_VMON (1 << 19)
+#define PMBUS_HAVE_VIN BIT(0)
+#define PMBUS_HAVE_VCAP BIT(1)
+#define PMBUS_HAVE_VOUT BIT(2)
+#define PMBUS_HAVE_IIN BIT(3)
+#define PMBUS_HAVE_IOUT BIT(4)
+#define PMBUS_HAVE_PIN BIT(5)
+#define PMBUS_HAVE_POUT BIT(6)
+#define PMBUS_HAVE_FAN12 BIT(7)
+#define PMBUS_HAVE_FAN34 BIT(8)
+#define PMBUS_HAVE_TEMP BIT(9)
+#define PMBUS_HAVE_TEMP2 BIT(10)
+#define PMBUS_HAVE_TEMP3 BIT(11)
+#define PMBUS_HAVE_STATUS_VOUT BIT(12)
+#define PMBUS_HAVE_STATUS_IOUT BIT(13)
+#define PMBUS_HAVE_STATUS_INPUT BIT(14)
+#define PMBUS_HAVE_STATUS_TEMP BIT(15)
+#define PMBUS_HAVE_STATUS_FAN12 BIT(16)
+#define PMBUS_HAVE_STATUS_FAN34 BIT(17)
+#define PMBUS_HAVE_VMON BIT(18)
+#define PMBUS_HAVE_STATUS_VMON BIT(19)
enum pmbus_data_format { linear = 0, direct, vid };
+enum vrm_version { vr11 = 0, vr12 };
struct pmbus_driver_info {
int pages; /* Total number of pages */
enum pmbus_data_format format[PSC_NUM_CLASSES];
+ enum vrm_version vrm_version;
/*
* Support one set of coefficients for each sensor type
* Used for chips providing data in direct mode.
@@ -380,7 +387,7 @@ struct pmbus_driver_info {
/* Regulator ops */
-extern struct regulator_ops pmbus_regulator_ops;
+extern const struct regulator_ops pmbus_regulator_ops;
/* Macro for filling in array of struct regulator_desc */
#define PMBUS_REGULATOR(_name, _id) \
@@ -390,6 +397,7 @@ extern struct regulator_ops pmbus_regulator_ops;
.of_match = of_match_ptr(_name # _id), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &pmbus_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}
diff --git a/kernel/drivers/hwmon/pmbus/pmbus_core.c b/kernel/drivers/hwmon/pmbus/pmbus_core.c
index f2e47c7dd..ba59eaef2 100644
--- a/kernel/drivers/hwmon/pmbus/pmbus_core.c
+++ b/kernel/drivers/hwmon/pmbus/pmbus_core.c
@@ -515,16 +515,24 @@ static long pmbus_reg2data_direct(struct pmbus_data *data,
/*
* Convert VID sensor values to milli- or micro-units
* depending on sensor type.
- * We currently only support VR11.
*/
static long pmbus_reg2data_vid(struct pmbus_data *data,
struct pmbus_sensor *sensor)
{
long val = sensor->data;
+ long rv = 0;
- if (val < 0x02 || val > 0xb2)
- return 0;
- return DIV_ROUND_CLOSEST(160000 - (val - 2) * 625, 100);
+ switch (data->info->vrm_version) {
+ case vr11:
+ if (val >= 0x02 && val <= 0xb2)
+ rv = DIV_ROUND_CLOSEST(160000 - (val - 2) * 625, 100);
+ break;
+ case vr12:
+ if (val >= 0x01)
+ rv = 250 + (val - 1) * 5;
+ break;
+ }
+ return rv;
}
static long pmbus_reg2data(struct pmbus_data *data, struct pmbus_sensor *sensor)
@@ -1329,6 +1337,10 @@ static const struct pmbus_limit_attr pin_limit_attrs[] = {
.update = true,
.attr = "average",
}, {
+ .reg = PMBUS_VIRT_READ_PIN_MIN,
+ .update = true,
+ .attr = "input_lowest",
+ }, {
.reg = PMBUS_VIRT_READ_PIN_MAX,
.update = true,
.attr = "input_highest",
@@ -1359,6 +1371,10 @@ static const struct pmbus_limit_attr pout_limit_attrs[] = {
.update = true,
.attr = "average",
}, {
+ .reg = PMBUS_VIRT_READ_POUT_MIN,
+ .update = true,
+ .attr = "input_lowest",
+ }, {
.reg = PMBUS_VIRT_READ_POUT_MAX,
.update = true,
.attr = "input_highest",
@@ -1735,6 +1751,11 @@ static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data,
}
}
+ /* Enable PEC if the controller supports it */
+ ret = i2c_smbus_read_byte_data(client, PMBUS_CAPABILITY);
+ if (ret >= 0 && (ret & PB_CAPABILITY_ERROR_CHECK))
+ client->flags |= I2C_CLIENT_PEC;
+
pmbus_clear_faults(client);
if (info->identify) {
@@ -1796,7 +1817,7 @@ static int pmbus_regulator_disable(struct regulator_dev *rdev)
return _pmbus_regulator_on_off(rdev, 0);
}
-struct regulator_ops pmbus_regulator_ops = {
+const struct regulator_ops pmbus_regulator_ops = {
.enable = pmbus_regulator_enable,
.disable = pmbus_regulator_disable,
.is_enabled = pmbus_regulator_is_enabled,
diff --git a/kernel/drivers/hwmon/pmbus/zl6100.c b/kernel/drivers/hwmon/pmbus/zl6100.c
index 819644121..771802d7e 100644
--- a/kernel/drivers/hwmon/pmbus/zl6100.c
+++ b/kernel/drivers/hwmon/pmbus/zl6100.c
@@ -19,6 +19,7 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -44,16 +45,16 @@ struct zl6100_data {
#define ZL6100_MFR_CONFIG 0xd0
#define ZL6100_DEVICE_ID 0xe4
-#define ZL6100_MFR_XTEMP_ENABLE (1 << 7)
+#define ZL6100_MFR_XTEMP_ENABLE BIT(7)
#define MFR_VMON_OV_FAULT_LIMIT 0xf5
#define MFR_VMON_UV_FAULT_LIMIT 0xf6
#define MFR_READ_VMON 0xf7
-#define VMON_UV_WARNING (1 << 5)
-#define VMON_OV_WARNING (1 << 4)
-#define VMON_UV_FAULT (1 << 1)
-#define VMON_OV_FAULT (1 << 0)
+#define VMON_UV_WARNING BIT(5)
+#define VMON_OV_WARNING BIT(4)
+#define VMON_UV_FAULT BIT(1)
+#define VMON_OV_FAULT BIT(0)
#define ZL6100_WAIT_TIME 1000 /* uS */
diff --git a/kernel/drivers/hwmon/pwm-fan.c b/kernel/drivers/hwmon/pwm-fan.c
index 2d9a71269..3e23003f7 100644
--- a/kernel/drivers/hwmon/pwm-fan.c
+++ b/kernel/drivers/hwmon/pwm-fan.c
@@ -323,6 +323,7 @@ static const struct of_device_id of_pwm_fan_match[] = {
{ .compatible = "pwm-fan", },
{},
};
+MODULE_DEVICE_TABLE(of, of_pwm_fan_match);
static struct platform_driver pwm_fan_driver = {
.probe = pwm_fan_probe,
diff --git a/kernel/drivers/hwmon/scpi-hwmon.c b/kernel/drivers/hwmon/scpi-hwmon.c
new file mode 100644
index 000000000..7e20567bc
--- /dev/null
+++ b/kernel/drivers/hwmon/scpi-hwmon.c
@@ -0,0 +1,289 @@
+/*
+ * System Control and Power Interface(SCPI) based hwmon sensor driver
+ *
+ * Copyright (C) 2015 ARM Ltd.
+ * Punit Agrawal <punit.agrawal@arm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/hwmon.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/scpi_protocol.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/thermal.h>
+
+struct sensor_data {
+ struct scpi_sensor_info info;
+ struct device_attribute dev_attr_input;
+ struct device_attribute dev_attr_label;
+ char input[20];
+ char label[20];
+};
+
+struct scpi_thermal_zone {
+ struct list_head list;
+ int sensor_id;
+ struct scpi_sensors *scpi_sensors;
+ struct thermal_zone_device *tzd;
+};
+
+struct scpi_sensors {
+ struct scpi_ops *scpi_ops;
+ struct sensor_data *data;
+ struct list_head thermal_zones;
+ struct attribute **attrs;
+ struct attribute_group group;
+ const struct attribute_group *groups[2];
+};
+
+static int scpi_read_temp(void *dev, int *temp)
+{
+ struct scpi_thermal_zone *zone = dev;
+ struct scpi_sensors *scpi_sensors = zone->scpi_sensors;
+ struct scpi_ops *scpi_ops = scpi_sensors->scpi_ops;
+ struct sensor_data *sensor = &scpi_sensors->data[zone->sensor_id];
+ u32 value;
+ int ret;
+
+ ret = scpi_ops->sensor_get_value(sensor->info.sensor_id, &value);
+ if (ret)
+ return ret;
+
+ *temp = value;
+ return 0;
+}
+
+/* hwmon callback functions */
+static ssize_t
+scpi_show_sensor(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct scpi_sensors *scpi_sensors = dev_get_drvdata(dev);
+ struct scpi_ops *scpi_ops = scpi_sensors->scpi_ops;
+ struct sensor_data *sensor;
+ u32 value;
+ int ret;
+
+ sensor = container_of(attr, struct sensor_data, dev_attr_input);
+
+ ret = scpi_ops->sensor_get_value(sensor->info.sensor_id, &value);
+ if (ret)
+ return ret;
+
+ return sprintf(buf, "%u\n", value);
+}
+
+static ssize_t
+scpi_show_label(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_data *sensor;
+
+ sensor = container_of(attr, struct sensor_data, dev_attr_label);
+
+ return sprintf(buf, "%s\n", sensor->info.name);
+}
+
+static void
+unregister_thermal_zones(struct platform_device *pdev,
+ struct scpi_sensors *scpi_sensors)
+{
+ struct list_head *pos;
+
+ list_for_each(pos, &scpi_sensors->thermal_zones) {
+ struct scpi_thermal_zone *zone;
+
+ zone = list_entry(pos, struct scpi_thermal_zone, list);
+ thermal_zone_of_sensor_unregister(&pdev->dev, zone->tzd);
+ }
+}
+
+static struct thermal_zone_of_device_ops scpi_sensor_ops = {
+ .get_temp = scpi_read_temp,
+};
+
+static int scpi_hwmon_probe(struct platform_device *pdev)
+{
+ u16 nr_sensors, i;
+ int num_temp = 0, num_volt = 0, num_current = 0, num_power = 0;
+ struct scpi_ops *scpi_ops;
+ struct device *hwdev, *dev = &pdev->dev;
+ struct scpi_sensors *scpi_sensors;
+ int ret, idx;
+
+ scpi_ops = get_scpi_ops();
+ if (!scpi_ops)
+ return -EPROBE_DEFER;
+
+ ret = scpi_ops->sensor_get_capability(&nr_sensors);
+ if (ret)
+ return ret;
+
+ if (!nr_sensors)
+ return -ENODEV;
+
+ scpi_sensors = devm_kzalloc(dev, sizeof(*scpi_sensors), GFP_KERNEL);
+ if (!scpi_sensors)
+ return -ENOMEM;
+
+ scpi_sensors->data = devm_kcalloc(dev, nr_sensors,
+ sizeof(*scpi_sensors->data), GFP_KERNEL);
+ if (!scpi_sensors->data)
+ return -ENOMEM;
+
+ scpi_sensors->attrs = devm_kcalloc(dev, (nr_sensors * 2) + 1,
+ sizeof(*scpi_sensors->attrs), GFP_KERNEL);
+ if (!scpi_sensors->attrs)
+ return -ENOMEM;
+
+ scpi_sensors->scpi_ops = scpi_ops;
+
+ for (i = 0, idx = 0; i < nr_sensors; i++) {
+ struct sensor_data *sensor = &scpi_sensors->data[idx];
+
+ ret = scpi_ops->sensor_get_info(i, &sensor->info);
+ if (ret)
+ return ret;
+
+ switch (sensor->info.class) {
+ case TEMPERATURE:
+ snprintf(sensor->input, sizeof(sensor->input),
+ "temp%d_input", num_temp + 1);
+ snprintf(sensor->label, sizeof(sensor->input),
+ "temp%d_label", num_temp + 1);
+ num_temp++;
+ break;
+ case VOLTAGE:
+ snprintf(sensor->input, sizeof(sensor->input),
+ "in%d_input", num_volt);
+ snprintf(sensor->label, sizeof(sensor->input),
+ "in%d_label", num_volt);
+ num_volt++;
+ break;
+ case CURRENT:
+ snprintf(sensor->input, sizeof(sensor->input),
+ "curr%d_input", num_current + 1);
+ snprintf(sensor->label, sizeof(sensor->input),
+ "curr%d_label", num_current + 1);
+ num_current++;
+ break;
+ case POWER:
+ snprintf(sensor->input, sizeof(sensor->input),
+ "power%d_input", num_power + 1);
+ snprintf(sensor->label, sizeof(sensor->input),
+ "power%d_label", num_power + 1);
+ num_power++;
+ break;
+ default:
+ continue;
+ }
+
+ sensor->dev_attr_input.attr.mode = S_IRUGO;
+ sensor->dev_attr_input.show = scpi_show_sensor;
+ sensor->dev_attr_input.attr.name = sensor->input;
+
+ sensor->dev_attr_label.attr.mode = S_IRUGO;
+ sensor->dev_attr_label.show = scpi_show_label;
+ sensor->dev_attr_label.attr.name = sensor->label;
+
+ scpi_sensors->attrs[idx << 1] = &sensor->dev_attr_input.attr;
+ scpi_sensors->attrs[(idx << 1) + 1] = &sensor->dev_attr_label.attr;
+
+ sysfs_attr_init(scpi_sensors->attrs[idx << 1]);
+ sysfs_attr_init(scpi_sensors->attrs[(idx << 1) + 1]);
+ idx++;
+ }
+
+ scpi_sensors->group.attrs = scpi_sensors->attrs;
+ scpi_sensors->groups[0] = &scpi_sensors->group;
+
+ platform_set_drvdata(pdev, scpi_sensors);
+
+ hwdev = devm_hwmon_device_register_with_groups(dev,
+ "scpi_sensors", scpi_sensors, scpi_sensors->groups);
+
+ if (IS_ERR(hwdev))
+ return PTR_ERR(hwdev);
+
+ /*
+ * Register the temperature sensors with the thermal framework
+ * to allow their usage in setting up the thermal zones from
+ * device tree.
+ *
+ * NOTE: Not all temperature sensors maybe used for thermal
+ * control
+ */
+ INIT_LIST_HEAD(&scpi_sensors->thermal_zones);
+ for (i = 0; i < nr_sensors; i++) {
+ struct sensor_data *sensor = &scpi_sensors->data[i];
+ struct scpi_thermal_zone *zone;
+
+ if (sensor->info.class != TEMPERATURE)
+ continue;
+
+ zone = devm_kzalloc(dev, sizeof(*zone), GFP_KERNEL);
+ if (!zone) {
+ ret = -ENOMEM;
+ goto unregister_tzd;
+ }
+
+ zone->sensor_id = i;
+ zone->scpi_sensors = scpi_sensors;
+ zone->tzd = thermal_zone_of_sensor_register(dev,
+ sensor->info.sensor_id, zone, &scpi_sensor_ops);
+ /*
+ * The call to thermal_zone_of_sensor_register returns
+ * an error for sensors that are not associated with
+ * any thermal zones or if the thermal subsystem is
+ * not configured.
+ */
+ if (IS_ERR(zone->tzd)) {
+ devm_kfree(dev, zone);
+ continue;
+ }
+ list_add(&zone->list, &scpi_sensors->thermal_zones);
+ }
+
+ return 0;
+
+unregister_tzd:
+ unregister_thermal_zones(pdev, scpi_sensors);
+ return ret;
+}
+
+static int scpi_hwmon_remove(struct platform_device *pdev)
+{
+ struct scpi_sensors *scpi_sensors = platform_get_drvdata(pdev);
+
+ unregister_thermal_zones(pdev, scpi_sensors);
+
+ return 0;
+}
+
+static const struct of_device_id scpi_of_match[] = {
+ {.compatible = "arm,scpi-sensors"},
+ {},
+};
+
+static struct platform_driver scpi_hwmon_platdrv = {
+ .driver = {
+ .name = "scpi-hwmon",
+ .owner = THIS_MODULE,
+ .of_match_table = scpi_of_match,
+ },
+ .probe = scpi_hwmon_probe,
+ .remove = scpi_hwmon_remove,
+};
+module_platform_driver(scpi_hwmon_platdrv);
+
+MODULE_AUTHOR("Punit Agrawal <punit.agrawal@arm.com>");
+MODULE_DESCRIPTION("ARM SCPI HWMON interface driver");
+MODULE_LICENSE("GPL v2");
diff --git a/kernel/drivers/hwmon/sht15.c b/kernel/drivers/hwmon/sht15.c
index d4f0935da..a2fdbb7d2 100644
--- a/kernel/drivers/hwmon/sht15.c
+++ b/kernel/drivers/hwmon/sht15.c
@@ -33,6 +33,7 @@
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/atomic.h>
+#include <linux/bitrev.h>
/* Commands */
#define SHT15_MEASURE_TEMP 0x03
@@ -173,19 +174,6 @@ struct sht15_data {
};
/**
- * sht15_reverse() - reverse a byte
- * @byte: byte to reverse.
- */
-static u8 sht15_reverse(u8 byte)
-{
- u8 i, c;
-
- for (c = 0, i = 0; i < 8; i++)
- c |= (!!(byte & (1 << i))) << (7 - i);
- return c;
-}
-
-/**
* sht15_crc8() - compute crc8
* @data: sht15 specific data.
* @value: sht15 retrieved data.
@@ -196,7 +184,7 @@ static u8 sht15_crc8(struct sht15_data *data,
const u8 *value,
int len)
{
- u8 crc = sht15_reverse(data->val_status & 0x0F);
+ u8 crc = bitrev8(data->val_status & 0x0F);
while (len--) {
crc = sht15_crc8_table[*value ^ crc];
@@ -477,7 +465,7 @@ static int sht15_update_status(struct sht15_data *data)
if (data->checksumming) {
sht15_ack(data);
- dev_checksum = sht15_reverse(sht15_read_byte(data));
+ dev_checksum = bitrev8(sht15_read_byte(data));
checksum_vals[0] = SHT15_READ_STATUS;
checksum_vals[1] = status;
data->checksum_ok = (sht15_crc8(data, checksum_vals, 2)
@@ -864,7 +852,7 @@ static void sht15_bh_read_data(struct work_struct *work_s)
*/
if (sht15_ack(data))
goto wakeup;
- dev_checksum = sht15_reverse(sht15_read_byte(data));
+ dev_checksum = bitrev8(sht15_read_byte(data));
checksum_vals[0] = (data->state == SHT15_READING_TEMP) ?
SHT15_MEASURE_TEMP : SHT15_MEASURE_RH;
checksum_vals[1] = (u8) (val >> 8);
@@ -1074,7 +1062,7 @@ static int sht15_remove(struct platform_device *pdev)
return 0;
}
-static struct platform_device_id sht15_device_ids[] = {
+static const struct platform_device_id sht15_device_ids[] = {
{ "sht10", sht10 },
{ "sht11", sht11 },
{ "sht15", sht15 },
diff --git a/kernel/drivers/hwmon/tc74.c b/kernel/drivers/hwmon/tc74.c
new file mode 100644
index 000000000..d95165158
--- /dev/null
+++ b/kernel/drivers/hwmon/tc74.c
@@ -0,0 +1,177 @@
+/*
+ * An hwmon driver for the Microchip TC74
+ *
+ * Copyright 2015 Maciej Szmigiero <mail@maciej.szmigiero.name>
+ *
+ * Based on ad7414.c:
+ * Copyright 2006 Stefan Roese, DENX Software Engineering
+ * Copyright 2008 Sean MacLennan, PIKA Technologies
+ * Copyright 2008 Frank Edelhaeuser, Spansion Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/i2c.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+
+/* TC74 registers */
+#define TC74_REG_TEMP 0x00
+#define TC74_REG_CONFIG 0x01
+
+struct tc74_data {
+ struct i2c_client *client;
+ struct mutex lock; /* atomic read data updates */
+ bool valid; /* validity of fields below */
+ unsigned long next_update; /* In jiffies */
+ s8 temp_input; /* Temp value in dC */
+};
+
+static int tc74_update_device(struct device *dev)
+{
+ struct tc74_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ int ret;
+
+ ret = mutex_lock_interruptible(&data->lock);
+ if (ret)
+ return ret;
+
+ if (time_after(jiffies, data->next_update) || !data->valid) {
+ s32 value;
+
+ value = i2c_smbus_read_byte_data(client, TC74_REG_CONFIG);
+ if (value < 0) {
+ dev_dbg(&client->dev, "TC74_REG_CONFIG read err %d\n",
+ (int)value);
+
+ ret = value;
+ goto ret_unlock;
+ }
+
+ if (!(value & BIT(6))) {
+ /* not ready yet */
+
+ ret = -EAGAIN;
+ goto ret_unlock;
+ }
+
+ value = i2c_smbus_read_byte_data(client, TC74_REG_TEMP);
+ if (value < 0) {
+ dev_dbg(&client->dev, "TC74_REG_TEMP read err %d\n",
+ (int)value);
+
+ ret = value;
+ goto ret_unlock;
+ }
+
+ data->temp_input = value;
+ data->next_update = jiffies + HZ / 4;
+ data->valid = true;
+ }
+
+ret_unlock:
+ mutex_unlock(&data->lock);
+
+ return ret;
+}
+
+static ssize_t show_temp_input(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct tc74_data *data = dev_get_drvdata(dev);
+ int ret;
+
+ ret = tc74_update_device(dev);
+ if (ret)
+ return ret;
+
+ return sprintf(buf, "%d\n", data->temp_input * 1000);
+}
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0);
+
+static struct attribute *tc74_attrs[] = {
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ NULL
+};
+
+ATTRIBUTE_GROUPS(tc74);
+
+static int tc74_probe(struct i2c_client *client,
+ const struct i2c_device_id *dev_id)
+{
+ struct device *dev = &client->dev;
+ struct tc74_data *data;
+ struct device *hwmon_dev;
+ s32 conf;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EOPNOTSUPP;
+
+ data = devm_kzalloc(dev, sizeof(struct tc74_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->client = client;
+ mutex_init(&data->lock);
+
+ /* Make sure the chip is powered up. */
+ conf = i2c_smbus_read_byte_data(client, TC74_REG_CONFIG);
+ if (conf < 0) {
+ dev_err(dev, "unable to read config register\n");
+
+ return conf;
+ }
+
+ if (conf & 0x3f) {
+ dev_err(dev, "invalid config register value\n");
+
+ return -ENODEV;
+ }
+
+ if (conf & BIT(7)) {
+ s32 ret;
+
+ conf &= ~BIT(7);
+
+ ret = i2c_smbus_write_byte_data(client, TC74_REG_CONFIG, conf);
+ if (ret)
+ dev_warn(dev, "unable to disable STANDBY\n");
+ }
+
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev,
+ client->name,
+ data, tc74_groups);
+ return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+static const struct i2c_device_id tc74_id[] = {
+ { "tc74", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, tc74_id);
+
+static struct i2c_driver tc74_driver = {
+ .driver = {
+ .name = "tc74",
+ },
+ .probe = tc74_probe,
+ .id_table = tc74_id,
+};
+
+module_i2c_driver(tc74_driver);
+
+MODULE_AUTHOR("Maciej Szmigiero <mail@maciej.szmigiero.name>");
+
+MODULE_DESCRIPTION("TC74 driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/hwmon/tmp102.c b/kernel/drivers/hwmon/tmp102.c
index 9da2735f1..5289aa098 100644
--- a/kernel/drivers/hwmon/tmp102.c
+++ b/kernel/drivers/hwmon/tmp102.c
@@ -58,6 +58,7 @@ struct tmp102 {
u16 config_orig;
unsigned long last_update;
int temp[3];
+ bool first_time;
};
/* convert left adjusted 13-bit TMP102 register value to milliCelsius */
@@ -93,15 +94,22 @@ static struct tmp102 *tmp102_update_device(struct device *dev)
tmp102->temp[i] = tmp102_reg_to_mC(status);
}
tmp102->last_update = jiffies;
+ tmp102->first_time = false;
}
mutex_unlock(&tmp102->lock);
return tmp102;
}
-static int tmp102_read_temp(void *dev, long *temp)
+static int tmp102_read_temp(void *dev, int *temp)
{
struct tmp102 *tmp102 = tmp102_update_device(dev);
+ /* Is it too early even to return a conversion? */
+ if (tmp102->first_time) {
+ dev_dbg(dev, "%s: Conversion not ready yet..\n", __func__);
+ return -EAGAIN;
+ }
+
*temp = tmp102->temp[0];
return 0;
@@ -114,6 +122,10 @@ static ssize_t tmp102_show_temp(struct device *dev,
struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
struct tmp102 *tmp102 = tmp102_update_device(dev);
+ /* Is it too early even to return a read? */
+ if (tmp102->first_time)
+ return -EAGAIN;
+
return sprintf(buf, "%d\n", tmp102->temp[sda->index]);
}
@@ -207,7 +219,9 @@ static int tmp102_probe(struct i2c_client *client,
status = -ENODEV;
goto fail_restore_config;
}
- tmp102->last_update = jiffies - HZ;
+ tmp102->last_update = jiffies;
+ /* Mark that we are not ready with data until conversion is complete */
+ tmp102->first_time = true;
mutex_init(&tmp102->lock);
hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
diff --git a/kernel/drivers/hwmon/w83627ehf.c b/kernel/drivers/hwmon/w83627ehf.c
index b10353b31..697007afb 100644
--- a/kernel/drivers/hwmon/w83627ehf.c
+++ b/kernel/drivers/hwmon/w83627ehf.c
@@ -1937,27 +1937,11 @@ static inline void w83627ehf_init_device(struct w83627ehf_data *data,
static void w82627ehf_swap_tempreg(struct w83627ehf_data *data,
int r1, int r2)
{
- u16 tmp;
-
- tmp = data->temp_src[r1];
- data->temp_src[r1] = data->temp_src[r2];
- data->temp_src[r2] = tmp;
-
- tmp = data->reg_temp[r1];
- data->reg_temp[r1] = data->reg_temp[r2];
- data->reg_temp[r2] = tmp;
-
- tmp = data->reg_temp_over[r1];
- data->reg_temp_over[r1] = data->reg_temp_over[r2];
- data->reg_temp_over[r2] = tmp;
-
- tmp = data->reg_temp_hyst[r1];
- data->reg_temp_hyst[r1] = data->reg_temp_hyst[r2];
- data->reg_temp_hyst[r2] = tmp;
-
- tmp = data->reg_temp_config[r1];
- data->reg_temp_config[r1] = data->reg_temp_config[r2];
- data->reg_temp_config[r2] = tmp;
+ swap(data->temp_src[r1], data->temp_src[r2]);
+ swap(data->reg_temp[r1], data->reg_temp[r2]);
+ swap(data->reg_temp_over[r1], data->reg_temp_over[r2]);
+ swap(data->reg_temp_hyst[r1], data->reg_temp_hyst[r2]);
+ swap(data->reg_temp_config[r1], data->reg_temp_config[r2]);
}
static void
diff --git a/kernel/drivers/hwmon/w83792d.c b/kernel/drivers/hwmon/w83792d.c
index 4068db4d9..0a8bce726 100644
--- a/kernel/drivers/hwmon/w83792d.c
+++ b/kernel/drivers/hwmon/w83792d.c
@@ -289,10 +289,7 @@ struct w83792d_data {
u8 temp1[3]; /* current, over, thyst */
u8 temp_add[2][6]; /* Register value */
u8 fan_div[7]; /* Register encoding, shifted right */
- u8 pwm[7]; /*
- * We only consider the first 3 set of pwm,
- * although 792 chip has 7 set of pwm.
- */
+ u8 pwm[7]; /* The 7 PWM outputs */
u8 pwmenable[3];
u32 alarms; /* realtime status register encoding,combined */
u8 chassis; /* Chassis status */
@@ -1075,6 +1072,10 @@ static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3);
+static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4);
+static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5);
+static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6);
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
show_pwmenable, store_pwmenable, 1);
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
@@ -1087,6 +1088,14 @@ static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
show_pwm_mode, store_pwm_mode, 1);
static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
show_pwm_mode, store_pwm_mode, 2);
+static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 3);
+static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 4);
+static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 5);
+static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 6);
static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
show_tolerance, store_tolerance, 1);
static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
@@ -1177,30 +1186,38 @@ static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
show_fan_div, store_fan_div, 7);
-static struct attribute *w83792d_attributes_fan[4][5] = {
+static struct attribute *w83792d_attributes_fan[4][7] = {
{
&sensor_dev_attr_fan4_input.dev_attr.attr,
&sensor_dev_attr_fan4_min.dev_attr.attr,
&sensor_dev_attr_fan4_div.dev_attr.attr,
&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+ &sensor_dev_attr_pwm4.dev_attr.attr,
+ &sensor_dev_attr_pwm4_mode.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_fan5_input.dev_attr.attr,
&sensor_dev_attr_fan5_min.dev_attr.attr,
&sensor_dev_attr_fan5_div.dev_attr.attr,
&sensor_dev_attr_fan5_alarm.dev_attr.attr,
+ &sensor_dev_attr_pwm5.dev_attr.attr,
+ &sensor_dev_attr_pwm5_mode.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_fan6_input.dev_attr.attr,
&sensor_dev_attr_fan6_min.dev_attr.attr,
&sensor_dev_attr_fan6_div.dev_attr.attr,
&sensor_dev_attr_fan6_alarm.dev_attr.attr,
+ &sensor_dev_attr_pwm6.dev_attr.attr,
+ &sensor_dev_attr_pwm6_mode.dev_attr.attr,
NULL
}, {
&sensor_dev_attr_fan7_input.dev_attr.attr,
&sensor_dev_attr_fan7_min.dev_attr.attr,
&sensor_dev_attr_fan7_div.dev_attr.attr,
&sensor_dev_attr_fan7_alarm.dev_attr.attr,
+ &sensor_dev_attr_pwm7.dev_attr.attr,
+ &sensor_dev_attr_pwm7_mode.dev_attr.attr,
NULL
}
};