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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/hwmon/adt7410.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/hwmon/adt7410.c')
-rw-r--r--kernel/drivers/hwmon/adt7410.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/kernel/drivers/hwmon/adt7410.c b/kernel/drivers/hwmon/adt7410.c
new file mode 100644
index 000000000..0dc066a93
--- /dev/null
+++ b/kernel/drivers/hwmon/adt7410.c
@@ -0,0 +1,80 @@
+/*
+ * ADT7410/ADT7420 digital temperature sensor driver
+ *
+ * Copyright 2012-2013 Analog Devices Inc.
+ * Author: Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+
+#include "adt7x10.h"
+
+static int adt7410_i2c_read_word(struct device *dev, u8 reg)
+{
+ return i2c_smbus_read_word_swapped(to_i2c_client(dev), reg);
+}
+
+static int adt7410_i2c_write_word(struct device *dev, u8 reg, u16 data)
+{
+ return i2c_smbus_write_word_swapped(to_i2c_client(dev), reg, data);
+}
+
+static int adt7410_i2c_read_byte(struct device *dev, u8 reg)
+{
+ return i2c_smbus_read_byte_data(to_i2c_client(dev), reg);
+}
+
+static int adt7410_i2c_write_byte(struct device *dev, u8 reg, u8 data)
+{
+ return i2c_smbus_write_byte_data(to_i2c_client(dev), reg, data);
+}
+
+static const struct adt7x10_ops adt7410_i2c_ops = {
+ .read_word = adt7410_i2c_read_word,
+ .write_word = adt7410_i2c_write_word,
+ .read_byte = adt7410_i2c_read_byte,
+ .write_byte = adt7410_i2c_write_byte,
+};
+
+static int adt7410_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
+ return -ENODEV;
+
+ return adt7x10_probe(&client->dev, NULL, client->irq, &adt7410_i2c_ops);
+}
+
+static int adt7410_i2c_remove(struct i2c_client *client)
+{
+ return adt7x10_remove(&client->dev, client->irq);
+}
+
+static const struct i2c_device_id adt7410_ids[] = {
+ { "adt7410", 0 },
+ { "adt7420", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, adt7410_ids);
+
+static struct i2c_driver adt7410_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "adt7410",
+ .pm = ADT7X10_DEV_PM_OPS,
+ },
+ .probe = adt7410_i2c_probe,
+ .remove = adt7410_i2c_remove,
+ .id_table = adt7410_ids,
+ .address_list = I2C_ADDRS(0x48, 0x49, 0x4a, 0x4b),
+};
+module_i2c_driver(adt7410_driver);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("ADT7410/AD7420 driver");
+MODULE_LICENSE("GPL");