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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/include/linux/mfd/max14577.h
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/include/linux/mfd/max14577.h')
-rw-r--r--kernel/include/linux/mfd/max14577.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/kernel/include/linux/mfd/max14577.h b/kernel/include/linux/mfd/max14577.h
new file mode 100644
index 000000000..ccfaf952c
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+++ b/kernel/include/linux/mfd/max14577.h
@@ -0,0 +1,107 @@
+/*
+ * max14577.h - Driver for the Maxim 14577/77836
+ *
+ * Copyright (C) 2014 Samsung Electrnoics
+ * Chanwoo Choi <cw00.choi@samsung.com>
+ * Krzysztof Kozlowski <k.kozlowski@samsung.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.
+ *
+ * This driver is based on max8997.h
+ *
+ * MAX14577 has MUIC, Charger devices.
+ * The devices share the same I2C bus and interrupt line
+ * included in this mfd driver.
+ *
+ * MAX77836 has additional PMIC and Fuel-Gauge on different I2C slave
+ * addresses.
+ */
+
+#ifndef __MAX14577_H__
+#define __MAX14577_H__
+
+#include <linux/regulator/consumer.h>
+
+/* MAX14577 regulator IDs */
+enum max14577_regulators {
+ MAX14577_SAFEOUT = 0,
+ MAX14577_CHARGER,
+
+ MAX14577_REGULATOR_NUM,
+};
+
+/* MAX77836 regulator IDs */
+enum max77836_regulators {
+ MAX77836_SAFEOUT = 0,
+ MAX77836_CHARGER,
+ MAX77836_LDO1,
+ MAX77836_LDO2,
+
+ MAX77836_REGULATOR_NUM,
+};
+
+struct max14577_regulator_platform_data {
+ int id;
+ struct regulator_init_data *initdata;
+ struct device_node *of_node;
+};
+
+struct max14577_charger_platform_data {
+ u32 constant_uvolt;
+ u32 fast_charge_uamp;
+ u32 eoc_uamp;
+ u32 ovp_uvolt;
+};
+
+/*
+ * MAX14577 MFD platform data
+ */
+struct max14577_platform_data {
+ /* IRQ */
+ int irq_base;
+
+ /* current control GPIOs */
+ int gpio_pogo_vbatt_en;
+ int gpio_pogo_vbus_en;
+
+ /* current control GPIO control function */
+ int (*set_gpio_pogo_vbatt_en) (int gpio_val);
+ int (*set_gpio_pogo_vbus_en) (int gpio_val);
+
+ int (*set_gpio_pogo_cb) (int new_dev);
+
+ struct max14577_regulator_platform_data *regulators;
+};
+
+/*
+ * Valid limits of current for max14577 and max77836 chargers.
+ * They must correspond to MBCICHWRCL and MBCICHWRCH fields in CHGCTRL4
+ * register for given chipset.
+ */
+struct maxim_charger_current {
+ /* Minimal current, set in CHGCTRL4/MBCICHWRCL, uA */
+ unsigned int min;
+ /*
+ * Minimal current when high setting is active,
+ * set in CHGCTRL4/MBCICHWRCH, uA
+ */
+ unsigned int high_start;
+ /* Value of one step in high setting, uA */
+ unsigned int high_step;
+ /* Maximum current of high setting, uA */
+ unsigned int max;
+};
+
+extern const struct maxim_charger_current maxim_charger_currents[];
+extern int maxim_charger_calc_reg_current(const struct maxim_charger_current *limits,
+ unsigned int min_ua, unsigned int max_ua, u8 *dst);
+
+#endif /* __MAX14577_H__ */