Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / mfd / max14577.h

diff --git a/kernel/include/linux/mfd/max14577.h b/kernel/include/linux/mfd/max14577.h
new file mode 100644 (file)
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--- /dev/null
+++ b/kernel/include/linux/mfd/max14577.h
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+/*
+ * 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__ */