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Commit a91d2f8d authored by Gyungoh Yoo's avatar Gyungoh Yoo Committed by Samuel Ortiz
Browse files

mfd: Add MAX8907 core driver 



The MAX8907 is an I2C-based power-management IC containing voltage
regulators, a reset controller, a real-time clock, and a touch-screen
controller.

The original driver was written by:
* Gyungoh Yoo <jack.yoo@maxim-ic.com>

Various fixes and enhancements by:
* Jin Park <jinyoungp@nvidia.com>
* Tom Cherry <tcherry@nvidia.com>
* Prashant Gaikwad <pgaikwad@nvidia.com>
* Dan Willemsen <dwillemsen@nvidia.com>
* Laxman Dewangan <ldewangan@nvidia.com>

During upstreaming, I (swarren):
* Converted to regmap.
* Converted to regmap-irq.
* Allowed probing from device tree.
* Renamed from max8907c->max8907, since the driver covers at least the
  C and B revisions.
* General cleanup.

Signed-off-by: default avatarGyungoh Yoo <jack.yoo@maxim-ic.com>
Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> #v3
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 7fb9c1a4

Documentation/devicetree/bindings/regulator/max8907.txt

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MAX8907 regulator



Required properties:

- compatible: "maxim,max8907"

- reg: I2C slave address

- interrupts: The interrupt output of the controller

- mbatt-supply: The input supply for MBATT, BBAT, SDBY, VRTC.

- in-v1-supply: The input supply for SD1.

- in-v2-supply: The input supply for SD2.

- in-v3-supply: The input supply for SD3.

- in1-supply: The input supply for LDO1.

...

- in20-supply: The input supply for LDO20.

- regulators: A node that houses a sub-node for each regulator within the

  device. Each sub-node is identified using the regulator-compatible

  property, with valid values listed below. The content of each sub-node

  is defined by the standard binding for regulators; see regulator.txt.



Valid regulator-compatible values are:



  sd1, sd2, sd3, ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, ldo8, ldo9, ldo10,

  ldo11, ldo12, ldo13, ldo14, ldo15, ldo16, ldo17, ldo18, ldo19, ldo20, out5v,

  out33v, bbat, sdby, vrtc.



Example:



		max8907@3c {

			compatible = "maxim,max8907";

			reg = <0x3c>;

			interrupts = <0 86 0x4>;



			mbatt-supply = <&some_reg>;

			in-v1-supply = <&mbatt_reg>;

			...

			in1-supply = <&mbatt_reg>;

			...



			regulators {

				#address-cells = <1>;

				#size-cells = <0>;



				mbatt_reg: regulator@0 {

					reg = <0>;

					regulator-compatible = "mbatt";

					regulator-name = "vbat_pmu";

					regulator-min-microvolt = <5000000>;

					regulator-max-microvolt = <5000000>;

					regulator-always-on;

				};



				regulator@1 {

					reg = <1>;

					regulator-compatible = "sd1";

					regulator-name = "nvvdd_sv1,vdd_cpu_pmu";

					regulator-min-microvolt = <1000000>;

					regulator-max-microvolt = <1000000>;

					regulator-always-on;

				};



				regulator@2 {

					reg = <2>;

					regulator-compatible = "sd2";

					regulator-name = "nvvdd_sv2,vdd_core";

					regulator-min-microvolt = <1200000>;

					regulator-max-microvolt = <1200000>;

					regulator-always-on;

				};

...

			};

		};

	};

drivers/mfd/Kconfig

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@@ -476,6 +476,18 @@ config MFD_MAX77693 
	  additional drivers must be enabled in order to use the functionality

	  of the device.



config MFD_MAX8907

	tristate "Maxim Semiconductor MAX8907 PMIC Support"

	select MFD_CORE

	depends on I2C=y && GENERIC_HARDIRQS

	select REGMAP_I2C

	select REGMAP_IRQ

	help

	  Say yes here to support for Maxim Semiconductor MAX8907. This is

	  a Power Management IC. This driver provides common support for

	  accessing the device; additional drivers must be enabled in order

	  to use the functionality of the device.



config MFD_MAX8925

	bool "Maxim Semiconductor MAX8925 PMIC Support"

	depends on I2C=y && GENERIC_HARDIRQS

drivers/mfd/Makefile

+1 −0
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@@ -92,6 +92,7 @@ obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o 


obj-$(CONFIG_MFD_MAX77686)	+= max77686.o max77686-irq.o

obj-$(CONFIG_MFD_MAX77693)	+= max77693.o max77693-irq.o

obj-$(CONFIG_MFD_MAX8907)	+= max8907.o

max8925-objs			:= max8925-core.o max8925-i2c.o

obj-$(CONFIG_MFD_MAX8925)	+= max8925.o

obj-$(CONFIG_MFD_MAX8997)	+= max8997.o max8997-irq.o

drivers/mfd/max8907.c

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/*

 * max8907.c - mfd driver for MAX8907

 *

 * Copyright (C) 2010 Gyungoh Yoo <jack.yoo@maxim-ic.com>

 * Copyright (C) 2010-2012, NVIDIA CORPORATION. All rights reserved.

 *

 * 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.

 */



#include <linux/err.h>

#include <linux/i2c.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/irq.h>

#include <linux/mfd/core.h>

#include <linux/mfd/max8907.h>

#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/regmap.h>

#include <linux/slab.h>



static struct mfd_cell max8907_cells[] = {

	{ .name = "max8907-regulator", },

	{ .name = "max8907-rtc", },

};



static bool max8907_gen_is_volatile_reg(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case MAX8907_REG_ON_OFF_IRQ1:

	case MAX8907_REG_ON_OFF_STAT:

	case MAX8907_REG_ON_OFF_IRQ2:

	case MAX8907_REG_CHG_IRQ1:

	case MAX8907_REG_CHG_IRQ2:

	case MAX8907_REG_CHG_STAT:

		return true;

	default:

		return false;

	}

}



static bool max8907_gen_is_precious_reg(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case MAX8907_REG_ON_OFF_IRQ1:

	case MAX8907_REG_ON_OFF_IRQ2:

	case MAX8907_REG_CHG_IRQ1:

	case MAX8907_REG_CHG_IRQ2:

		return true;

	default:

		return false;

	}

}



static bool max8907_gen_is_writeable_reg(struct device *dev, unsigned int reg)

{

	return !max8907_gen_is_volatile_reg(dev, reg);

}



static const struct regmap_config max8907_regmap_gen_config = {

	.reg_bits = 8,

	.val_bits = 8,

	.volatile_reg = max8907_gen_is_volatile_reg,

	.precious_reg = max8907_gen_is_precious_reg,

	.writeable_reg = max8907_gen_is_writeable_reg,

	.max_register = MAX8907_REG_LDO20VOUT,

	.cache_type = REGCACHE_RBTREE,

};



static bool max8907_rtc_is_volatile_reg(struct device *dev, unsigned int reg)

{

	if (reg <= MAX8907_REG_RTC_YEAR2)

		return true;



	switch (reg) {

	case MAX8907_REG_RTC_STATUS:

	case MAX8907_REG_RTC_IRQ:

		return true;

	default:

		return false;

	}

}



static bool max8907_rtc_is_precious_reg(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case MAX8907_REG_RTC_IRQ:

		return true;

	default:

		return false;

	}

}



static bool max8907_rtc_is_writeable_reg(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case MAX8907_REG_RTC_STATUS:

	case MAX8907_REG_RTC_IRQ:

		return false;

	default:

		return true;

	}

}



static const struct regmap_config max8907_regmap_rtc_config = {

	.reg_bits = 8,

	.val_bits = 8,

	.volatile_reg = max8907_rtc_is_volatile_reg,

	.precious_reg = max8907_rtc_is_precious_reg,

	.writeable_reg = max8907_rtc_is_writeable_reg,

	.max_register = MAX8907_REG_MPL_CNTL,

	.cache_type = REGCACHE_RBTREE,

};



static const struct regmap_irq max8907_chg_irqs[] = {

	{ .reg_offset = 0, .mask = 1 << 0, },

	{ .reg_offset = 0, .mask = 1 << 1, },

	{ .reg_offset = 0, .mask = 1 << 2, },

	{ .reg_offset = 1, .mask = 1 << 0, },

	{ .reg_offset = 1, .mask = 1 << 1, },

	{ .reg_offset = 1, .mask = 1 << 2, },

	{ .reg_offset = 1, .mask = 1 << 3, },

	{ .reg_offset = 1, .mask = 1 << 4, },

	{ .reg_offset = 1, .mask = 1 << 5, },

	{ .reg_offset = 1, .mask = 1 << 6, },

	{ .reg_offset = 1, .mask = 1 << 7, },

};



static const struct regmap_irq_chip max8907_chg_irq_chip = {

	.name = "max8907 chg",

	.status_base = MAX8907_REG_CHG_IRQ1,

	.mask_base = MAX8907_REG_CHG_IRQ1_MASK,

	.wake_base = MAX8907_REG_CHG_IRQ1_MASK,

	.irq_reg_stride = MAX8907_REG_CHG_IRQ2 - MAX8907_REG_CHG_IRQ1,

	.num_regs = 2,

	.irqs = max8907_chg_irqs,

	.num_irqs = ARRAY_SIZE(max8907_chg_irqs),

};



static const struct regmap_irq max8907_on_off_irqs[] = {

	{ .reg_offset = 0, .mask = 1 << 0, },

	{ .reg_offset = 0, .mask = 1 << 1, },

	{ .reg_offset = 0, .mask = 1 << 2, },

	{ .reg_offset = 0, .mask = 1 << 3, },

	{ .reg_offset = 0, .mask = 1 << 4, },

	{ .reg_offset = 0, .mask = 1 << 5, },

	{ .reg_offset = 0, .mask = 1 << 6, },

	{ .reg_offset = 0, .mask = 1 << 7, },

	{ .reg_offset = 1, .mask = 1 << 0, },

	{ .reg_offset = 1, .mask = 1 << 1, },

};



static const struct regmap_irq_chip max8907_on_off_irq_chip = {

	.name = "max8907 on_off",

	.status_base = MAX8907_REG_ON_OFF_IRQ1,

	.mask_base = MAX8907_REG_ON_OFF_IRQ1_MASK,

	.irq_reg_stride = MAX8907_REG_ON_OFF_IRQ2 - MAX8907_REG_ON_OFF_IRQ1,

	.num_regs = 2,

	.irqs = max8907_on_off_irqs,

	.num_irqs = ARRAY_SIZE(max8907_on_off_irqs),

};



static const struct regmap_irq max8907_rtc_irqs[] = {

	{ .reg_offset = 0, .mask = 1 << 2, },

	{ .reg_offset = 0, .mask = 1 << 3, },

};



static const struct regmap_irq_chip max8907_rtc_irq_chip = {

	.name = "max8907 rtc",

	.status_base = MAX8907_REG_RTC_IRQ,

	.mask_base = MAX8907_REG_RTC_IRQ_MASK,

	.num_regs = 1,

	.irqs = max8907_rtc_irqs,

	.num_irqs = ARRAY_SIZE(max8907_rtc_irqs),

};



static __devinit int max8907_i2c_probe(struct i2c_client *i2c,

				       const struct i2c_device_id *id)

{

	struct max8907 *max8907;

	int ret;



	max8907 = devm_kzalloc(&i2c->dev, sizeof(struct max8907), GFP_KERNEL);

	if (!max8907) {

		ret = -ENOMEM;

		goto err_alloc_drvdata;

	}



	max8907->dev = &i2c->dev;

	dev_set_drvdata(max8907->dev, max8907);



	max8907->i2c_gen = i2c;

	i2c_set_clientdata(i2c, max8907);

	max8907->regmap_gen = devm_regmap_init_i2c(i2c,

						&max8907_regmap_gen_config);

	if (IS_ERR(max8907->regmap_gen)) {

		ret = PTR_ERR(max8907->regmap_gen);

		dev_err(&i2c->dev, "gen regmap init failed: %d\n", ret);

		goto err_regmap_gen;

	}



	max8907->i2c_rtc = i2c_new_dummy(i2c->adapter, MAX8907_RTC_I2C_ADDR);

	if (!max8907->i2c_rtc) {

		ret = -ENOMEM;

		goto err_dummy_rtc;

	}

	i2c_set_clientdata(max8907->i2c_rtc, max8907);

	max8907->regmap_rtc = devm_regmap_init_i2c(max8907->i2c_rtc,

						&max8907_regmap_rtc_config);

	if (IS_ERR(max8907->regmap_rtc)) {

		ret = PTR_ERR(max8907->regmap_rtc);

		dev_err(&i2c->dev, "rtc regmap init failed: %d\n", ret);

		goto err_regmap_rtc;

	}



	irq_set_status_flags(max8907->i2c_gen->irq, IRQ_NOAUTOEN);



	ret = regmap_add_irq_chip(max8907->regmap_gen, max8907->i2c_gen->irq,

				  IRQF_ONESHOT | IRQF_SHARED, -1,

				  &max8907_chg_irq_chip,

				  &max8907->irqc_chg);

	if (ret != 0) {

		dev_err(&i2c->dev, "failed to add chg irq chip: %d\n", ret);

		goto err_irqc_chg;

	}

	ret = regmap_add_irq_chip(max8907->regmap_gen, max8907->i2c_gen->irq,

				  IRQF_ONESHOT | IRQF_SHARED, -1,

				  &max8907_on_off_irq_chip,

				  &max8907->irqc_on_off);

	if (ret != 0) {

		dev_err(&i2c->dev, "failed to add on off irq chip: %d\n", ret);

		goto err_irqc_on_off;

	}

	ret = regmap_add_irq_chip(max8907->regmap_rtc, max8907->i2c_gen->irq,

				  IRQF_ONESHOT | IRQF_SHARED, -1,

				  &max8907_rtc_irq_chip,

				  &max8907->irqc_rtc);

	if (ret != 0) {

		dev_err(&i2c->dev, "failed to add rtc irq chip: %d\n", ret);

		goto err_irqc_rtc;

	}



	enable_irq(max8907->i2c_gen->irq);



	ret = mfd_add_devices(max8907->dev, -1, max8907_cells,

			      ARRAY_SIZE(max8907_cells), NULL, 0, NULL);

	if (ret != 0) {

		dev_err(&i2c->dev, "failed to add MFD devices %d\n", ret);

		goto err_add_devices;

	}



	return 0;



err_add_devices:

	regmap_del_irq_chip(max8907->i2c_gen->irq, max8907->irqc_rtc);

err_irqc_rtc:

	regmap_del_irq_chip(max8907->i2c_gen->irq, max8907->irqc_on_off);

err_irqc_on_off:

	regmap_del_irq_chip(max8907->i2c_gen->irq, max8907->irqc_chg);

err_irqc_chg:

err_regmap_rtc:

	i2c_unregister_device(max8907->i2c_rtc);

err_dummy_rtc:

err_regmap_gen:

err_alloc_drvdata:

	return ret;

}



static __devexit int max8907_i2c_remove(struct i2c_client *i2c)

{

	struct max8907 *max8907 = i2c_get_clientdata(i2c);



	mfd_remove_devices(max8907->dev);



	regmap_del_irq_chip(max8907->i2c_gen->irq, max8907->irqc_rtc);

	regmap_del_irq_chip(max8907->i2c_gen->irq, max8907->irqc_on_off);

	regmap_del_irq_chip(max8907->i2c_gen->irq, max8907->irqc_chg);



	i2c_unregister_device(max8907->i2c_rtc);



	return 0;

}



#ifdef CONFIG_OF

static struct of_device_id max8907_of_match[] = {

	{ .compatible = "maxim,max8907" },

	{ },

};

MODULE_DEVICE_TABLE(of, max8907_of_match);

#endif



static const struct i2c_device_id max8907_i2c_id[] = {

	{"max8907", 0},

	{}

};

MODULE_DEVICE_TABLE(i2c, max8907_i2c_id);



static struct i2c_driver max8907_i2c_driver = {

	.driver = {

		.name = "max8907",

		.owner = THIS_MODULE,

		.of_match_table = of_match_ptr(max8907_of_match),

	},

	.probe = max8907_i2c_probe,

	.remove = max8907_i2c_remove,

	.id_table = max8907_i2c_id,

};



static int __init max8907_i2c_init(void)

{

	int ret = -ENODEV;



	ret = i2c_add_driver(&max8907_i2c_driver);

	if (ret != 0)

		pr_err("Failed to register I2C driver: %d\n", ret);



	return ret;

}

subsys_initcall(max8907_i2c_init);



static void __exit max8907_i2c_exit(void)

{

	i2c_del_driver(&max8907_i2c_driver);

}

module_exit(max8907_i2c_exit);



MODULE_DESCRIPTION("MAX8907 multi-function core driver");

MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@maxim-ic.com>");

MODULE_LICENSE("GPL v2");

include/linux/mfd/max8907.h

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/*

 * Functions to access MAX8907 power management chip.

 *

 * Copyright (C) 2010 Gyungoh Yoo <jack.yoo@maxim-ic.com>

 * Copyright (C) 2012, NVIDIA CORPORATION. All rights reserved.

 *

 * 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.

 */



#ifndef __LINUX_MFD_MAX8907_H

#define __LINUX_MFD_MAX8907_H



#include <linux/mutex.h>

#include <linux/pm.h>



#define MAX8907_GEN_I2C_ADDR		(0x78 >> 1)

#define MAX8907_ADC_I2C_ADDR		(0x8e >> 1)

#define MAX8907_RTC_I2C_ADDR		(0xd0 >> 1)



/* MAX8907 register map */

#define MAX8907_REG_SYSENSEL		0x00

#define MAX8907_REG_ON_OFF_IRQ1		0x01

#define MAX8907_REG_ON_OFF_IRQ1_MASK	0x02

#define MAX8907_REG_ON_OFF_STAT		0x03

#define MAX8907_REG_SDCTL1		0x04

#define MAX8907_REG_SDSEQCNT1		0x05

#define MAX8907_REG_SDV1		0x06

#define MAX8907_REG_SDCTL2		0x07

#define MAX8907_REG_SDSEQCNT2		0x08

#define MAX8907_REG_SDV2		0x09

#define MAX8907_REG_SDCTL3		0x0A

#define MAX8907_REG_SDSEQCNT3		0x0B

#define MAX8907_REG_SDV3		0x0C

#define MAX8907_REG_ON_OFF_IRQ2		0x0D

#define MAX8907_REG_ON_OFF_IRQ2_MASK	0x0E

#define MAX8907_REG_RESET_CNFG		0x0F

#define MAX8907_REG_LDOCTL16		0x10

#define MAX8907_REG_LDOSEQCNT16		0x11

#define MAX8907_REG_LDO16VOUT		0x12

#define MAX8907_REG_SDBYSEQCNT		0x13

#define MAX8907_REG_LDOCTL17		0x14

#define MAX8907_REG_LDOSEQCNT17		0x15

#define MAX8907_REG_LDO17VOUT		0x16

#define MAX8907_REG_LDOCTL1		0x18

#define MAX8907_REG_LDOSEQCNT1		0x19

#define MAX8907_REG_LDO1VOUT		0x1A

#define MAX8907_REG_LDOCTL2		0x1C

#define MAX8907_REG_LDOSEQCNT2		0x1D

#define MAX8907_REG_LDO2VOUT		0x1E

#define MAX8907_REG_LDOCTL3		0x20

#define MAX8907_REG_LDOSEQCNT3		0x21

#define MAX8907_REG_LDO3VOUT		0x22

#define MAX8907_REG_LDOCTL4		0x24

#define MAX8907_REG_LDOSEQCNT4		0x25

#define MAX8907_REG_LDO4VOUT		0x26

#define MAX8907_REG_LDOCTL5		0x28

#define MAX8907_REG_LDOSEQCNT5		0x29

#define MAX8907_REG_LDO5VOUT		0x2A

#define MAX8907_REG_LDOCTL6		0x2C

#define MAX8907_REG_LDOSEQCNT6		0x2D

#define MAX8907_REG_LDO6VOUT		0x2E

#define MAX8907_REG_LDOCTL7		0x30

#define MAX8907_REG_LDOSEQCNT7		0x31

#define MAX8907_REG_LDO7VOUT		0x32

#define MAX8907_REG_LDOCTL8		0x34

#define MAX8907_REG_LDOSEQCNT8		0x35

#define MAX8907_REG_LDO8VOUT		0x36

#define MAX8907_REG_LDOCTL9		0x38

#define MAX8907_REG_LDOSEQCNT9		0x39

#define MAX8907_REG_LDO9VOUT		0x3A

#define MAX8907_REG_LDOCTL10		0x3C

#define MAX8907_REG_LDOSEQCNT10		0x3D

#define MAX8907_REG_LDO10VOUT		0x3E

#define MAX8907_REG_LDOCTL11		0x40

#define MAX8907_REG_LDOSEQCNT11		0x41

#define MAX8907_REG_LDO11VOUT		0x42

#define MAX8907_REG_LDOCTL12		0x44

#define MAX8907_REG_LDOSEQCNT12		0x45

#define MAX8907_REG_LDO12VOUT		0x46

#define MAX8907_REG_LDOCTL13		0x48

#define MAX8907_REG_LDOSEQCNT13		0x49

#define MAX8907_REG_LDO13VOUT		0x4A

#define MAX8907_REG_LDOCTL14		0x4C

#define MAX8907_REG_LDOSEQCNT14		0x4D

#define MAX8907_REG_LDO14VOUT		0x4E

#define MAX8907_REG_LDOCTL15		0x50

#define MAX8907_REG_LDOSEQCNT15		0x51

#define MAX8907_REG_LDO15VOUT		0x52

#define MAX8907_REG_OUT5VEN		0x54

#define MAX8907_REG_OUT5VSEQ		0x55

#define MAX8907_REG_OUT33VEN		0x58

#define MAX8907_REG_OUT33VSEQ		0x59

#define MAX8907_REG_LDOCTL19		0x5C

#define MAX8907_REG_LDOSEQCNT19		0x5D

#define MAX8907_REG_LDO19VOUT		0x5E

#define MAX8907_REG_LBCNFG		0x60

#define MAX8907_REG_SEQ1CNFG		0x64

#define MAX8907_REG_SEQ2CNFG		0x65

#define MAX8907_REG_SEQ3CNFG		0x66

#define MAX8907_REG_SEQ4CNFG		0x67

#define MAX8907_REG_SEQ5CNFG		0x68

#define MAX8907_REG_SEQ6CNFG		0x69

#define MAX8907_REG_SEQ7CNFG		0x6A

#define MAX8907_REG_LDOCTL18		0x72

#define MAX8907_REG_LDOSEQCNT18		0x73

#define MAX8907_REG_LDO18VOUT		0x74

#define MAX8907_REG_BBAT_CNFG		0x78

#define MAX8907_REG_CHG_CNTL1		0x7C

#define MAX8907_REG_CHG_CNTL2		0x7D

#define MAX8907_REG_CHG_IRQ1		0x7E

#define MAX8907_REG_CHG_IRQ2		0x7F

#define MAX8907_REG_CHG_IRQ1_MASK	0x80

#define MAX8907_REG_CHG_IRQ2_MASK	0x81

#define MAX8907_REG_CHG_STAT		0x82

#define MAX8907_REG_WLED_MODE_CNTL	0x84

#define MAX8907_REG_ILED_CNTL		0x84

#define MAX8907_REG_II1RR		0x8E

#define MAX8907_REG_II2RR		0x8F

#define MAX8907_REG_LDOCTL20		0x9C

#define MAX8907_REG_LDOSEQCNT20		0x9D

#define MAX8907_REG_LDO20VOUT		0x9E



/* RTC register map */

#define MAX8907_REG_RTC_SEC		0x00

#define MAX8907_REG_RTC_MIN		0x01

#define MAX8907_REG_RTC_HOURS		0x02

#define MAX8907_REG_RTC_WEEKDAY		0x03

#define MAX8907_REG_RTC_DATE		0x04

#define MAX8907_REG_RTC_MONTH		0x05

#define MAX8907_REG_RTC_YEAR1		0x06

#define MAX8907_REG_RTC_YEAR2		0x07

#define MAX8907_REG_ALARM0_SEC		0x08

#define MAX8907_REG_ALARM0_MIN		0x09

#define MAX8907_REG_ALARM0_HOURS	0x0A

#define MAX8907_REG_ALARM0_WEEKDAY	0x0B

#define MAX8907_REG_ALARM0_DATE		0x0C

#define MAX8907_REG_ALARM0_MONTH	0x0D

#define MAX8907_REG_ALARM0_YEAR1	0x0E

#define MAX8907_REG_ALARM0_YEAR2	0x0F

#define MAX8907_REG_ALARM1_SEC		0x10

#define MAX8907_REG_ALARM1_MIN		0x11

#define MAX8907_REG_ALARM1_HOURS	0x12

#define MAX8907_REG_ALARM1_WEEKDAY	0x13

#define MAX8907_REG_ALARM1_DATE		0x14

#define MAX8907_REG_ALARM1_MONTH	0x15

#define MAX8907_REG_ALARM1_YEAR1	0x16

#define MAX8907_REG_ALARM1_YEAR2	0x17

#define MAX8907_REG_ALARM0_CNTL		0x18

#define MAX8907_REG_ALARM1_CNTL		0x19

#define MAX8907_REG_RTC_STATUS		0x1A

#define MAX8907_REG_RTC_CNTL		0x1B

#define MAX8907_REG_RTC_IRQ		0x1C

#define MAX8907_REG_RTC_IRQ_MASK	0x1D

#define MAX8907_REG_MPL_CNTL		0x1E



/* ADC and Touch Screen Controller register map */

#define MAX8907_CTL			0

#define MAX8907_SEQCNT			1

#define MAX8907_VOUT			2



/* mask bit fields */

#define MAX8907_MASK_LDO_SEQ		0x1C

#define MAX8907_MASK_LDO_EN		0x01

#define MAX8907_MASK_VBBATTCV		0x03

#define MAX8907_MASK_OUT5V_VINEN	0x10

#define MAX8907_MASK_OUT5V_ENSRC	0x0E

#define MAX8907_MASK_OUT5V_EN		0x01



/* Regulator IDs */

#define MAX8907_MBATT	0

#define MAX8907_SD1	1

#define MAX8907_SD2	2

#define MAX8907_SD3	3

#define MAX8907_LDO1	4

#define MAX8907_LDO2	5

#define MAX8907_LDO3	6

#define MAX8907_LDO4	7

#define MAX8907_LDO5	8

#define MAX8907_LDO6	9

#define MAX8907_LDO7	10

#define MAX8907_LDO8	11

#define MAX8907_LDO9	12

#define MAX8907_LDO10	13

#define MAX8907_LDO11	14

#define MAX8907_LDO12	15

#define MAX8907_LDO13	16

#define MAX8907_LDO14	17

#define MAX8907_LDO15	18

#define MAX8907_LDO16	19

#define MAX8907_LDO17	20

#define MAX8907_LDO18	21

#define MAX8907_LDO19	22

#define MAX8907_LDO20	23

#define MAX8907_OUT5V	24

#define MAX8907_OUT33V	25

#define MAX8907_BBAT	26

#define MAX8907_SDBY	27

#define MAX8907_VRTC	28

#define MAX8907_NUM_REGULATORS (MAX8907_VRTC + 1)



/* IRQ definitions */

enum {

	MAX8907_IRQ_VCHG_DC_OVP = 0,

	MAX8907_IRQ_VCHG_DC_F,

	MAX8907_IRQ_VCHG_DC_R,

	MAX8907_IRQ_VCHG_THM_OK_R,

	MAX8907_IRQ_VCHG_THM_OK_F,

	MAX8907_IRQ_VCHG_MBATTLOW_F,

	MAX8907_IRQ_VCHG_MBATTLOW_R,

	MAX8907_IRQ_VCHG_RST,

	MAX8907_IRQ_VCHG_DONE,

	MAX8907_IRQ_VCHG_TOPOFF,

	MAX8907_IRQ_VCHG_TMR_FAULT,



	MAX8907_IRQ_GPM_RSTIN = 0,

	MAX8907_IRQ_GPM_MPL,

	MAX8907_IRQ_GPM_SW_3SEC,

	MAX8907_IRQ_GPM_EXTON_F,

	MAX8907_IRQ_GPM_EXTON_R,

	MAX8907_IRQ_GPM_SW_1SEC,

	MAX8907_IRQ_GPM_SW_F,

	MAX8907_IRQ_GPM_SW_R,

	MAX8907_IRQ_GPM_SYSCKEN_F,

	MAX8907_IRQ_GPM_SYSCKEN_R,



	MAX8907_IRQ_RTC_ALARM1 = 0,

	MAX8907_IRQ_RTC_ALARM0,

};



struct max8907_platform_data {

	struct regulator_init_data *init_data[MAX8907_NUM_REGULATORS];

};



struct regmap_irq_chips_data;



struct max8907 {

	struct device			*dev;

	struct mutex			irq_lock;

	struct i2c_client		*i2c_gen;

	struct i2c_client		*i2c_rtc;

	struct regmap			*regmap_gen;

	struct regmap			*regmap_rtc;

	struct regmap_irq_chip_data	*irqc_chg;

	struct regmap_irq_chip_data	*irqc_on_off;

	struct regmap_irq_chip_data	*irqc_rtc;

};



#endif