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    Subject[PATCH] mfd: add MAX8907 core driver
    Date
    From: Gyungoh Yoo <jack.yoo@maxim-ic.com>

    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: Gyungoh Yoo <jack.yoo@maxim-ic.com>
    Signed-off-by: Stephen Warren <swarren@nvidia.com>
    ---
    v3:
    * Remove usage of new (dropped) regmap_add_irq_chips() API; the IRQ core
    handles sharing threaded interrupts, so there's no need to do anything
    much special to use them.
    v2:
    * Rework interrupt code to use regmap-irq. NOTE: This depends on new regmap
    feature/patches not yet checked in.
    * Implement precious regmap callback to prevent debugfs reading clear-on-
    read IRQ status registers
    * Fix devm_regmap_init_i2c() parameter
    * Add *-supply properties to DT binding doc.
    ---
    .../devicetree/bindings/regulator/max8907.txt | 62 ++++
    drivers/mfd/Kconfig | 12 +
    drivers/mfd/Makefile | 1 +
    drivers/mfd/max8907.c | 336 ++++++++++++++++++++
    include/linux/mfd/max8907.h | 221 +++++++++++++
    5 files changed, 632 insertions(+), 0 deletions(-)
    create mode 100644 Documentation/devicetree/bindings/regulator/max8907.txt
    create mode 100644 drivers/mfd/max8907.c
    create mode 100644 include/linux/mfd/max8907.h

    diff --git a/Documentation/devicetree/bindings/regulator/max8907.txt b/Documentation/devicetree/bindings/regulator/max8907.txt
    new file mode 100644
    index 0000000..4ec4877
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/regulator/max8907.txt
    @@ -0,0 +1,62 @@
    +MAX8907 regulator
    +
    +Required properties:
    +- compatible: "maxim,max8907"
    +- reg: I2C slave address
    +- interrupts: The interrupt output of the controller
    +- 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.
    +- lxw-supply: The input supply for WLED.
    +- 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, wled.
    +
    +Example:
    +
    + max8907@3c {
    + compatible = "maxim,max8907";
    + reg = <0x3c>;
    + interrupts = <0 86 0x4>;
    +
    + in-v1-supply = <&some_reg>;
    + ...
    + in1-supply = <&some_reg>;
    + ...
    + lxw-supply = <&some_reg>;
    +
    + regulators {
    + #address-cells = <1>;
    + #size-cells = <0>;
    +
    + regulator@0 {
    + reg = <0>;
    + regulator-compatible = "sd1";
    + regulator-name = "nvvdd_sv1,vdd_cpu_pmu";
    + regulator-min-microvolt = <1000000>;
    + regulator-max-microvolt = <1000000>;
    + regulator-always-on;
    + };
    +
    + regulator@1 {
    + reg = <1>;
    + regulator-compatible = "sd2";
    + regulator-name = "nvvdd_sv2,vdd_core";
    + regulator-min-microvolt = <1200000>;
    + regulator-max-microvolt = <1200000>;
    + regulator-always-on;
    + };
    +...
    + };
    + };
    + };
    diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
    index d1facef..856ec00 100644
    --- a/drivers/mfd/Kconfig
    +++ b/drivers/mfd/Kconfig
    @@ -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
    diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
    index 79dd22d..2a4108d 100644
    --- a/drivers/mfd/Makefile
    +++ b/drivers/mfd/Makefile
    @@ -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
    diff --git a/drivers/mfd/max8907.c b/drivers/mfd/max8907.c
    new file mode 100644
    index 0000000..70edbcb
    --- /dev/null
    +++ b/drivers/mfd/max8907.c
    @@ -0,0 +1,336 @@
    +/*
    + * 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)
    +{
    + if (reg <= MAX8907_REG_RTC_YEAR2)
    + return true;
    +
    + 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,
    + .wake_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,
    + .wake_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);
    + 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");
    diff --git a/include/linux/mfd/max8907.h b/include/linux/mfd/max8907.h
    new file mode 100644
    index 0000000..9f04a44
    --- /dev/null
    +++ b/include/linux/mfd/max8907.h
    @@ -0,0 +1,221 @@
    +/*
    + * 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_SD1 0
    +#define MAX8907_SD2 1
    +#define MAX8907_SD3 2
    +#define MAX8907_LDO1 3
    +#define MAX8907_LDO2 4
    +#define MAX8907_LDO3 5
    +#define MAX8907_LDO4 6
    +#define MAX8907_LDO5 7
    +#define MAX8907_LDO6 8
    +#define MAX8907_LDO7 9
    +#define MAX8907_LDO8 10
    +#define MAX8907_LDO9 11
    +#define MAX8907_LDO10 12
    +#define MAX8907_LDO11 13
    +#define MAX8907_LDO12 14
    +#define MAX8907_LDO13 15
    +#define MAX8907_LDO14 16
    +#define MAX8907_LDO15 17
    +#define MAX8907_LDO16 18
    +#define MAX8907_LDO17 19
    +#define MAX8907_LDO18 20
    +#define MAX8907_LDO19 21
    +#define MAX8907_LDO20 22
    +#define MAX8907_OUT5V 23
    +#define MAX8907_OUT33V 24
    +#define MAX8907_BBAT 25
    +#define MAX8907_SDBY 26
    +#define MAX8907_VRTC 27
    +#define MAX8907_WLED 28
    +#define MAX8907_NUM_REGULATORS (MAX8907_WLED + 1)
    +
    +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
    --
    1.7.0.4


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      Last update: 2012-08-01 23:22    [W:0.058 / U:122.700 seconds]
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