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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    [from the cache]
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