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mfd: Add ADP5520/ADP5501 driver

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Base driver for Analog Devices ADP5520/ADP5501 MFD PMICs

Subdevs:
LCD Backlight   : drivers/video/backlight/adp5520_bl.c
LEDs            : drivers/led/leds-adp5520.c
GPIO            : drivers/gpio/adp5520-gpio.c (ADP5520 only)
Keys            : drivers/input/keyboard/adp5520-keys.c (ADP5520 only)

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Michael Hennerich 2009-10-12 17:22:38 +02:00 committed by Samuel Ortiz
parent 7c29a47668
commit a5736e0b62
4 changed files with 688 additions and 0 deletions
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10
drivers/mfd/Kconfig
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@ -174,6 +174,16 @@ config PMIC_DA903X
individual components like LCD backlight, voltage regulators,
LEDs and battery-charger under the corresponding menus.
config PMIC_ADP5520
bool "Analog Devices ADP5520/01 MFD PMIC Core Support"
depends on I2C=y
help
Say yes here to add support for Analog Devices AD5520 and ADP5501,
Multifunction Power Management IC. This includes
the I2C driver and the core APIs _only_, you have to select
individual components like LCD backlight, LEDs, GPIOs and Kepad
under the corresponding menus.
config MFD_WM8400
tristate "Support Wolfson Microelectronics WM8400"
select MFD_CORE

1
drivers/mfd/Makefile
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@ -54,3 +54,4 @@ obj-$(CONFIG_AB3100_CORE) += ab3100-core.o
obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o
obj-$(CONFIG_AB4500_CORE) += ab4500-core.o
obj-$(CONFIG_MFD_88PM8607) += 88pm8607.o
obj-$(CONFIG_PMIC_ADP5520) += adp5520.o

378
drivers/mfd/adp5520.c Normal file
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@ -0,0 +1,378 @@
/*
* Base driver for Analog Devices ADP5520/ADP5501 MFD PMICs
* LCD Backlight: drivers/video/backlight/adp5520_bl
* LEDs : drivers/led/leds-adp5520
* GPIO : drivers/gpio/adp5520-gpio (ADP5520 only)
* Keys : drivers/input/keyboard/adp5520-keys (ADP5520 only)
*
* Copyright 2009 Analog Devices Inc.
*
* Derived from da903x:
* Copyright (C) 2008 Compulab, Ltd.
* Mike Rapoport <mike@compulab.co.il>
*
* Copyright (C) 2006-2008 Marvell International Ltd.
* Eric Miao <eric.miao@marvell.com>
*
* Licensed under the GPL-2 or later.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/mfd/adp5520.h>
struct adp5520_chip {
struct i2c_client *client;
struct device *dev;
struct mutex lock;
struct blocking_notifier_head notifier_list;
int irq;
unsigned long id;
};
static int __adp5520_read(struct i2c_client *client,
int reg, uint8_t *val)
{
int ret;
ret = i2c_smbus_read_byte_data(client, reg);
if (ret < 0) {
dev_err(&client->dev, "failed reading at 0x%02x\n", reg);
return ret;
}
*val = (uint8_t)ret;
return 0;
}
static int __adp5520_write(struct i2c_client *client,
int reg, uint8_t val)
{
int ret;
ret = i2c_smbus_write_byte_data(client, reg, val);
if (ret < 0) {
dev_err(&client->dev, "failed writing 0x%02x to 0x%02x\n",
val, reg);
return ret;
}
return 0;
}
int __adp5520_ack_bits(struct i2c_client *client, int reg, uint8_t bit_mask)
{
struct adp5520_chip *chip = i2c_get_clientdata(client);
uint8_t reg_val;
int ret;
mutex_lock(&chip->lock);
ret = __adp5520_read(client, reg, &reg_val);
if (!ret) {
reg_val |= bit_mask;
ret = __adp5520_write(client, reg, reg_val);
}
mutex_unlock(&chip->lock);
return ret;
}
int adp5520_write(struct device *dev, int reg, uint8_t val)
{
return __adp5520_write(to_i2c_client(dev), reg, val);
}
EXPORT_SYMBOL_GPL(adp5520_write);
int adp5520_read(struct device *dev, int reg, uint8_t *val)
{
return __adp5520_read(to_i2c_client(dev), reg, val);
}
EXPORT_SYMBOL_GPL(adp5520_read);
int adp5520_set_bits(struct device *dev, int reg, uint8_t bit_mask)
{
struct adp5520_chip *chip = dev_get_drvdata(dev);
uint8_t reg_val;
int ret;
mutex_lock(&chip->lock);
ret = __adp5520_read(chip->client, reg, &reg_val);
if (!ret && ((reg_val & bit_mask) == 0)) {
reg_val |= bit_mask;
ret = __adp5520_write(chip->client, reg, reg_val);
}
mutex_unlock(&chip->lock);
return ret;
}
EXPORT_SYMBOL_GPL(adp5520_set_bits);
int adp5520_clr_bits(struct device *dev, int reg, uint8_t bit_mask)
{
struct adp5520_chip *chip = dev_get_drvdata(dev);
uint8_t reg_val;
int ret;
mutex_lock(&chip->lock);
ret = __adp5520_read(chip->client, reg, &reg_val);
if (!ret && (reg_val & bit_mask)) {
reg_val &= ~bit_mask;
ret = __adp5520_write(chip->client, reg, reg_val);
}
mutex_unlock(&chip->lock);
return ret;
}
EXPORT_SYMBOL_GPL(adp5520_clr_bits);
int adp5520_register_notifier(struct device *dev, struct notifier_block *nb,
unsigned int events)
{
struct adp5520_chip *chip = dev_get_drvdata(dev);
if (chip->irq) {
adp5520_set_bits(chip->dev, ADP5520_INTERRUPT_ENABLE,
events & (ADP5520_KP_IEN | ADP5520_KR_IEN |
ADP5520_OVP_IEN | ADP5520_CMPR_IEN));
return blocking_notifier_chain_register(&chip->notifier_list,
nb);
}
return -ENODEV;
}
EXPORT_SYMBOL_GPL(adp5520_register_notifier);
int adp5520_unregister_notifier(struct device *dev, struct notifier_block *nb,
unsigned int events)
{
struct adp5520_chip *chip = dev_get_drvdata(dev);
adp5520_clr_bits(chip->dev, ADP5520_INTERRUPT_ENABLE,
events & (ADP5520_KP_IEN | ADP5520_KR_IEN |
ADP5520_OVP_IEN | ADP5520_CMPR_IEN));
return blocking_notifier_chain_unregister(&chip->notifier_list, nb);
}
EXPORT_SYMBOL_GPL(adp5520_unregister_notifier);
static irqreturn_t adp5520_irq_thread(int irq, void *data)
{
struct adp5520_chip *chip = data;
unsigned int events;
uint8_t reg_val;
int ret;
ret = __adp5520_read(chip->client, ADP5520_MODE_STATUS, &reg_val);
if (ret)
goto out;
events = reg_val & (ADP5520_OVP_INT | ADP5520_CMPR_INT |
ADP5520_GPI_INT | ADP5520_KR_INT | ADP5520_KP_INT);
blocking_notifier_call_chain(&chip->notifier_list, events, NULL);
/* ACK, Sticky bits are W1C */
__adp5520_ack_bits(chip->client, ADP5520_MODE_STATUS, events);
out:
return IRQ_HANDLED;
}
static int __remove_subdev(struct device *dev, void *unused)
{
platform_device_unregister(to_platform_device(dev));
return 0;
}
static int adp5520_remove_subdevs(struct adp5520_chip *chip)
{
return device_for_each_child(chip->dev, NULL, __remove_subdev);
}
static int __devinit adp5520_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct adp5520_platform_data *pdata = client->dev.platform_data;
struct platform_device *pdev;
struct adp5520_chip *chip;
int ret;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_BYTE_DATA)) {
dev_err(&client->dev, "SMBUS Word Data not Supported\n");
return -EIO;
}
if (pdata == NULL) {
dev_err(&client->dev, "missing platform data\n");
return -ENODEV;
}
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
i2c_set_clientdata(client, chip);
chip->client = client;
chip->dev = &client->dev;
chip->irq = client->irq;
chip->id = id->driver_data;
mutex_init(&chip->lock);
if (chip->irq) {
BLOCKING_INIT_NOTIFIER_HEAD(&chip->notifier_list);
ret = request_threaded_irq(chip->irq, NULL, adp5520_irq_thread,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
"adp5520", chip);
if (ret) {
dev_err(&client->dev, "failed to request irq %d\n",
chip->irq);
goto out_free_chip;
}
}
ret = adp5520_write(chip->dev, ADP5520_MODE_STATUS, ADP5520_nSTNBY);
if (ret) {
dev_err(&client->dev, "failed to write\n");
goto out_free_irq;
}
if (pdata->keys) {
pdev = platform_device_register_data(chip->dev, "adp5520-keys",
chip->id, pdata->keys, sizeof(*pdata->keys));
if (IS_ERR(pdev)) {
ret = PTR_ERR(pdev);
goto out_remove_subdevs;
}
}
if (pdata->gpio) {
pdev = platform_device_register_data(chip->dev, "adp5520-gpio",
chip->id, pdata->gpio, sizeof(*pdata->gpio));
if (IS_ERR(pdev)) {
ret = PTR_ERR(pdev);
goto out_remove_subdevs;
}
}
if (pdata->leds) {
pdev = platform_device_register_data(chip->dev, "adp5520-led",
chip->id, pdata->leds, sizeof(*pdata->leds));
if (IS_ERR(pdev)) {
ret = PTR_ERR(pdev);
goto out_remove_subdevs;
}
}
if (pdata->backlight) {
pdev = platform_device_register_data(chip->dev,
"adp5520-backlight",
chip->id,
pdata->backlight,
sizeof(*pdata->backlight));
if (IS_ERR(pdev)) {
ret = PTR_ERR(pdev);
goto out_remove_subdevs;
}
}
return 0;
out_remove_subdevs:
adp5520_remove_subdevs(chip);
out_free_irq:
if (chip->irq)
free_irq(chip->irq, chip);
out_free_chip:
i2c_set_clientdata(client, NULL);
kfree(chip);
return ret;
}
static int __devexit adp5520_remove(struct i2c_client *client)
{
struct adp5520_chip *chip = dev_get_drvdata(&client->dev);
if (chip->irq)
free_irq(chip->irq, chip);
adp5520_remove_subdevs(chip);
adp5520_write(chip->dev, ADP5520_MODE_STATUS, 0);
i2c_set_clientdata(client, NULL);
kfree(chip);
return 0;
}
#ifdef CONFIG_PM
static int adp5520_suspend(struct i2c_client *client,
pm_message_t state)
{
struct adp5520_chip *chip = dev_get_drvdata(&client->dev);
adp5520_clr_bits(chip->dev, ADP5520_MODE_STATUS, ADP5520_nSTNBY);
return 0;
}
static int adp5520_resume(struct i2c_client *client)
{
struct adp5520_chip *chip = dev_get_drvdata(&client->dev);
adp5520_set_bits(chip->dev, ADP5520_MODE_STATUS, ADP5520_nSTNBY);
return 0;
}
#else
#define adp5520_suspend NULL
#define adp5520_resume NULL
#endif
static const struct i2c_device_id adp5520_id[] = {
{ "pmic-adp5520", ID_ADP5520 },
{ "pmic-adp5501", ID_ADP5501 },
{ }
};
MODULE_DEVICE_TABLE(i2c, adp5520_id);
static struct i2c_driver adp5520_driver = {
.driver = {
.name = "adp5520",
.owner = THIS_MODULE,
},
.probe = adp5520_probe,
.remove = __devexit_p(adp5520_remove),
.suspend = adp5520_suspend,
.resume = adp5520_resume,
.id_table = adp5520_id,
};
static int __init adp5520_init(void)
{
return i2c_add_driver(&adp5520_driver);
}
module_init(adp5520_init);
static void __exit adp5520_exit(void)
{
i2c_del_driver(&adp5520_driver);
}
module_exit(adp5520_exit);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_DESCRIPTION("ADP5520(01) PMIC-MFD Driver");
MODULE_LICENSE("GPL");

299
include/linux/mfd/adp5520.h Normal file
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@ -0,0 +1,299 @@
/*
* Definitions and platform data for Analog Devices
* ADP5520/ADP5501 MFD PMICs (Backlight, LED, GPIO and Keys)
*
* Copyright 2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef __LINUX_MFD_ADP5520_H
#define __LINUX_MFD_ADP5520_H
#define ID_ADP5520 5520
#define ID_ADP5501 5501
/*
* ADP5520/ADP5501 Register Map
*/
#define ADP5520_MODE_STATUS 0x00
#define ADP5520_INTERRUPT_ENABLE 0x01
#define ADP5520_BL_CONTROL 0x02
#define ADP5520_BL_TIME 0x03
#define ADP5520_BL_FADE 0x04
#define ADP5520_DAYLIGHT_MAX 0x05
#define ADP5520_DAYLIGHT_DIM 0x06
#define ADP5520_OFFICE_MAX 0x07
#define ADP5520_OFFICE_DIM 0x08
#define ADP5520_DARK_MAX 0x09
#define ADP5520_DARK_DIM 0x0A
#define ADP5520_BL_VALUE 0x0B
#define ADP5520_ALS_CMPR_CFG 0x0C
#define ADP5520_L2_TRIP 0x0D
#define ADP5520_L2_HYS 0x0E
#define ADP5520_L3_TRIP 0x0F
#define ADP5520_L3_HYS 0x10
#define ADP5520_LED_CONTROL 0x11
#define ADP5520_LED_TIME 0x12
#define ADP5520_LED_FADE 0x13
#define ADP5520_LED1_CURRENT 0x14
#define ADP5520_LED2_CURRENT 0x15
#define ADP5520_LED3_CURRENT 0x16
/*
* ADP5520 Register Map
*/
#define ADP5520_GPIO_CFG_1 0x17
#define ADP5520_GPIO_CFG_2 0x18
#define ADP5520_GPIO_IN 0x19
#define ADP5520_GPIO_OUT 0x1A
#define ADP5520_GPIO_INT_EN 0x1B
#define ADP5520_GPIO_INT_STAT 0x1C
#define ADP5520_GPIO_INT_LVL 0x1D
#define ADP5520_GPIO_DEBOUNCE 0x1E
#define ADP5520_GPIO_PULLUP 0x1F
#define ADP5520_KP_INT_STAT_1 0x20
#define ADP5520_KP_INT_STAT_2 0x21
#define ADP5520_KR_INT_STAT_1 0x22
#define ADP5520_KR_INT_STAT_2 0x23
#define ADP5520_KEY_STAT_1 0x24
#define ADP5520_KEY_STAT_2 0x25
/*
* MODE_STATUS bits
*/
#define ADP5520_nSTNBY (1 << 7)
#define ADP5520_BL_EN (1 << 6)
#define ADP5520_DIM_EN (1 << 5)
#define ADP5520_OVP_INT (1 << 4)
#define ADP5520_CMPR_INT (1 << 3)
#define ADP5520_GPI_INT (1 << 2)
#define ADP5520_KR_INT (1 << 1)
#define ADP5520_KP_INT (1 << 0)
/*
* INTERRUPT_ENABLE bits
*/
#define ADP5520_AUTO_LD_EN (1 << 4)
#define ADP5520_CMPR_IEN (1 << 3)
#define ADP5520_OVP_IEN (1 << 2)
#define ADP5520_KR_IEN (1 << 1)
#define ADP5520_KP_IEN (1 << 0)
/*
* BL_CONTROL bits
*/
#define ADP5520_BL_LVL ((x) << 5)
#define ADP5520_BL_LAW ((x) << 4)
#define ADP5520_BL_AUTO_ADJ (1 << 3)
#define ADP5520_OVP_EN (1 << 2)
#define ADP5520_FOVR (1 << 1)
#define ADP5520_KP_BL_EN (1 << 0)
/*
* ALS_CMPR_CFG bits
*/
#define ADP5520_L3_OUT (1 << 3)
#define ADP5520_L2_OUT (1 << 2)
#define ADP5520_L3_EN (1 << 1)
#define ADP5020_MAX_BRIGHTNESS 0x7F
#define FADE_VAL(in, out) ((0xF & (in)) | ((0xF & (out)) << 4))
#define BL_CTRL_VAL(law, auto) (((1 & (auto)) << 3) | ((0x3 & (law)) << 4))
#define ALS_CMPR_CFG_VAL(filt, l3_en) (((0x7 & filt) << 5) | l3_en)
/*
* LEDs subdevice bits and masks
*/
#define ADP5520_01_MAXLEDS 3
#define ADP5520_FLAG_LED_MASK 0x3
#define ADP5520_FLAG_OFFT_SHIFT 8
#define ADP5520_FLAG_OFFT_MASK 0x3
#define ADP5520_R3_MODE (1 << 5)
#define ADP5520_C3_MODE (1 << 4)
#define ADP5520_LED_LAW (1 << 3)
#define ADP5520_LED3_EN (1 << 2)
#define ADP5520_LED2_EN (1 << 1)
#define ADP5520_LED1_EN (1 << 0)
/*
* GPIO subdevice bits and masks
*/
#define ADP5520_MAXGPIOS 8
#define ADP5520_GPIO_C3 (1 << 7) /* LED2 or GPIO7 aka C3 */
#define ADP5520_GPIO_C2 (1 << 6)
#define ADP5520_GPIO_C1 (1 << 5)
#define ADP5520_GPIO_C0 (1 << 4)
#define ADP5520_GPIO_R3 (1 << 3) /* LED3 or GPIO3 aka R3 */
#define ADP5520_GPIO_R2 (1 << 2)
#define ADP5520_GPIO_R1 (1 << 1)
#define ADP5520_GPIO_R0 (1 << 0)
struct adp5520_gpio_platform_data {
unsigned gpio_start;
u8 gpio_en_mask;
u8 gpio_pullup_mask;
};
/*
* Keypad subdevice bits and masks
*/
#define ADP5520_MAXKEYS 16
#define ADP5520_COL_C3 (1 << 7) /* LED2 or GPIO7 aka C3 */
#define ADP5520_COL_C2 (1 << 6)
#define ADP5520_COL_C1 (1 << 5)
#define ADP5520_COL_C0 (1 << 4)
#define ADP5520_ROW_R3 (1 << 3) /* LED3 or GPIO3 aka R3 */
#define ADP5520_ROW_R2 (1 << 2)
#define ADP5520_ROW_R1 (1 << 1)
#define ADP5520_ROW_R0 (1 << 0)
#define ADP5520_KEY(row, col) (col + row * 4)
#define ADP5520_KEYMAPSIZE ADP5520_MAXKEYS
struct adp5520_keys_platform_data {
int rows_en_mask; /* Number of rows */
int cols_en_mask; /* Number of columns */
const unsigned short *keymap; /* Pointer to keymap */
unsigned short keymapsize; /* Keymap size */
unsigned repeat:1; /* Enable key repeat */
};
/*
* LEDs subdevice platform data
*/
#define FLAG_ID_ADP5520_LED1_ADP5501_LED0 1 /* ADP5520 PIN ILED */
#define FLAG_ID_ADP5520_LED2_ADP5501_LED1 2 /* ADP5520 PIN C3 */
#define FLAG_ID_ADP5520_LED3_ADP5501_LED2 3 /* ADP5520 PIN R3 */
#define ADP5520_LED_DIS_BLINK (0 << ADP5520_FLAG_OFFT_SHIFT)
#define ADP5520_LED_OFFT_600ms (1 << ADP5520_FLAG_OFFT_SHIFT)
#define ADP5520_LED_OFFT_800ms (2 << ADP5520_FLAG_OFFT_SHIFT)
#define ADP5520_LED_OFFT_1200ms (3 << ADP5520_FLAG_OFFT_SHIFT)
#define ADP5520_LED_ONT_200ms 0
#define ADP5520_LED_ONT_600ms 1
#define ADP5520_LED_ONT_800ms 2
#define ADP5520_LED_ONT_1200ms 3
struct adp5520_leds_platform_data {
int num_leds;
struct led_info *leds;
u8 fade_in; /* Backlight Fade-In Timer */
u8 fade_out; /* Backlight Fade-Out Timer */
u8 led_on_time;
};
/*
* Backlight subdevice platform data
*/
#define ADP5520_FADE_T_DIS 0 /* Fade Timer Disabled */
#define ADP5520_FADE_T_300ms 1 /* 0.3 Sec */
#define ADP5520_FADE_T_600ms 2
#define ADP5520_FADE_T_900ms 3
#define ADP5520_FADE_T_1200ms 4
#define ADP5520_FADE_T_1500ms 5
#define ADP5520_FADE_T_1800ms 6
#define ADP5520_FADE_T_2100ms 7
#define ADP5520_FADE_T_2400ms 8
#define ADP5520_FADE_T_2700ms 9
#define ADP5520_FADE_T_3000ms 10
#define ADP5520_FADE_T_3500ms 11
#define ADP5520_FADE_T_4000ms 12
#define ADP5520_FADE_T_4500ms 13
#define ADP5520_FADE_T_5000ms 14
#define ADP5520_FADE_T_5500ms 15 /* 5.5 Sec */
#define ADP5520_BL_LAW_LINEAR 0
#define ADP5520_BL_LAW_SQUARE 1
#define ADP5520_BL_LAW_CUBIC1 2
#define ADP5520_BL_LAW_CUBIC2 3
#define ADP5520_BL_AMBL_FILT_80ms 0 /* Light sensor filter time */
#define ADP5520_BL_AMBL_FILT_160ms 1
#define ADP5520_BL_AMBL_FILT_320ms 2
#define ADP5520_BL_AMBL_FILT_640ms 3
#define ADP5520_BL_AMBL_FILT_1280ms 4
#define ADP5520_BL_AMBL_FILT_2560ms 5
#define ADP5520_BL_AMBL_FILT_5120ms 6
#define ADP5520_BL_AMBL_FILT_10240ms 7 /* 10.24 sec */
/*
* Blacklight current 0..30mA
*/
#define ADP5520_BL_CUR_mA(I) ((I * 127) / 30)
/*
* L2 comparator current 0..1000uA
*/
#define ADP5520_L2_COMP_CURR_uA(I) ((I * 255) / 1000)
/*
* L3 comparator current 0..127uA
*/
#define ADP5520_L3_COMP_CURR_uA(I) ((I * 255) / 127)
struct adp5520_backlight_platform_data {
u8 fade_in; /* Backlight Fade-In Timer */
u8 fade_out; /* Backlight Fade-Out Timer */
u8 fade_led_law; /* fade-on/fade-off transfer characteristic */
u8 en_ambl_sens; /* 1 = enable ambient light sensor */
u8 abml_filt; /* Light sensor filter time */
u8 l1_daylight_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l1_daylight_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l2_office_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l2_office_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l3_dark_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l3_dark_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l2_trip; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1000 uA */
u8 l2_hyst; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1000 uA */
u8 l3_trip; /* use L3_COMP_CURR_uA(I) 0 <= I <= 127 uA */
u8 l3_hyst; /* use L3_COMP_CURR_uA(I) 0 <= I <= 127 uA */
};
/*
* MFD chip platform data
*/
struct adp5520_platform_data {
struct adp5520_keys_platform_data *keys;
struct adp5520_gpio_platform_data *gpio;
struct adp5520_leds_platform_data *leds;
struct adp5520_backlight_platform_data *backlight;
};
/*
* MFD chip functions
*/
extern int adp5520_read(struct device *dev, int reg, uint8_t *val);
extern int adp5520_write(struct device *dev, int reg, u8 val);
extern int adp5520_clr_bits(struct device *dev, int reg, uint8_t bit_mask);
extern int adp5520_set_bits(struct device *dev, int reg, uint8_t bit_mask);
extern int adp5520_register_notifier(struct device *dev,
struct notifier_block *nb, unsigned int events);
extern int adp5520_unregister_notifier(struct device *dev,
struct notifier_block *nb, unsigned int events);
#endif /* __LINUX_MFD_ADP5520_H */