Date:	Fri, 9 Oct 2009 17:36:24 +0200
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Mike Frysinger <vapier@...too.org>
Cc:	linux-kernel@...r.kernel.org,
	uclinux-dist-devel@...ckfin.uclinux.org,
	Michael Hennerich <michael.hennerich@...log.com>,
	Bryan Wu <cooloney@...nel.org>
Subject: Re: [PATCH v4] mfd: ADP5520 Multifunction LCD Backlight and Keypad
 Input Device Driver

On Thu, Oct 08, 2009 at 03:58:47AM -0400, Mike Frysinger wrote:
> From: Michael Hennerich <michael.hennerich@...log.com>
> 
> Base driver for Analog Devices ADP5520/ADP5501 MFD PMICs
> 
> Subdevs:
> 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)
> 
> Signed-off-by: Michael Hennerich <michael.hennerich@...log.com>
> Signed-off-by: Bryan Wu <cooloney@...nel.org>
> Signed-off-by: Mike Frysinger <vapier@...too.org>
With your mfd core patch applied, adp5520-gpio.c and adp5520_bl.c are supposed
to be buildable. Unfortunately, they both give build errors.
So, you either provide me with a patch that fixes both of those, and I carry
it with my mfd patchset, or you get your fixes applied upstream and I apply
the mfd core patch after that.

Cheers,
Samuel.


> ---
> v4
> 	- fix platform typo and namespace common defines
> 
>  drivers/mfd/Kconfig         |   10 ++
>  drivers/mfd/Makefile        |    1 +
>  drivers/mfd/adp5520.c       |  378 +++++++++++++++++++++++++++++++++++++++++++
>  include/linux/mfd/adp5520.h |  299 ++++++++++++++++++++++++++++++++++
>  4 files changed, 688 insertions(+), 0 deletions(-)
>  create mode 100644 drivers/mfd/adp5520.c
>  create mode 100644 include/linux/mfd/adp5520.h
> 
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 570be13..34e8595 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -160,6 +160,16 @@ 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
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index f3b277b..a42248e 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -50,3 +50,4 @@ obj-$(CONFIG_PCF50633_ADC)	+= pcf50633-adc.o
>  obj-$(CONFIG_PCF50633_GPIO)	+= pcf50633-gpio.o
>  obj-$(CONFIG_AB3100_CORE)	+= ab3100-core.o
>  obj-$(CONFIG_AB3100_OTP)	+= ab3100-otp.o
> +obj-$(CONFIG_PMIC_ADP5520)	+= adp5520.o
> diff --git a/drivers/mfd/adp5520.c b/drivers/mfd/adp5520.c
> new file mode 100644
> index 0000000..401a9b6
> --- /dev/null
> +++ b/drivers/mfd/adp5520.c
> @@ -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@...pulab.co.il>
> + *
> + * Copyright (C) 2006-2008 Marvell International Ltd.
> + * 	Eric Miao <eric.miao@...vell.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@...ckfin.uclinux.org>");
> +MODULE_DESCRIPTION("ADP5520(01) PMIC-MFD Driver");
> +MODULE_LICENSE("GPL");
> diff --git a/include/linux/mfd/adp5520.h b/include/linux/mfd/adp5520.h
> new file mode 100644
> index 0000000..ac37558
> --- /dev/null
> +++ b/include/linux/mfd/adp5520.h
> @@ -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 */
> -- 
> 1.6.5.rc2
> 

-- 
Intel Open Source Technology Centre
http://oss.intel.com/
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