Commit 2b50635e authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Lee Jones
Browse files

mfd: max77686/802: Remove support for board files 



The driver is used only on Exynos based boards with DTS support.
After removal of board file support from max77686 and max77802 regulator
drivers, the MFD driver can be converted to DTS-only version. This
simplifies a little the code:
1. No dead (unused) entries in platform_data structure.
2. More code removed.
3. Regulator driver does not depend on allocated memory
   from MFD driver.
4. It makes also easier extending the regulator driver.

Add to the max77686 MFD driver dependency on CONFIG_OF because without
DTS the regulator drivers (max77686 and max77802) won't bind.

Signed-off-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: default avatarJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: default avatarJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 5dd6eeb2

drivers/mfd/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -429,6 +429,7 @@ config MFD_MAX14577 
config MFD_MAX77686

	bool "Maxim Semiconductor MAX77686/802 PMIC Support"

	depends on I2C=y

	depends on OF

	select MFD_CORE

	select REGMAP_I2C

	select REGMAP_IRQ

drivers/mfd/max77686.c

+0 −23
Original line number Diff line number Diff line
@@ -205,24 +205,10 @@ static const struct of_device_id max77686_pmic_dt_match[] = { 
	{ },

};



static struct max77686_platform_data *max77686_i2c_parse_dt_pdata(struct device

								  *dev)

{

	struct max77686_platform_data *pd;



	pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);

	if (!pd)

		return NULL;



	dev->platform_data = pd;

	return pd;

}



static int max77686_i2c_probe(struct i2c_client *i2c,

			      const struct i2c_device_id *id)

{

	struct max77686_dev *max77686 = NULL;

	struct max77686_platform_data *pdata = dev_get_platdata(&i2c->dev);

	const struct of_device_id *match;

	unsigned int data;

	int ret = 0;
@@ -233,14 +219,6 @@ static int max77686_i2c_probe(struct i2c_client *i2c, 
	const struct mfd_cell *cells;

	int n_devs;



	if (IS_ENABLED(CONFIG_OF) && i2c->dev.of_node && !pdata)

		pdata = max77686_i2c_parse_dt_pdata(&i2c->dev);



	if (!pdata) {

		dev_err(&i2c->dev, "No platform data found.\n");

		return -EINVAL;

	}



	max77686 = devm_kzalloc(&i2c->dev,

				sizeof(struct max77686_dev), GFP_KERNEL);

	if (!max77686)
@@ -259,7 +237,6 @@ static int max77686_i2c_probe(struct i2c_client *i2c, 
	max77686->dev = &i2c->dev;

	max77686->i2c = i2c;



	max77686->wakeup = pdata->wakeup;

	max77686->irq = i2c->irq;



	if (max77686->type == TYPE_MAX77686) {

include/linux/mfd/max77686-private.h

+0 −1
Original line number Diff line number Diff line
@@ -447,7 +447,6 @@ struct max77686_dev { 
	struct regmap_irq_chip_data *rtc_irq_data;



	int irq;

	bool wakeup;

	struct mutex irqlock;

	int irq_masks_cur[MAX77686_IRQ_GROUP_NR];

	int irq_masks_cache[MAX77686_IRQ_GROUP_NR];

include/linux/mfd/max77686.h

+0 −28
Original line number Diff line number Diff line
@@ -119,12 +119,6 @@ enum max77802_regulators { 
	MAX77802_REG_MAX,

};



struct max77686_regulator_data {

	int id;

	struct regulator_init_data *initdata;

	struct device_node *of_node;

};



enum max77686_opmode {

	MAX77686_OPMODE_NORMAL,

	MAX77686_OPMODE_LP,
@@ -136,26 +130,4 @@ struct max77686_opmode_data { 
	int mode;

};



struct max77686_platform_data {

	int ono;

	int wakeup;



	/* ---- PMIC ---- */

	struct max77686_regulator_data *regulators;

	int num_regulators;



	struct max77686_opmode_data *opmode_data;



	/*

	 * GPIO-DVS feature is not enabled with the current version of

	 * MAX77686 driver. Buck2/3/4_voltages[0] is used as the default

	 * voltage at probe. DVS/SELB gpios are set as OUTPUT-LOW.

	 */

	int buck234_gpio_dvs[3]; /* GPIO of [0]DVS1, [1]DVS2, [2]DVS3 */

	int buck234_gpio_selb[3]; /* [0]SELB2, [1]SELB3, [2]SELB4 */

	unsigned int buck2_voltage[8]; /* buckx_voltage in uV */

	unsigned int buck3_voltage[8];

	unsigned int buck4_voltage[8];

};



#endif /* __LINUX_MFD_MAX77686_H */

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