Commit 73d4a542 authored by Nuno Sá's avatar Nuno Sá Committed by Dmitry Torokhov
Browse files

Input: adp5588-keys - add regulator support 



Support feeding VCC through a regulator.

Signed-off-by: default avatarNuno Sá <nuno.sa@analog.com>
Reviewed-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220829131553.690063-10-nuno.sa@analog.com


Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent cfacae58

drivers/input/keyboard/adp5588-keys.c

+20 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ 
#include <linux/pinctrl/pinconf-generic.h>

#include <linux/platform_device.h>

#include <linux/pm.h>

#include <linux/regulator/consumer.h>

#include <linux/slab.h>

#include <linux/timekeeping.h>
@@ -712,12 +713,18 @@ static int adp5588_fw_parse(struct adp5588_kpad *kpad) 
	return 0;

}



static void adp5588_disable_regulator(void *reg)

{

	regulator_disable(reg);

}



static int adp5588_probe(struct i2c_client *client,

			 const struct i2c_device_id *id)

{

	struct adp5588_kpad *kpad;

	struct input_dev *input;

	struct gpio_desc *gpio;

	struct regulator *vcc;

	unsigned int revid;

	int ret;

	int error;
@@ -743,6 +750,19 @@ static int adp5588_probe(struct i2c_client *client, 
	if (error)

		return error;



	vcc = devm_regulator_get(&client->dev, "vcc");

	if (IS_ERR(vcc))

		return PTR_ERR(vcc);



	error = regulator_enable(vcc);

	if (error)

		return error;



	error = devm_add_action_or_reset(&client->dev,

					 adp5588_disable_regulator, vcc);

	if (error)

		return error;



	gpio = devm_gpiod_get_optional(&client->dev, "reset", GPIOD_OUT_HIGH);

	if (IS_ERR(gpio))

		return PTR_ERR(gpio);