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Input: adp5588-keys - add regulator support

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Support feeding VCC through a regulator.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220829131553.690063-10-nuno.sa@analog.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Nuno Sá 2022-08-30 21:13:10 -07:00 committed by Dmitry Torokhov
parent cfacae5864
commit 73d4a5423e
1 changed files with 20 additions and 0 deletions
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20
drivers/input/keyboard/adp5588-keys.c
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@ -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);