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regulator: sy7636a: Store the epd-pwr-good GPIO locally 

Instead of storing the GPIO state in the mfd (where it isn't used) store
it in the regulator.

Signed-off-by: Alistair Francis <alistair@alistair23.me>
Link: https://lore.kernel.org/r/20210803084456.198-7-alistair@alistair23.me
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Alistair Francis 2021-08-03 18:44:54 +10:00 committed by Mark Brown
parent 4cafe1aeb5
commit d38d49b140
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 16 additions and 5 deletions
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21
drivers/regulator/sy7636a-regulator.c
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@ -13,6 +13,11 @@
#include <linux/gpio/consumer.h>
#include <linux/mfd/sy7636a.h>
struct sy7636a_data {
struct sy7636a *sy7636a;
struct gpio_desc *pgood_gpio;
};
static int sy7636a_get_vcom_voltage_op(struct regulator_dev *rdev)
{
int ret;
@ -33,10 +38,10 @@ static int sy7636a_get_vcom_voltage_op(struct regulator_dev *rdev)
static int sy7636a_get_status(struct regulator_dev *rdev)
{
struct sy7636a *sy7636a = dev_get_drvdata(rdev->dev.parent);
struct sy7636a_data *data = dev_get_drvdata(rdev->dev.parent);
int ret = 0;
ret = gpiod_get_value_cansleep(sy7636a->pgood_gpio);
ret = gpiod_get_value_cansleep(data->pgood_gpio);
if (ret < 0)
dev_err(&rdev->dev, "Failed to read pgood gpio: %d\n", ret);
@ -69,20 +74,26 @@ static int sy7636a_regulator_probe(struct platform_device *pdev)
struct regulator_config config = { };
struct regulator_dev *rdev;
struct gpio_desc *gdp;
struct sy7636a_data *data;
int ret;
if (!sy7636a)
return -EPROBE_DEFER;
platform_set_drvdata(pdev, sy7636a);
gdp = devm_gpiod_get(pdev->dev.parent, "epd-pwr-good", GPIOD_IN);
if (IS_ERR(gdp)) {
dev_err(pdev->dev.parent, "Power good GPIO fault %ld\n", PTR_ERR(gdp));
return PTR_ERR(gdp);
}
sy7636a->pgood_gpio = gdp;
data = devm_kzalloc(&pdev->dev, sizeof(struct sy7636a_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->sy7636a = sy7636a;
data->pgood_gpio = gdp;
platform_set_drvdata(pdev, data);
ret = regmap_write(sy7636a->regmap, SY7636A_REG_POWER_ON_DELAY_TIME, 0x0);
if (ret) {