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pinctrl: lpass-lpi: implement .get_direction() for the GPIO driver

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GPIO controller driver should typically implement the .get_direction()
callback as GPIOLIB internals may try to use it to determine the state
of a pin. Add it for the LPASS LPI driver.

Reported-by: Abel Vesa <abelvesa@kernel.org>
Cc: stable@vger.kernel.org
Fixes: 6e261d1090 ("pinctrl: qcom: Add sm8250 lpass lpi pinctrl driver")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Tested-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> # X1E CRD
Tested-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
This commit is contained in:
Bartosz Golaszewski 2026-01-26 14:56:27 +01:00 committed by Linus Walleij
parent 304c3ebcaf
commit 4f0d22ec60
1 changed files with 17 additions and 0 deletions
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17
drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
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@ -312,6 +312,22 @@ static const struct pinconf_ops lpi_gpio_pinconf_ops = {
.pin_config_group_set = lpi_config_set,
};
static int lpi_gpio_get_direction(struct gpio_chip *chip, unsigned int pin)
{
unsigned long config = pinconf_to_config_packed(PIN_CONFIG_LEVEL, 0);
struct lpi_pinctrl *state = gpiochip_get_data(chip);
unsigned long arg;
int ret;
ret = lpi_config_get(state->ctrl, pin, &config);
if (ret)
return ret;
arg = pinconf_to_config_argument(config);
return arg ? GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
}
static int lpi_gpio_direction_input(struct gpio_chip *chip, unsigned int pin)
{
struct lpi_pinctrl *state = gpiochip_get_data(chip);
@ -409,6 +425,7 @@ static void lpi_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
#endif
static const struct gpio_chip lpi_gpio_template = {
.get_direction = lpi_gpio_get_direction,
.direction_input = lpi_gpio_direction_input,
.direction_output = lpi_gpio_direction_output,
.get = lpi_gpio_get,