gpio: stmpe: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-8-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c
index dce8ff322e4722f6f97a9850772c7fe7defd9989..0a270156e0bea2f2a6914da6743df6d15b0870f5 100644 (file)
--- a/drivers/gpio/gpio-stmpe.c
+++ b/drivers/gpio/gpio-stmpe.c
@@ -54,7 +54,7 @@ static int stmpe_gpio_get(struct gpio_chip *chip, unsigned offset)
        return !!(ret & mask);
 }
 
-static void stmpe_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
+static int stmpe_gpio_set(struct gpio_chip *chip, unsigned int offset, int val)
 {
        struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(chip);
        struct stmpe *stmpe = stmpe_gpio->stmpe;
@@ -67,9 +67,9 @@ static void stmpe_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
         * For them we need to write 0 to clear and 1 to set.
         */
        if (stmpe->regs[STMPE_IDX_GPSR_LSB] == stmpe->regs[STMPE_IDX_GPCR_LSB])
-               stmpe_set_bits(stmpe, reg, mask, val ? mask : 0);
-       else
-               stmpe_reg_write(stmpe, reg, mask);
+               return stmpe_set_bits(stmpe, reg, mask, val ? mask : 0);
+
+       return stmpe_reg_write(stmpe, reg, mask);
 }
 
 static int stmpe_gpio_get_direction(struct gpio_chip *chip,
@@ -98,8 +98,11 @@ static int stmpe_gpio_direction_output(struct gpio_chip *chip,
        struct stmpe *stmpe = stmpe_gpio->stmpe;
        u8 reg = stmpe->regs[STMPE_IDX_GPDR_LSB + (offset / 8)];
        u8 mask = BIT(offset % 8);
+       int ret;
 
-       stmpe_gpio_set(chip, offset, val);
+       ret = stmpe_gpio_set(chip, offset, val);
+       if (ret)
+               return ret;
 
        return stmpe_set_bits(stmpe, reg, mask, mask);
 }
@@ -133,7 +136,7 @@ static const struct gpio_chip template_chip = {
        .direction_input        = stmpe_gpio_direction_input,
        .get                    = stmpe_gpio_get,
        .direction_output       = stmpe_gpio_direction_output,
-       .set                    = stmpe_gpio_set,
+       .set_rv                 = stmpe_gpio_set,
        .request                = stmpe_gpio_request,
        .can_sleep              = true,
 };