gpio: sch: 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.

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-3-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-sch.c b/drivers/gpio/gpio-sch.c
index ff0341b1222f7ec2ea0df56b004222946d2418c4..833ffdd98d744948cddc32fd8039a9489a654ab4 100644 (file)
--- a/drivers/gpio/gpio-sch.c
+++ b/drivers/gpio/gpio-sch.c
@@ -117,7 +117,7 @@ static int sch_gpio_get(struct gpio_chip *gc, unsigned int gpio_num)
        return sch_gpio_reg_get(sch, gpio_num, GLV);
 }
 
-static void sch_gpio_set(struct gpio_chip *gc, unsigned int gpio_num, int val)
+static int sch_gpio_set(struct gpio_chip *gc, unsigned int gpio_num, int val)
 {
        struct sch_gpio *sch = gpiochip_get_data(gc);
        unsigned long flags;
@@ -125,6 +125,8 @@ static void sch_gpio_set(struct gpio_chip *gc, unsigned int gpio_num, int val)
        spin_lock_irqsave(&sch->lock, flags);
        sch_gpio_reg_set(sch, gpio_num, GLV, val);
        spin_unlock_irqrestore(&sch->lock, flags);
+
+       return 0;
 }
 
 static int sch_gpio_direction_out(struct gpio_chip *gc, unsigned int gpio_num,
@@ -146,8 +148,7 @@ static int sch_gpio_direction_out(struct gpio_chip *gc, unsigned int gpio_num,
         * But we cannot prevent a short low pulse if direction is set to high
         * and an external pull-up is connected.
         */
-       sch_gpio_set(gc, gpio_num, val);
-       return 0;
+       return sch_gpio_set(gc, gpio_num, val);
 }
 
 static int sch_gpio_get_direction(struct gpio_chip *gc, unsigned int gpio_num)
@@ -166,7 +167,7 @@ static const struct gpio_chip sch_gpio_chip = {
        .direction_input        = sch_gpio_direction_in,
        .get                    = sch_gpio_get,
        .direction_output       = sch_gpio_direction_out,
-       .set                    = sch_gpio_set,
+       .set_rv                 = sch_gpio_set,
        .get_direction          = sch_gpio_get_direction,
 };