gpio: tpic2810: 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/20250702-gpiochip-set-rv-gpio-round3-v1-7-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-tpic2810.c b/drivers/gpio/gpio-tpic2810.c
index e99725bd3d63d47ed6dbb800aacac14b1ee96b9c..d5b8568ab0613be56965448277704336fd520090 100644 (file)
--- a/drivers/gpio/gpio-tpic2810.c
+++ b/drivers/gpio/gpio-tpic2810.c
@@ -25,7 +25,7 @@ struct tpic2810 {
        struct mutex lock;
 };
 
-static void tpic2810_set(struct gpio_chip *chip, unsigned offset, int value);
+static int tpic2810_set(struct gpio_chip *chip, unsigned int offset, int value);
 
 static int tpic2810_get_direction(struct gpio_chip *chip,
                                  unsigned offset)
@@ -38,8 +38,7 @@ static int tpic2810_direction_output(struct gpio_chip *chip,
                                     unsigned offset, int value)
 {
        /* This device always output */
-       tpic2810_set(chip, offset, value);
-       return 0;
+       return tpic2810_set(chip, offset, value);
 }
 
 static void tpic2810_set_mask_bits(struct gpio_chip *chip, u8 mask, u8 bits)
@@ -61,15 +60,19 @@ static void tpic2810_set_mask_bits(struct gpio_chip *chip, u8 mask, u8 bits)
        mutex_unlock(&gpio->lock);
 }
 
-static void tpic2810_set(struct gpio_chip *chip, unsigned offset, int value)
+static int tpic2810_set(struct gpio_chip *chip, unsigned int offset, int value)
 {
        tpic2810_set_mask_bits(chip, BIT(offset), value ? BIT(offset) : 0);
+
+       return 0;
 }
 
-static void tpic2810_set_multiple(struct gpio_chip *chip, unsigned long *mask,
-                                 unsigned long *bits)
+static int tpic2810_set_multiple(struct gpio_chip *chip, unsigned long *mask,
+                                unsigned long *bits)
 {
        tpic2810_set_mask_bits(chip, *mask, *bits);
+
+       return 0;
 }
 
 static const struct gpio_chip template_chip = {
@@ -77,8 +80,8 @@ static const struct gpio_chip template_chip = {
        .owner                  = THIS_MODULE,
        .get_direction          = tpic2810_get_direction,
        .direction_output       = tpic2810_direction_output,
-       .set                    = tpic2810_set,
-       .set_multiple           = tpic2810_set_multiple,
+       .set_rv                 = tpic2810_set,
+       .set_multiple_rv        = tpic2810_set_multiple,
        .base                   = -1,
        .ngpio                  = 8,
        .can_sleep              = true,