gpio: it87: use new 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.

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-5-b22245cde81a@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-it87.c b/drivers/gpio/gpio-it87.c
index f332341fd4c87e93ae3e4414ddcd6618ad6b42a4..d8184b527bac9baedeb21e6f20622e656caa6e59 100644 (file)
--- a/drivers/gpio/gpio-it87.c
+++ b/drivers/gpio/gpio-it87.c
@@ -213,8 +213,7 @@ exit:
        return rc;
 }
 
-static void it87_gpio_set(struct gpio_chip *chip,
-                         unsigned gpio_num, int val)
+static int it87_gpio_set(struct gpio_chip *chip, unsigned int gpio_num, int val)
 {
        u8 mask, curr_vals;
        u16 reg;
@@ -228,6 +227,8 @@ static void it87_gpio_set(struct gpio_chip *chip,
                outb(curr_vals | mask, reg);
        else
                outb(curr_vals & ~mask, reg);
+
+       return 0;
 }
 
 static int it87_gpio_direction_out(struct gpio_chip *chip,
@@ -249,7 +250,9 @@ static int it87_gpio_direction_out(struct gpio_chip *chip,
        /* set the output enable bit */
        superio_set_mask(mask, group + it87_gpio->output_base);
 
-       it87_gpio_set(chip, gpio_num, val);
+       rc = it87_gpio_set(chip, gpio_num, val);
+       if (rc)
+               goto exit;
 
        superio_exit();
 
@@ -264,7 +267,7 @@ static const struct gpio_chip it87_template_chip = {
        .request                = it87_gpio_request,
        .get                    = it87_gpio_get,
        .direction_input        = it87_gpio_direction_in,
-       .set                    = it87_gpio_set,
+       .set_rv                 = it87_gpio_set,
        .direction_output       = it87_gpio_direction_out,
        .base                   = -1
 };