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authorBartosz Golaszewski <bartosz.golaszewski@linaro.org>2025-07-09 08:41:52 +0200
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2025-07-15 09:54:42 +0200
commit383a02f6d421bf7703703aeb3e7270426b2fc30c (patch)
tree19b996ec55371f40c187b6e0f50f531c84abd3ee
parent735ddc67ab88d35378cb79cfa5ac5f87db0775fb (diff)
gpio: xtensa: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-15-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
-rw-r--r--drivers/gpio/gpio-xtensa.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-xtensa.c b/drivers/gpio/gpio-xtensa.c
index 341b691ac234..e7ff3c60324d 100644
--- a/drivers/gpio/gpio-xtensa.c
+++ b/drivers/gpio/gpio-xtensa.c
@@ -103,7 +103,7 @@ static int xtensa_expstate_get_value(struct gpio_chip *gc, unsigned offset)
return !!(expstate & BIT(offset));
}
-static void xtensa_expstate_set_value(struct gpio_chip *gc, unsigned offset,
+static int xtensa_expstate_set_value(struct gpio_chip *gc, unsigned int offset,
int value)
{
unsigned long flags, saved_cpenable;
@@ -114,6 +114,8 @@ static void xtensa_expstate_set_value(struct gpio_chip *gc, unsigned offset,
__asm__ __volatile__("wrmsk_expstate %0, %1"
:: "a" (val), "a" (mask));
disable_cp(flags, saved_cpenable);
+
+ return 0;
}
static struct gpio_chip impwire_chip = {
@@ -130,7 +132,7 @@ static struct gpio_chip expstate_chip = {
.ngpio = 32,
.get_direction = xtensa_expstate_get_direction,
.get = xtensa_expstate_get_value,
- .set = xtensa_expstate_set_value,
+ .set_rv = xtensa_expstate_set_value,
};
static int xtensa_gpio_probe(struct platform_device *pdev)