[PATCH 08/12] gpio: twl6040: use new GPIO line value setter callbacks

[Bartosz Golaszewski <brgl@bgdev.pl>]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 drivers/gpio/gpio-twl6040.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-twl6040.c b/drivers/gpio/gpio-twl6040.c
index b9171bf66168f054e9eddef8417bef6d8f197f3c..b9c0d54d12f43242444f12a2bd8b6988d1511466 100644
--- a/drivers/gpio/gpio-twl6040.c
+++ b/drivers/gpio/gpio-twl6040.c
@@ -44,7 +44,8 @@ static int twl6040gpo_direction_out(struct gpio_chip *chip, unsigned offset,
 	return 0;
 }
 
-static void twl6040gpo_set(struct gpio_chip *chip, unsigned offset, int value)
+static int twl6040gpo_set(struct gpio_chip *chip, unsigned int offset,
+			  int value)
 {
 	struct twl6040 *twl6040 = gpiochip_get_data(chip);
 	int ret;
@@ -52,14 +53,14 @@ static void twl6040gpo_set(struct gpio_chip *chip, unsigned offset, int value)
 
 	ret = twl6040_reg_read(twl6040, TWL6040_REG_GPOCTL);
 	if (ret < 0)
-		return;
+		return ret;
 
 	if (value)
 		gpoctl = ret | BIT(offset);
 	else
 		gpoctl = ret & ~BIT(offset);
 
-	twl6040_reg_write(twl6040, TWL6040_REG_GPOCTL, gpoctl);
+	return twl6040_reg_write(twl6040, TWL6040_REG_GPOCTL, gpoctl);
 }
 
 static struct gpio_chip twl6040gpo_chip = {
@@ -68,7 +69,7 @@ static struct gpio_chip twl6040gpo_chip = {
 	.get			= twl6040gpo_get,
 	.direction_output	= twl6040gpo_direction_out,
 	.get_direction		= twl6040gpo_get_direction,
-	.set			= twl6040gpo_set,
+	.set_rv			= twl6040gpo_set,
 	.can_sleep		= true,
 };
 

-- 
2.48.1