[PATCH 09/12] gpio: npcm-sgpio: 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-npcm-sgpio.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-npcm-sgpio.c b/drivers/gpio/gpio-npcm-sgpio.c
index 26057061454348d383129267e8bb0b8c506ea5c1..b3953d1ae8af45f4bce9b799434547cd8770d9df 100644
--- a/drivers/gpio/gpio-npcm-sgpio.c
+++ b/drivers/gpio/gpio-npcm-sgpio.c
@@ -226,7 +226,7 @@ static int npcm_sgpio_get_direction(struct gpio_chip *gc, unsigned int offset)
 	return GPIO_LINE_DIRECTION_IN;
 }
 
-static void npcm_sgpio_set(struct gpio_chip *gc, unsigned int offset, int val)
+static int npcm_sgpio_set(struct gpio_chip *gc, unsigned int offset, int val)
 {
 	struct npcm_sgpio *gpio = gpiochip_get_data(gc);
 	const struct  npcm_sgpio_bank *bank = offset_to_bank(offset);
@@ -242,6 +242,8 @@ static void npcm_sgpio_set(struct gpio_chip *gc, unsigned int offset, int val)
 		reg &= ~BIT(GPIO_BIT(offset));
 
 	iowrite8(reg, addr);
+
+	return 0;
 }
 
 static int npcm_sgpio_get(struct gpio_chip *gc, unsigned int offset)
@@ -546,7 +548,7 @@ static int npcm_sgpio_probe(struct platform_device *pdev)
 	gpio->chip.direction_output = npcm_sgpio_dir_out;
 	gpio->chip.get_direction = npcm_sgpio_get_direction;
 	gpio->chip.get = npcm_sgpio_get;
-	gpio->chip.set = npcm_sgpio_set;
+	gpio->chip.set_rv = npcm_sgpio_set;
 	gpio->chip.label = dev_name(&pdev->dev);
 	gpio->chip.base = -1;
 

-- 
2.48.1