[PATCH 07/12] gpio: kempld: use new 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-kempld.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-kempld.c b/drivers/gpio/gpio-kempld.c
index 4ea15f08e0f4..e38e604baa22 100644
--- a/drivers/gpio/gpio-kempld.c
+++ b/drivers/gpio/gpio-kempld.c
@@ -63,7 +63,8 @@ static int kempld_gpio_get(struct gpio_chip *chip, unsigned offset)
 	return !!kempld_gpio_get_bit(pld, KEMPLD_GPIO_LVL_NUM(offset), offset);
 }
 
-static void kempld_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int kempld_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			   int value)
 {
 	struct kempld_gpio_data *gpio = gpiochip_get_data(chip);
 	struct kempld_device_data *pld = gpio->pld;
@@ -71,6 +72,8 @@ static void kempld_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 	kempld_get_mutex(pld);
 	kempld_gpio_bitop(pld, KEMPLD_GPIO_LVL_NUM(offset), offset, value);
 	kempld_release_mutex(pld);
+
+	return 0;
 }
 
 static int kempld_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
@@ -166,7 +169,7 @@ static int kempld_gpio_probe(struct platform_device *pdev)
 	chip->direction_output = kempld_gpio_direction_output;
 	chip->get_direction = kempld_gpio_get_direction;
 	chip->get = kempld_gpio_get;
-	chip->set = kempld_gpio_set;
+	chip->set_rv = kempld_gpio_set;
 	chip->ngpio = kempld_gpio_pincount(pld);
 	if (chip->ngpio == 0) {
 		dev_err(dev, "No GPIO pins detected\n");

-- 
2.45.2