[PATCH v2 03/12] gpio: pch: 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-pch.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index 63f25c72eac2fb98156eb7682e780247a893d7e7..c6f313342ba06a1386d8ff8a882c9344a9e809e7 100644
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -99,7 +99,7 @@ struct pch_gpio {
 	spinlock_t spinlock;
 };
 
-static void pch_gpio_set(struct gpio_chip *gpio, unsigned int nr, int val)
+static int pch_gpio_set(struct gpio_chip *gpio, unsigned int nr, int val)
 {
 	u32 reg_val;
 	struct pch_gpio *chip =	gpiochip_get_data(gpio);
@@ -114,6 +114,8 @@ static void pch_gpio_set(struct gpio_chip *gpio, unsigned int nr, int val)
 
 	iowrite32(reg_val, &chip->reg->po);
 	spin_unlock_irqrestore(&chip->spinlock, flags);
+
+	return 0;
 }
 
 static int pch_gpio_get(struct gpio_chip *gpio, unsigned int nr)
@@ -217,7 +219,7 @@ static void pch_gpio_setup(struct pch_gpio *chip)
 	gpio->direction_input = pch_gpio_direction_input;
 	gpio->get = pch_gpio_get;
 	gpio->direction_output = pch_gpio_direction_output;
-	gpio->set = pch_gpio_set;
+	gpio->set_rv = pch_gpio_set;
 	gpio->base = -1;
 	gpio->ngpio = gpio_pins[chip->ioh];
 	gpio->can_sleep = false;

-- 
2.48.1