[PATCH 01/15] gpio: 74x164: 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-74x164.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index 640ac24b72a2..4dd5c2c330bb 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -50,8 +50,8 @@ static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset)
 	return !!(chip->buffer[bank] & BIT(pin));
 }
 
-static void gen_74x164_set_value(struct gpio_chip *gc,
-		unsigned offset, int val)
+static int gen_74x164_set_value(struct gpio_chip *gc,
+				unsigned int offset, int val)
 {
 	struct gen_74x164_chip *chip = gpiochip_get_data(gc);
 	u8 bank = chip->registers - 1 - offset / 8;
@@ -64,11 +64,11 @@ static void gen_74x164_set_value(struct gpio_chip *gc,
 	else
 		chip->buffer[bank] &= ~BIT(pin);
 
-	__gen_74x164_write_config(chip);
+	return __gen_74x164_write_config(chip);
 }
 
-static void gen_74x164_set_multiple(struct gpio_chip *gc, unsigned long *mask,
-				    unsigned long *bits)
+static int gen_74x164_set_multiple(struct gpio_chip *gc, unsigned long *mask,
+				   unsigned long *bits)
 {
 	struct gen_74x164_chip *chip = gpiochip_get_data(gc);
 	unsigned long offset;
@@ -85,7 +85,7 @@ static void gen_74x164_set_multiple(struct gpio_chip *gc, unsigned long *mask,
 		chip->buffer[bank] &= ~bankmask;
 		chip->buffer[bank] |= bitmask;
 	}
-	__gen_74x164_write_config(chip);
+	return __gen_74x164_write_config(chip);
 }
 
 static int gen_74x164_direction_output(struct gpio_chip *gc,
@@ -141,8 +141,8 @@ static int gen_74x164_probe(struct spi_device *spi)
 	chip->gpio_chip.label = spi->modalias;
 	chip->gpio_chip.direction_output = gen_74x164_direction_output;
 	chip->gpio_chip.get = gen_74x164_get_value;
-	chip->gpio_chip.set = gen_74x164_set_value;
-	chip->gpio_chip.set_multiple = gen_74x164_set_multiple;
+	chip->gpio_chip.set_rv = gen_74x164_set_value;
+	chip->gpio_chip.set_multiple_rv = gen_74x164_set_multiple;
 	chip->gpio_chip.base = -1;
 	chip->gpio_chip.ngpio = GEN_74X164_NUMBER_GPIOS * chip->registers;
 	chip->gpio_chip.can_sleep = true;

-- 
2.45.2