[PATCH] gpio: rcar: Use new line value setter callbacks

[Geert Uytterhoeven <geert+renesas@xxxxxxxxx>]

struct gpio_chip now has callbacks for setting line values that return
integers, so they can indicate failures.  Convert the driver to using
them.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
 drivers/gpio/gpio-rcar.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index 4fc7cad5032a7a80..130aa0cac186d0cb 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -359,7 +359,7 @@ static int gpio_rcar_get_multiple(struct gpio_chip *chip, unsigned long *mask,
 	return 0;
 }
 
-static void gpio_rcar_set(struct gpio_chip *chip, unsigned offset, int value)
+static int gpio_rcar_set(struct gpio_chip *chip, unsigned int offset, int value)
 {
 	struct gpio_rcar_priv *p = gpiochip_get_data(chip);
 	unsigned long flags;
@@ -367,10 +367,12 @@ static void gpio_rcar_set(struct gpio_chip *chip, unsigned offset, int value)
 	raw_spin_lock_irqsave(&p->lock, flags);
 	gpio_rcar_modify_bit(p, OUTDT, offset, value);
 	raw_spin_unlock_irqrestore(&p->lock, flags);
+
+	return 0;
 }
 
-static void gpio_rcar_set_multiple(struct gpio_chip *chip, unsigned long *mask,
-				   unsigned long *bits)
+static int gpio_rcar_set_multiple(struct gpio_chip *chip, unsigned long *mask,
+				  unsigned long *bits)
 {
 	struct gpio_rcar_priv *p = gpiochip_get_data(chip);
 	unsigned long flags;
@@ -378,7 +380,7 @@ static void gpio_rcar_set_multiple(struct gpio_chip *chip, unsigned long *mask,
 
 	bankmask = mask[0] & GENMASK(chip->ngpio - 1, 0);
 	if (!bankmask)
-		return;
+		return 0;
 
 	raw_spin_lock_irqsave(&p->lock, flags);
 	val = gpio_rcar_read(p, OUTDT);
@@ -386,6 +388,8 @@ static void gpio_rcar_set_multiple(struct gpio_chip *chip, unsigned long *mask,
 	val |= (bankmask & bits[0]);
 	gpio_rcar_write(p, OUTDT, val);
 	raw_spin_unlock_irqrestore(&p->lock, flags);
+
+	return 0;
 }
 
 static int gpio_rcar_direction_output(struct gpio_chip *chip, unsigned offset,
@@ -537,8 +541,8 @@ static int gpio_rcar_probe(struct platform_device *pdev)
 	gpio_chip->get = gpio_rcar_get;
 	gpio_chip->get_multiple = gpio_rcar_get_multiple;
 	gpio_chip->direction_output = gpio_rcar_direction_output;
-	gpio_chip->set = gpio_rcar_set;
-	gpio_chip->set_multiple = gpio_rcar_set_multiple;
+	gpio_chip->set_rv = gpio_rcar_set;
+	gpio_chip->set_multiple_rv = gpio_rcar_set_multiple;
 	gpio_chip->label = name;
 	gpio_chip->parent = dev;
 	gpio_chip->owner = THIS_MODULE;