[PATCH v2 2/2] 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>
---
v2:
  - Rebase.
---
 drivers/gpio/gpio-rcar.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index 8416e0430887bd5e..1d121a4275905e09 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -356,7 +356,7 @@ 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;
@@ -364,10 +364,12 @@ 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)
 {
 	u32 bankmask = mask[0] & GENMASK(chip->ngpio - 1, 0);
 	struct gpio_rcar_priv *p = gpiochip_get_data(chip);
@@ -380,6 +382,8 @@ 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,
@@ -531,8 +535,8 @@ 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;
-- 
2.43.0