[PATCH v2 09/12] gpio: reg: 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-reg.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-reg.c b/drivers/gpio/gpio-reg.c
index 73c7260d89c083a702b1d914ddca7a573a37de4a..557dd77ce30bbca6174babbcabc965cdcec57896 100644
--- a/drivers/gpio/gpio-reg.c
+++ b/drivers/gpio/gpio-reg.c
@@ -46,7 +46,7 @@ static int gpio_reg_direction_output(struct gpio_chip *gc, unsigned offset,
 	if (r->direction & BIT(offset))
 		return -ENOTSUPP;
 
-	gc->set(gc, offset, value);
+	gc->set_rv(gc, offset, value);
 	return 0;
 }
 
@@ -57,7 +57,7 @@ static int gpio_reg_direction_input(struct gpio_chip *gc, unsigned offset)
 	return r->direction & BIT(offset) ? 0 : -ENOTSUPP;
 }
 
-static void gpio_reg_set(struct gpio_chip *gc, unsigned offset, int value)
+static int gpio_reg_set(struct gpio_chip *gc, unsigned int offset, int value)
 {
 	struct gpio_reg *r = to_gpio_reg(gc);
 	unsigned long flags;
@@ -72,6 +72,8 @@ static void gpio_reg_set(struct gpio_chip *gc, unsigned offset, int value)
 	r->out = val;
 	writel_relaxed(val, r->reg);
 	spin_unlock_irqrestore(&r->lock, flags);
+
+	return 0;
 }
 
 static int gpio_reg_get(struct gpio_chip *gc, unsigned offset)
@@ -157,7 +159,7 @@ struct gpio_chip *gpio_reg_init(struct device *dev, void __iomem *reg,
 	r->gc.get_direction = gpio_reg_get_direction;
 	r->gc.direction_input = gpio_reg_direction_input;
 	r->gc.direction_output = gpio_reg_direction_output;
-	r->gc.set = gpio_reg_set;
+	r->gc.set_rv = gpio_reg_set;
 	r->gc.get = gpio_reg_get;
 	r->gc.set_multiple = gpio_reg_set_multiple;
 	if (irqs)

-- 
2.48.1