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gpio: pl061: use the generic request/free implementations 

Instead of storing in the chip data whether the chip uses pinctrl and
conditionally call pinctrl_{request,free}_gpio, just don't populate
request/free in that case.

This makes the implementations trivial and the same as the generic
implementations, thus we can just use them.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Jonas Gorski 2015-10-11 17:34:18 +02:00 committed by Linus Walleij
parent da4002ee90
commit 31831f41bf
1 changed files with 4 additions and 28 deletions
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32
drivers/gpio/gpio-pl061.c
View File

@ -52,36 +52,12 @@ struct pl061_gpio {
void __iomem *base;
struct gpio_chip gc;
bool uses_pinctrl;
#ifdef CONFIG_PM
struct pl061_context_save_regs csave_regs;
#endif
};
static int pl061_gpio_request(struct gpio_chip *gc, unsigned offset)
{
/*
* Map back to global GPIO space and request muxing, the direction
* parameter does not matter for this controller.
*/
struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc);
int gpio = gc->base + offset;
if (chip->uses_pinctrl)
return pinctrl_request_gpio(gpio);
return 0;
}
static void pl061_gpio_free(struct gpio_chip *gc, unsigned offset)
{
struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc);
int gpio = gc->base + offset;
if (chip->uses_pinctrl)
pinctrl_free_gpio(gpio);
}
static int pl061_direction_input(struct gpio_chip *gc, unsigned offset)
{
struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc);
@ -329,11 +305,11 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
return PTR_ERR(chip->base);
spin_lock_init(&chip->lock);
if (of_property_read_bool(dev->of_node, "gpio-ranges"))
chip->uses_pinctrl = true;
if (of_property_read_bool(dev->of_node, "gpio-ranges")) {
chip->gc.request = gpiochip_generic_request;
chip->gc.free = gpiochip_generic_free;
}
chip->gc.request = pl061_gpio_request;
chip->gc.free = pl061_gpio_free;
chip->gc.direction_input = pl061_direction_input;
chip->gc.direction_output = pl061_direction_output;
chip->gc.get = pl061_get_value;