leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

pinctrl: nomadik: implement .get_direction()

Browse Source 
This makes the Nomadik gpiochip support the .get_direction()
callback.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2016-04-28 14:33:17 +02:00
parent 5e81e0a091
commit 67668a57b3
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/pinctrl/nomadik/pinctrl-nomadik.c
View File

@ -861,6 +861,20 @@ static void nmk_gpio_latent_irq_handler(struct irq_desc *desc)
/* I/O Functions */
static int nmk_gpio_get_dir(struct gpio_chip *chip, unsigned offset)
{
struct nmk_gpio_chip *nmk_chip = gpiochip_get_data(chip);
int dir;
clk_enable(nmk_chip->clk);
dir = !!(readl(nmk_chip->addr + NMK_GPIO_DIR) & BIT(offset));
clk_disable(nmk_chip->clk);
return dir;
}
static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset)
{
struct nmk_gpio_chip *nmk_chip = gpiochip_get_data(chip);
@ -1220,6 +1234,7 @@ static int nmk_gpio_probe(struct platform_device *dev)
chip = &nmk_chip->chip;
chip->request = gpiochip_generic_request;
chip->free = gpiochip_generic_free;
chip->get_direction = nmk_gpio_get_dir;
chip->direction_input = nmk_gpio_make_input;
chip->get = nmk_gpio_get_input;
chip->direction_output = nmk_gpio_make_output;