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GPIO: i.MX: Implement get_direction() 

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Alexander Shiyan 2014-04-07 18:17:39 +04:00 committed by Sascha Hauer
parent 6ca980c096
commit e9ab71561b
1 changed files with 10 additions and 0 deletions
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10
drivers/gpio/gpio-imx.c
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@ -113,11 +113,21 @@ static int imx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
return val & (1 << gpio) ? 1 : 0;
}
static int imx_get_direction(struct gpio_chip *chip, unsigned offset)
{
struct imx_gpio_chip *imxgpio = container_of(chip, struct imx_gpio_chip, chip);
void __iomem *base = imxgpio->base;
u32 val = readl(base + imxgpio->regs->gdir);
return (val & (1 << offset)) ? GPIOF_DIR_OUT : GPIOF_DIR_IN;
}
static struct gpio_ops imx_gpio_ops = {
.direction_input = imx_gpio_direction_input,
.direction_output = imx_gpio_direction_output,
.get = imx_gpio_get_value,
.set = imx_gpio_set_value,
.get_direction = imx_get_direction,
};
static int imx_gpio_probe(struct device_d *dev)