diff options
Diffstat (limited to 'drivers/gpio/gpio-sa1100.c')
| -rw-r--r-- | drivers/gpio/gpio-sa1100.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-sa1100.c b/drivers/gpio/gpio-sa1100.c index bad0169524c9..249f433aa62d 100644 --- a/drivers/gpio/gpio-sa1100.c +++ b/drivers/gpio/gpio-sa1100.c @@ -52,6 +52,13 @@ static void sa1100_gpio_set(struct gpio_chip *chip, unsigned offset, int value) writel_relaxed(BIT(offset), sa1100_gpio_chip(chip)->membase + reg); } +static int sa1100_get_direction(struct gpio_chip *chip, unsigned offset) +{ + void __iomem *gpdr = sa1100_gpio_chip(chip)->membase + R_GPDR; + + return !(readl_relaxed(gpdr) & BIT(offset)); +} + static int sa1100_direction_input(struct gpio_chip *chip, unsigned offset) { void __iomem *gpdr = sa1100_gpio_chip(chip)->membase + R_GPDR; @@ -85,6 +92,7 @@ static int sa1100_to_irq(struct gpio_chip *chip, unsigned offset) static struct sa1100_gpio_chip sa1100_gpio_chip = { .chip = { .label = "gpio", + .get_direction = sa1100_get_direction, .direction_input = sa1100_direction_input, .direction_output = sa1100_direction_output, .set = sa1100_gpio_set, |