diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-oxnas.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-oxnas.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-oxnas.c b/drivers/pinctrl/pinctrl-oxnas.c index 5fd113c06864..2c6abef91d20 100644 --- a/drivers/pinctrl/pinctrl-oxnas.c +++ b/drivers/pinctrl/pinctrl-oxnas.c @@ -49,6 +49,7 @@ /* GPIO Registers */ #define INPUT_VALUE 0x00 +#define OUTPUT_EN 0x04 #define IRQ_PENDING 0x0c #define OUTPUT_SET 0x14 #define OUTPUT_CLEAR 0x18 @@ -431,6 +432,15 @@ static int oxnas_gpio_request_enable(struct pinctrl_dev *pctldev, return 0; } +static int oxnas_gpio_get_direction(struct gpio_chip *chip, + unsigned int offset) +{ + struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); + u32 mask = BIT(offset); + + return !(readl_relaxed(bank->reg_base + OUTPUT_EN) & mask); +} + static int oxnas_gpio_direction_input(struct gpio_chip *chip, unsigned int offset) { @@ -664,6 +674,7 @@ static void oxnas_gpio_irq_handler(struct irq_desc *desc) .label = "GPIO" #_bank, \ .request = gpiochip_generic_request, \ .free = gpiochip_generic_free, \ + .get_direction = oxnas_gpio_get_direction, \ .direction_input = oxnas_gpio_direction_input, \ .direction_output = oxnas_gpio_direction_output, \ .get = oxnas_gpio_get, \ |