diff options
Diffstat (limited to 'drivers/gpio/gpio-sch311x.c')
| -rw-r--r-- | drivers/gpio/gpio-sch311x.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-sch311x.c b/drivers/gpio/gpio-sch311x.c index 8bc2bf45e5da..ed64f7fa23b1 100644 --- a/drivers/gpio/gpio-sch311x.c +++ b/drivers/gpio/gpio-sch311x.c @@ -221,6 +221,18 @@ static int sch311x_gpio_direction_out(struct gpio_chip *chip, unsigned offset, return 0; } +static int sch311x_gpio_get_direction(struct gpio_chip *chip, unsigned offset) +{ + struct sch311x_gpio_block *block = gpiochip_get_data(chip); + unsigned char data; + + spin_lock(&block->lock); + data = inb(block->runtime_reg + block->config_regs[offset]); + spin_unlock(&block->lock); + + return !!(data & SCH311X_GPIO_CONF_IN); +} + static int sch311x_gpio_probe(struct platform_device *pdev) { struct sch311x_pdev_data *pdata = dev_get_platdata(&pdev->dev); @@ -253,6 +265,7 @@ static int sch311x_gpio_probe(struct platform_device *pdev) block->chip.free = sch311x_gpio_free; block->chip.direction_input = sch311x_gpio_direction_in; block->chip.direction_output = sch311x_gpio_direction_out; + block->chip.get_direction = sch311x_gpio_get_direction; block->chip.get = sch311x_gpio_get; block->chip.set = sch311x_gpio_set; block->chip.ngpio = 8; |