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gpio: sch311x: Implement .get_direction() 

It's pretty simple to implement the .get_direction() for this
chip, so let's just do it.

Cc: Bruno Randolf <br1@einfach.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2018-06-27 10:47:28 +02:00
parent 30467c19e4
commit f9e03b0ef1
1 changed files with 13 additions and 0 deletions
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13
drivers/gpio/gpio-sch311x.c
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@ -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;