gpio: twl6040: Implement .get_direction() (ba74bd5d) · Commits · 戴 / test

The gpiolib cannot deduce the fact that every line is output by itself, implement a .get_direction() callback so we can inspect this. Acked-by:

drivers/gpio/gpio-twl6040.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,12 @@ static int twl6040gpo_get(struct gpio_chip *chip, unsigned offset)
		return !!(ret & BIT(offset));
		}

		static int twl6040gpo_get_direction(struct gpio_chip *chip, unsigned offset)
		{
		/* This means "out" */
		return 0;
		}

		static int twl6040gpo_direction_out(struct gpio_chip *chip, unsigned offset,
		int value)
		{
		@@ -62,6 +68,7 @@ static struct gpio_chip twl6040gpo_chip = {
		.owner = THIS_MODULE,
		.get = twl6040gpo_get,
		.direction_output = twl6040gpo_direction_out,
		.get_direction = twl6040gpo_get_direction,
		.set = twl6040gpo_set,
		.can_sleep = true,
		};