提交 3484f1be 编写于 作者: L Linus Walleij

gpio: pl061: implement .get_direction()

Implement this callback so that the driver reports correctly
the direction setting of each line.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
上级 682366d5
......@@ -61,6 +61,13 @@ struct pl061_gpio {
#endif
};
static int pl061_get_direction(struct gpio_chip *gc, unsigned offset)
{
struct pl061_gpio *chip = gpiochip_get_data(gc);
return !(readb(chip->base + GPIODIR) & BIT(offset));
}
static int pl061_direction_input(struct gpio_chip *gc, unsigned offset)
{
struct pl061_gpio *chip = gpiochip_get_data(gc);
......@@ -315,6 +322,7 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
chip->gc.free = gpiochip_generic_free;
}
chip->gc.get_direction = pl061_get_direction;
chip->gc.direction_input = pl061_direction_input;
chip->gc.direction_output = pl061_direction_output;
chip->gc.get = pl061_get_value;
......
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