On Fri, Feb 16, 2018 at 8:12 PM, Daniel Kurtz <djku...@chromium.org> wrote:

> On boot, gpiochip_add_data() initializes the FLAG_IS_OUT bit in
> desc->flags iff its gpio_chip does not have ->direction_input() handler,
> else it is initialized to 0, which implies the GPIO is an "input".
> Later, the sysfs "direction" handler will use gpiod_get_direction() to
> get the current direction, but if no ->get_direction() handler is
> installed, the result will just be the current (initial) value of flags,
> which will always be OUT irregardless of the initial register value.
> Add a get_direction() handler to pinctrl-amd to fix this and always
> provide the correct value for direction.
> Signed-off-by: Daniel Kurtz <djku...@chromium.org>

Hm, please don't use the sysfs... use the chardev!

Anyways, patch is fine and applied.

Linus Walleij

Reply via email to