Commit 7958b4bb authored by Linus Walleij's avatar Linus Walleij
Browse files

pinctrl: pinmux: Add missing .function_is_gpio kerneldoc 



This callback was undocumented, add the docs.

Reviewed-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent a419bc0f

include/linux/pinctrl/pinmux.h

+10 −0
Original line number Diff line number Diff line
@@ -35,6 +35,16 @@ struct pinctrl_gpio_range; 
 *	name can be used with the generic @pinctrl_ops to retrieve the

 *	actual pins affected. The applicable groups will be returned in

 *	@groups and the number of groups in @num_groups

 * @function_is_gpio: determine if the indicated function selector passed

 *	corresponds to the GPIO function which is used by the accelerated GPIO

 *	functions @gpio_request_enable, @gpio_disable_free and

 *	@gpio_set_direction. When the pin control core can properly determine

 *	if a function is a GPIO function, it is easier to use the @strict mode

 *	on the pin controller. Since a single function is passed, this is

 *	only useful on pin controllers that use a specific function for GPIO,

 *	and that usually presupposes that a one-group-per-pin approach is

 *	used, so that a single function can be set on a single pin to turn

 *	it to GPIO mode.

 * @set_mux: enable a certain muxing function with a certain pin group. The

 *	driver does not need to figure out whether enabling this function

 *	conflicts some other use of the pins in that group, such collisions