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pinctrl: pinmux: Add missing .function_is_gpio kerneldoc

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This callback was undocumented, add the docs.

Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2025-10-22 15:23:42 +02:00
parent a419bc0f13
commit 7958b4bb80
1 changed files with 10 additions and 0 deletions
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10
include/linux/pinctrl/pinmux.h
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@ -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