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Commit fe61052a authored by Christian Ruppert's avatar Christian Ruppert Committed by Linus Walleij
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pinctrl: add documentation for pinctrl_get_group_pins() 



This patch adds a short description of how to use the newly added
pinctrl_get_group_pins function to the pinctrl documentation.

Signed-off-by: default avatarChristian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 5a927501

Documentation/pinctrl.txt

+6 −1
Original line number Diff line number Diff line
@@ -358,7 +358,12 @@ static struct pinctrl_gpio_range gpio_range = { 
	.gc = &chip;

};



In this case the pin_base property will be ignored.

In this case the pin_base property will be ignored. If the name of a pin

group is known, the pins and npins elements of the above structure can be

initialised using the function pinctrl_get_group_pins(), e.g. for pin

group "foo":



pinctrl_get_group_pins(pctl, "foo", &gpio_range.pins, &gpio_range.npins);



When GPIO-specific functions in the pin control subsystem are called, these

ranges will be used to look up the appropriate pin controller by inspecting