pinctrl: st: Introduce a 'get pin function' call

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This call fetches the numerical function value a specified pin is
currently operating in.  Function zero is more often than not the
GPIO function.  Greater than zero values represent an alternative
function.  You'd need to either look those up in the Device Tree
sources or the Programmer's Manual.

Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Lee Jones 2015-03-18 17:21:15 +00:00 • committed by Linus Walleij

parent e4c02dced9

commit c2a4bf4708

1 changed files with 14 additions and 0 deletions

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drivers/pinctrl/pinctrl-st.c

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