Instead of passing a global GPIO number, pass a descriptor looked
up from the device tree configuration node.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: NKrzysztof Kozlowski <krzk@kernel.org>
Tested-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NMark Brown <broonie@kernel.org>