gpio: of: Support regulator nonstandard GPIO properties
authorLinus Walleij <linus.walleij@linaro.org>
Wed, 27 Dec 2017 15:37:44 +0000 (16:37 +0100)
committerLinus Walleij <linus.walleij@linaro.org>
Fri, 12 Jan 2018 09:04:57 +0000 (10:04 +0100)
commit6a537d48461deacc57c07ed86d9915e5aa4b3539
tree9378149bbe38af7e19c618afad0e2015ea0f90d1
parent76e28f5ffed82b1e81a86c4eb8d0420515765620
gpio: of: Support regulator nonstandard GPIO properties

Before it was clearly established that all GPIO properties in the
device tree shall be named "foo-gpios" (with the deprecated variant
"foo-gpio" for single lines) we unfortunately merged a few bindings
for regulators with random phandle names.

As we want to switch the GPIO regulator driver to using descriptors,
we need devm_gpiod_get() to return something reasonable when looking
up these in the device tree.

Put in a special #ifdef:ed kludge to do this special lookup only
for the regulator case and gets compiled out if we're not enabling
regulators. Supply a whitelist with properties we accept.

Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
drivers/gpio/gpiolib-of.c