The chip is also an 8 bit shift register which works out of the box as a GPO
expander with this patch
Signed-off-by: NNicolas Saenz Julienne <nicolassaenzj@gmail.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>