gpio: palmas: Fix misreported GPIO out value
It seems that the value read back from the PALMAS_GPIO_DATA_IN register isn't valid if the GPIO direction is out. When that's the case, we can read back the PALMAS_GPIO_DATA_OUT register to get the proper output value. Signed-off-by: NAndrew Chew <achew@nvidia.com> Acked-by: NLaxman Dewangan <ldewangan@nvidia.com> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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