drm/tegra: Fix gpiod_get_from_of_node() regression
That function now returns ERR_PTR instead of NULL if "hpd-gpio" is not present in device-tree. The offending patch missed to adapt the Tegra's DRM driver for the API change. Fixes: 025bf377 ("gpio: Fix return value mismatch of function gpiod_get_from_of_node()") Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
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