[PATCH] drm/msm/dp: fix runtime_pm handling in dp_wait_hpd_asserted

[Stephen Boyd]

Quoting Dmitry Baryshkov (2024-02-26 14:34:45)
> The function dp_wait_hpd_asserted() uses pm_runtime_get_sync() and
> doesn't care about the return value. Potentially this can lead to
> unclocked access if for some reason resuming of the DP controller fails.
>
> Change the function to use pm_runtime_resume_and_get() and return an
> error if resume fails.
>
> Fixes: e2969ee30252 ("drm/msm/dp: move of_dp_aux_populate_bus() to eDP probe()")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> ---

Reviewed-by: Stephen Boyd <swboyd at chromium.org>