drm/dp: Add wait_hpd_asserted() callback to struct drm_dp_aux

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Sometimes it's useful for users of the DP AUX bus (like panels) to be
able to poll HPD. Let's add a callback that allows DP AUX busses
drivers to provide this.

Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220614145327.v4.1.Icf57bb12233a47727013c6ab69eebf803e22ebc1@changeid

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Douglas Anderson 2022-06-14 14:54:15 -07:00

parent 15b9ca1641

commit 841d742f09

1 changed files with 30 additions and 0 deletions

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include/drm/display/drm_dp_helper.h

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