drm/msm/dp: retry 3 times if set sink to D0 poweer state failed

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Bring sink out of D3 (power down) mode into D0 (normal operation) mode
by setting DP_SET_POWER_D0 bit to DP_SET_POWER dpcd register. This
patch will retry 3 times if written to DP_SET_POWER register failed.

Changes in v5:
-- split into two patches

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/502536/
Link: https://lore.kernel.org/r/1662999830-13916-4-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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Kuogee Hsieh 2022-09-12 09:23:50 -07:00 • committed by Dmitry Baryshkov

parent d54c518a49

commit af309c0c06

1 changed files with 8 additions and 5 deletions

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drivers/gpu/drm/msm/dp/dp_link.c

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