Messages in this thread Patch in this message | | | From | Bo-Chen Chen <> | Subject | [PATCH v11 08/10] drm/mediatek: set monitor to DP_SET_POWER_D3 to avoid garbage | Date | Fri, 10 Jun 2022 18:55:20 +0800 |
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Set the monitor power state to DP_SET_POWER_D3 to avoid garbage.
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com> Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> --- drivers/gpu/drm/mediatek/mtk_dp.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c index 2413551bfe9f..a5ed94ca00c6 100644 --- a/drivers/gpu/drm/mediatek/mtk_dp.c +++ b/drivers/gpu/drm/mediatek/mtk_dp.c @@ -2043,6 +2043,11 @@ static void mtk_dp_bridge_atomic_disable(struct drm_bridge *bridge, { struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge); + if (mtk_dp_plug_state(mtk_dp)) { + drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D3); + usleep_range(2000, 3000); + } + mtk_dp_video_mute(mtk_dp, true); mtk_dp->train_state = MTK_DP_TRAIN_STATE_TRAINING; -- 2.18.0
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