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drm/msm/mdp5: Disable pingpong autorefresh at tearcheck init 

If pp autorefresh is up (from bootloader splash), we will surely get
vblank and pp timeouts.  Ensure it is turned off.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Link: https://lore.kernel.org/r/20210406214726.131534-4-marijn.suijten@somainline.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
AngeloGioacchino Del Regno 2021-04-06 23:47:26 +02:00 committed by Rob Clark
parent 377569f82e
commit 33b2b91e34
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/msm/disp/mdp5/mdp5_cmd_encoder.c
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@ -67,6 +67,7 @@ static int pingpong_tearcheck_setup(struct drm_encoder *encoder,
mdp5_write(mdp5_kms, REG_MDP5_PP_SYNC_THRESH(pp_id),
MDP5_PP_SYNC_THRESH_START(4) |
MDP5_PP_SYNC_THRESH_CONTINUE(4));
mdp5_write(mdp5_kms, REG_MDP5_PP_AUTOREFRESH_CONFIG(pp_id), 0x0);
return 0;
}