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drm/amd/display: remove unnecessary mpcc updates 

We were updating mpcc if there were tree changes which
is unnecessary since any mpcc being added or removed
will automatically update the tree.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dmytro Laktyushkin 2020-05-22 11:36:27 -04:00 committed by Alex Deucher
parent 37ffa7a1e7
commit ed8ec123a1
1 changed files with 6 additions and 7 deletions
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13
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
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@ -1265,14 +1265,13 @@ static void dcn20_detect_pipe_changes(struct pipe_ctx *old_pipe, struct pipe_ctx
if (old_pipe->stream_res.tg != new_pipe->stream_res.tg)
new_pipe->update_flags.bits.tg_changed = 1;
/* Detect mpcc blending changes, only dpp inst and bot matter here */
/*
* Detect mpcc blending changes, only dpp inst and opp matter here,
* mpccs getting removed/inserted update connected ones during their own
* programming
*/
if (old_pipe->plane_res.dpp != new_pipe->plane_res.dpp
|| old_pipe->stream_res.opp != new_pipe->stream_res.opp
|| (!old_pipe->bottom_pipe && new_pipe->bottom_pipe)
|| (old_pipe->bottom_pipe && !new_pipe->bottom_pipe)
|| (old_pipe->bottom_pipe && new_pipe->bottom_pipe
&& old_pipe->bottom_pipe->plane_res.mpcc_inst
!= new_pipe->bottom_pipe->plane_res.mpcc_inst))
|| old_pipe->stream_res.opp != new_pipe->stream_res.opp)
new_pipe->update_flags.bits.mpcc = 1;
/* Detect dppclk change */