Commit 06050a0f authored by Bing Guo's avatar Bing Guo Committed by Alex Deucher
Browse files

drm/amd/display: Fix Dynamic bpp issue with 8K30 with Navi 1X 



Why:
In DCN2x, HW doesn't automatically divide MASTER_UPDATE_LOCK_DB_X
by the number of pipes ODM Combined.

How:
Set MASTER_UPDATE_LOCK_DB_X to the value that is adjusted by the
number of pipes ODM Combined.

Reviewed-by: default avatarMartin Leung <martin.leung@amd.com>
Acked-by: default avatarAurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: default avatarBing Guo <bing.guo@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ffb9ee8e

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c

+1 −1
Original line number Diff line number Diff line
@@ -464,7 +464,7 @@ void optc2_lock_doublebuffer_enable(struct timing_generator *optc) 


	REG_UPDATE_2(OTG_GLOBAL_CONTROL1,

			MASTER_UPDATE_LOCK_DB_X,

			h_blank_start - 200 - 1,

			(h_blank_start - 200 - 1) / optc1->opp_count,

			MASTER_UPDATE_LOCK_DB_Y,

			v_blank_start - 1);

}