Commit 570b302b authored by Aric Cyr's avatar Aric Cyr Committed by Alex Deucher
Browse files

drm/amd/display: HP Reverb G2 VR fails to light up 



[Why]
Many VR headsets require a HSYNC width of 4, but DCN
has default minimum of 8.

[How]
Change the arbitrary minimum HSYNC width to 4 to match
DCN20.

Signed-off-by: default avatarAric Cyr <aric.cyr@amd.com>
Reviewed-by: default avatarCharlene Liu <Charlene.Liu@amd.com>
Reviewed-by: default avatarJun Lei <Jun.Lei@amd.com>
Acked-by: default avatarQingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 41aa4d3d

drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c

+1 −1
Original line number Diff line number Diff line
@@ -1268,7 +1268,7 @@ void dce120_timing_generator_construct( 
	tg110->min_h_front_porch = 0;

	tg110->min_h_back_porch = 0;



	tg110->min_h_sync_width = 8;

	tg110->min_h_sync_width = 4;

	tg110->min_v_sync_width = 1;

	tg110->min_v_blank = 3;

}

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c

+1 −1
Original line number Diff line number Diff line
@@ -1540,7 +1540,7 @@ void dcn10_timing_generator_init(struct optc *optc1) 
	optc1->min_h_blank = 32;

	optc1->min_v_blank = 3;

	optc1->min_v_blank_interlace = 5;

	optc1->min_h_sync_width = 8;

	optc1->min_h_sync_width = 4;

	optc1->min_v_sync_width = 1;

}

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c

+1 −1
Original line number Diff line number Diff line
@@ -350,7 +350,7 @@ void dcn30_timing_generator_init(struct optc *optc1) 
	optc1->min_h_blank = 32;

	optc1->min_v_blank = 3;

	optc1->min_v_blank_interlace = 5;

	optc1->min_h_sync_width = 8;

	optc1->min_h_sync_width = 4;

	optc1->min_v_sync_width = 1;

}

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