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authorAric Cyr <aric.cyr@amd.com>2020-12-01 11:25:50 -0500
committerQingqing Zhuo <qingqing.zhuo@amd.com>2020-12-14 10:09:27 -0500
commit011e4a05c00ce9be9ee48bfdd2cc63a28b5ef9bf (patch)
treeeec5fd78a7b3707bac4269eb469717a8e4d1bc73 /drivers/gpu/drm/amd
parentdc57e5133e20a70fb9dcccb9d9669dd2088049f9 (diff)
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: Aric Cyr <aric.cyr@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c2
-rw-r--r--drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c2
-rw-r--r--drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c2
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c
index 82bc4e192bbf..915fbb8e8168 100644
--- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c
+++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c
@@ -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;
}
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
index a125d3f05c81..48ccdcc17ede 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
@@ -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;
}
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
index b1f228fc119a..3ba3991ee612 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
@@ -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;
}