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authorMartin Leung <[email protected]>2020-02-27 14:41:39 -0500
committerAlex Deucher <[email protected]>2020-03-09 13:50:15 -0400
commite592e85f3378246dd66b861fa60ef803d8cece6b (patch)
tree0a1a166d040704458fa37afa4e89cf6a92dfcbe7
parenta0e40018dcc3f59a10ca21d58f8ea8ceb1b035ac (diff)
drm/amd/display: writing stereo polarity register if swapped
[why] on some displays that prefer swapped polarity we were seeing L/R images swapped because OTG_STEREO_SYNC_OUTPUT_POLARITY would always be mapped to 0 [how] fix initial dal3 implementation to properly update the polarity field according to the crtc_stereo_flags (same as OTG_STEREO_EYE_FLAG_POLARITY) Signed-off-by: Martin Leung <[email protected]> Reviewed-by: Aric Cyr <[email protected]> Acked-by: Rodrigo Siqueira <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
-rw-r--r--drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c2
1 files changed, 1 insertions, 1 deletions
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 94ac34106776..63acb8ff7462 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
@@ -1193,7 +1193,7 @@ static void optc1_enable_stereo(struct timing_generator *optc,
REG_UPDATE_3(OTG_STEREO_CONTROL,
OTG_STEREO_EN, stereo_en,
OTG_STEREO_SYNC_OUTPUT_LINE_NUM, 0,
- OTG_STEREO_SYNC_OUTPUT_POLARITY, 0);
+ OTG_STEREO_SYNC_OUTPUT_POLARITY, flags->RIGHT_EYE_POLARITY == 0 ? 0 : 1);
if (flags->PROGRAM_POLARITY)
REG_UPDATE(OTG_STEREO_CONTROL,