Commit e592e85f authored by Martin Leung's avatar Martin Leung Committed by Alex Deucher

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: default avatarMartin Leung <martin.leung@amd.com>
Reviewed-by: default avatarAric Cyr <Aric.Cyr@amd.com>
Acked-by: default avatarRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a0e40018
......@@ -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,
......
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