From e592e85f3378246dd66b861fa60ef803d8cece6b Mon Sep 17 00:00:00 2001 From: Martin Leung Date: Thu, 27 Feb 2020 14:41:39 -0500 Subject: [PATCH] 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 Reviewed-by: Aric Cyr Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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, -- 2.39.5