Commit e592e85f authored Feb 27, 2020 by Martin Leung Committed by Alex Deucher Mar 09, 2020

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 <martin.leung@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent a0e40018

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

+1 −1

Original line number	Diff line number	Diff line
		@@ -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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