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drm/amd/display: setting the DIG_MODE to the correct value.

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[Why]
This patch is for fixing Navi14 HDMI display pink screen issue.

[How]
Call stream->link->link_enc->funcs->setup twice. This is setting
the DIG_MODE to the correct value after having been overridden by
the call to transmitter control.

Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Zhan liu 2019-10-17 14:55:56 -04:00 committed by Alex Deucher
parent 0e04ad7d18
commit 967a3b85ba
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/amd/display/dc/core/dc_link.c
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@ -2842,6 +2842,15 @@ void core_link_enable_stream(
CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
COLOR_DEPTH_UNDEFINED);
/* This second call is needed to reconfigure the DIG
* as a workaround for the incorrect value being applied
* from transmitter control.
*/
if (!dc_is_virtual_signal(pipe_ctx->stream->signal))
stream->link->link_enc->funcs->setup(
stream->link->link_enc,
pipe_ctx->stream->signal);
#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
if (pipe_ctx->stream->timing.flags.DSC) {
if (dc_is_dp_signal(pipe_ctx->stream->signal) ||