drm/amd/display: setting the DIG_MODE to the correct value. (967a3b85) · Commits · 戴 / test

[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>

drivers/gpu/drm/amd/display/dc/core/dc_link.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -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) \|\|

Admin message