drm/amd/display: Update HDMI hang w/a to apply to all TMDS signals (95e0b96d) · Commits · 戴 / test

[WHY] 48mhz turn off feature does not work on HDMI and DVI, but the feauture was only blocked on HDMI, this change will apply the same wa on DVI [HOW] Apply workaround for all TMDS signal types (HDMI, DVI single/dual link) Signed-off-by:

Michael Strauss <michael.strauss@amd.com> Reviewed-by:

Eric Yang <eric.yang2@amd.com> Acked-by:

Harry Wentland <harry.wentland@amd.com> Acked-by:

Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by:

Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c

+6 −4

Original line number	Diff line number	Diff line
		@@ -59,14 +59,16 @@ int rn_get_active_display_cnt_wa(
		struct dc_state *context)
		{
		int i, display_count;
		bool hdmi_present = false;
		bool tmds_present = false;

		display_count = 0;
		for (i = 0; i < context->stream_count; i++) {
		const struct dc_stream_state *stream = context->streams[i];

		if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
		hdmi_present = true;
		if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A \|\|
		stream->signal == SIGNAL_TYPE_DVI_SINGLE_LINK \|\|
		stream->signal == SIGNAL_TYPE_DVI_DUAL_LINK)
		tmds_present = true;
		}

		for (i = 0; i < dc->link_count; i++) {
		@@ -85,7 +87,7 @@ int rn_get_active_display_cnt_wa(
		}

		/* WA for hang on HDMI after display off back back on*/
		if (display_count == 0 && hdmi_present)
		if (display_count == 0 && tmds_present)
		display_count = 1;

		return display_count;

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