drm/amd/display: Non-HDMI DP active dongle should not support YUV pixel format (f110892e) · Commits · 戴 / test

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

+16 −3

Original line number	Diff line number	Diff line
		@@ -1848,9 +1848,22 @@ static void disable_link(struct dc_link *link, enum signal_type signal)

		static bool dp_active_dongle_validate_timing(
		const struct dc_crtc_timing *timing,
		const struct dc_dongle_caps *dongle_caps)
		const struct dpcd_caps *dpcd_caps)
		{
		unsigned int required_pix_clk = timing->pix_clk_khz;
		const struct dc_dongle_caps *dongle_caps = &dpcd_caps->dongle_caps;

		switch (dpcd_caps->dongle_type) {
		case DISPLAY_DONGLE_DP_VGA_CONVERTER:
		case DISPLAY_DONGLE_DP_DVI_CONVERTER:
		case DISPLAY_DONGLE_DP_DVI_DONGLE:
		if (timing->pixel_encoding == PIXEL_ENCODING_RGB)
		return true;
		else
		return false;
		default:
		break;
		}

		if (dongle_caps->dongle_type != DISPLAY_DONGLE_DP_HDMI_CONVERTER \|\|
		dongle_caps->extendedCapValid == false)
		@@ -1916,7 +1929,7 @@ enum dc_status dc_link_validate_mode_timing(
		const struct dc_crtc_timing *timing)
		{
		uint32_t max_pix_clk = stream->sink->dongle_max_pix_clk;
		struct dc_dongle_caps *dongle_caps = &link->dpcd_caps.dongle_caps;
		struct dpcd_caps *dpcd_caps = &link->dpcd_caps;

		/* A hack to avoid failing any modes for EDID override feature on
		* topology change such as lower quality cable for DP or different dongle
		@@ -1929,7 +1942,7 @@ enum dc_status dc_link_validate_mode_timing(
		return DC_EXCEED_DONGLE_CAP;

		/* Active Dongle*/
		if (!dp_active_dongle_validate_timing(timing, dongle_caps))
		if (!dp_active_dongle_validate_timing(timing, dpcd_caps))
		return DC_EXCEED_DONGLE_CAP;

		switch (stream->signal) {