drm/amd/display: Detect dynamic backlight support in eDP sink (65e870df) · Commits · 戴 / test

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

+7 −0

Original line number	Diff line number	Diff line
		@@ -3745,6 +3745,7 @@ void detect_edp_sink_caps(struct dc_link *link)
		uint32_t entry;
		uint32_t link_rate_in_khz;
		enum dc_link_rate link_rate = LINK_RATE_UNKNOWN;
		uint8_t backlight_adj_cap;

		retrieve_link_cap(link);
		link->dpcd_caps.edp_supported_link_rates_count = 0;
		@@ -3775,6 +3776,12 @@ void detect_edp_sink_caps(struct dc_link *link)
		}
		link->verified_link_cap = link->reported_link_cap;

		core_link_read_dpcd(link, DP_EDP_BACKLIGHT_ADJUSTMENT_CAP,
		&backlight_adj_cap, sizeof(backlight_adj_cap));

		link->dpcd_caps.dynamic_backlight_capable_edp =
		(backlight_adj_cap & DP_EDP_DYNAMIC_BACKLIGHT_CAP) ? true:false;

		dc_link_set_default_brightness_aux(link);
		}

+1 −0

Original line number	Diff line number	Diff line
		@@ -1091,6 +1091,7 @@ struct dpcd_caps {
		bool panel_mode_edp;
		bool dpcd_display_control_capable;
		bool ext_receiver_cap_field_present;
		bool dynamic_backlight_capable_edp;
		union dpcd_fec_capability fec_cap;
		struct dpcd_dsc_capabilities dsc_caps;
		struct dc_lttpr_caps lttpr_caps;