drm/amd/display: Add temporary delay on disconnect patch (243c46c5) · Commits · 戴 / test

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

+10 −4

Original line number	Diff line number	Diff line
		@@ -50,6 +50,7 @@
		dm_logger_write(dc_ctx->logger, LOG_HW_HOTPLUG, \
		__VA_ARGS__)

		#define DEFAULT_DELAY_DISCONNECT 100
		/*******************************************************************************
		* Private structures
		******************************************************************************/
		@@ -117,7 +118,7 @@ struct gpio get_hpd_gpio(struct dc_bios dcb,
		* true on success, false otherwise
		*/
		static bool program_hpd_filter(
		const struct dc_link *link)
		const struct dc_link *link, int default_disconnect_delay)
		{
		bool result = false;

		@@ -133,7 +134,7 @@ static bool program_hpd_filter(
		case SIGNAL_TYPE_HDMI_TYPE_A:
		/* Program hpd filter */
		delay_on_connect_in_ms = 500;
		delay_on_disconnect_in_ms = 100;
		delay_on_disconnect_in_ms = default_disconnect_delay;
		break;
		case SIGNAL_TYPE_DISPLAY_PORT:
		case SIGNAL_TYPE_DISPLAY_PORT_MST:
		@@ -695,6 +696,11 @@ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason)
		dp_hbr_verify_link_cap(link, &link->reported_link_cap);
		}

		/* Add delay for certain monitors */
		if (sink->edid_caps.panel_patch.disconnect_delay > 0 &&
		SIGNAL_TYPE_HDMI_TYPE_A)
		program_hpd_filter(link, sink->edid_caps.panel_patch.disconnect_delay);

		/* HDMI-DVI Dongle */
		if (sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A &&
		!sink->edid_caps.edid_hdmi)
		@@ -1081,7 +1087,7 @@ static bool construct(
		* If GPIO isn't programmed correctly HPD might not rise or drain
		* fast enough, leading to bounces.
		*/
		program_hpd_filter(link);
		program_hpd_filter(link, DEFAULT_DELAY_DISCONNECT);

		return true;
		device_tag_fail:
		@@ -2000,7 +2006,7 @@ const struct dc_link_status dc_link_get_status(const struct dc_link link)
		void core_link_resume(struct dc_link *link)
		{
		if (link->connector_signal != SIGNAL_TYPE_VIRTUAL)
		program_hpd_filter(link);
		program_hpd_filter(link, DEFAULT_DELAY_DISCONNECT);
		}

		static struct fixed31_32 get_pbn_per_slot(struct dc_stream_state *stream)

drivers/gpu/drm/amd/display/dc/dc_types.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -193,6 +193,10 @@ union display_content_support {
		} bits;
		};

		struct dc_panel_patch {
		unsigned int disconnect_delay;
		};

		struct dc_edid_caps {
		/* sink identification */
		uint16_t manufacturer_id;
		@@ -219,6 +223,8 @@ struct dc_edid_caps {

		bool edid_hdmi;
		bool hdr_supported;

		struct dc_panel_patch panel_patch;
		};

		struct view {

Admin message