Commit aa303964 authored by David Zhang's avatar David Zhang Committed by Alex Deucher
Browse files

drm/amd/display: revise Start/End SDP data 



[why & how]
We need to implement the VSC packet rev4 that is required by PSRSU.

Follow the eDP 1.5 spec pg. 257

changes in v2:
-------------------
- set vsc packet rev2 for PSR1

Cc: Chandan Vurdigerenataraj <chandan.vurdigerenataraj@amd.com>

Signed-off-by: default avatarDavid Zhang <dingchen.zhang@amd.com>
Acked-by: default avatarLeo Li <sunpeng.li@amd.com>
Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3a6dce77

drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c

+27 −2
Original line number Diff line number Diff line
@@ -145,8 +145,10 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream, 
		stereo3dSupport = true;

	}



	/*VSC packet set to 2 when DP revision >= 1.2*/

	if (stream->link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED)

	/* VSC packet set to 4 for PSR-SU, or 2 for PSR1 */

	if (stream->link->psr_settings.psr_version == DC_PSR_VERSION_SU_1)

		vsc_packet_revision = vsc_packet_rev4;

	else if (stream->link->psr_settings.psr_version == DC_PSR_VERSION_1)

		vsc_packet_revision = vsc_packet_rev2;



	/* Update to revision 5 for extended colorimetry support */
@@ -159,6 +161,29 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream, 
	if (vsc_packet_revision == vsc_packet_undefined)

		return;



	if (vsc_packet_revision == vsc_packet_rev4) {

		/* Secondary-data Packet ID = 0*/

		info_packet->hb0 = 0x00;

		/* 07h - Packet Type Value indicating Video

		 * Stream Configuration packet

		 */

		info_packet->hb1 = 0x07;

		/* 04h = VSC SDP supporting 3D stereo + PSR/PSR2 + Y-coordinate

		 * (applies to eDP v1.4 or higher).

		 */

		info_packet->hb2 = 0x04;

		/* 0Eh = VSC SDP supporting 3D stereo + PSR2

		 * (HB2 = 04h), with Y-coordinate of first scan

		 * line of the SU region

		 */

		info_packet->hb3 = 0x0E;



		for (i = 0; i < 28; i++)

			info_packet->sb[i] = 0;



		info_packet->valid = true;

	}



	if (vsc_packet_revision == vsc_packet_rev2) {

		/* Secondary-data Packet ID = 0*/

		info_packet->hb0 = 0x00;