diff options
| author | David Zhang <dingchen.zhang@amd.com> | 2022-04-29 17:38:14 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-06-06 14:40:57 -0400 |
| commit | aa303964bc349914de8e1d3ff7b517581839d01b (patch) | |
| tree | 64e991e2dabf888153378627aa7776407c1b1d90 /drivers/gpu/drm | |
| parent | 3a6dce778de7c120a37983d80b6ccc8c2c4ff6ec (diff) | |
| download | linux-aa303964bc349914de8e1d3ff7b517581839d01b.tar.gz | |
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: David Zhang <dingchen.zhang@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c index 79bc207415bc..27ceba9d6d65 100644 --- a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c +++ b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c @@ -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; |