diff options
| author |   Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> | 2023-04-15 21:03:16 +0530 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2023-04-18 16:28:51 -0400 |
| commit | 9b035d089086deb75d6664b26d36e35853e58ce9 (patch) | |
| tree | 35c977b61f0585de4cc478e7ab9d4d94e5498249 | |
| parent | drm/amd/display: Unconditionally print when DP sink power state fails (diff) | |
| download | wireguard-linux-9b035d089086deb75d6664b26d36e35853e58ce9.tar.xz wireguard-linux-9b035d089086deb75d6664b26d36e35853e58ce9.zip | |
drm/amd/display: Check & log if receiver supports MST, DSC & FEC.
After reading from receiver via DPCD, check & log if it supports MST,
DSC & FEC
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Fangzhi Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c index 6d2d10da2b77..2914fca7dab3 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c @@ -1552,6 +1552,9 @@ static bool retrieve_link_cap(struct dc_link *link) int i; struct dp_sink_hw_fw_revision dp_hw_fw_revision; const uint32_t post_oui_delay = 30; // 30ms + bool is_fec_supported = false; + bool is_dsc_basic_supported = false; + bool is_dsc_passthrough_supported = false; memset(dpcd_data, '\0', sizeof(dpcd_data)); memset(&down_strm_port_count, @@ -1694,6 +1697,7 @@ static bool retrieve_link_cap(struct dc_link *link) /* TODO - decouple raw mst capability from policy decision */ link->dpcd_caps.is_mst_capable = read_is_mst_supported(link); + DC_LOG_DC("%s: MST_Support: %s\n", __func__, str_yes_no(link->dpcd_caps.is_mst_capable)); get_active_converter_info(ds_port.byte, link); @@ -1801,6 +1805,18 @@ static bool retrieve_link_cap(struct dc_link *link) DP_DSC_SUPPORT, link->dpcd_caps.dsc_caps.dsc_basic_caps.raw, sizeof(link->dpcd_caps.dsc_caps.dsc_basic_caps.raw)); + if (status == DC_OK) { + is_fec_supported = link->dpcd_caps.fec_cap.bits.FEC_CAPABLE; + is_dsc_basic_supported = link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_SUPPORT; + is_dsc_passthrough_supported = link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_PASSTHROUGH_SUPPORT; + DC_LOG_DC("%s: FEC_Sink_Support: %s\n", __func__, + str_yes_no(is_fec_supported)); + DC_LOG_DC("%s: DSC_Basic_Sink_Support: %s\n", __func__, + str_yes_no(is_dsc_basic_supported)); + if (link->dpcd_caps.is_mst_capable) + DC_LOG_DC("%s: DSC_Passthrough_Sink_Support: %s\n", __func__, + str_yes_no(is_dsc_passthrough_supported)); + } if (link->dpcd_caps.dongle_type != DISPLAY_DONGLE_NONE) { status = core_link_read_dpcd( link, |