diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index e6b2eec9fb59..6f0a1fdccf7f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -160,6 +160,8 @@ static bool validate_dsc_caps_on_connector(struct amdgpu_dm_connector *aconnecto struct dc_sink *dc_sink = aconnector->dc_sink; struct drm_dp_mst_port *port = aconnector->port; u8 dsc_caps[16] = { 0 }; + u8 dsc_branch_dec_caps_raw[3] = { 0 }; // DSC branch decoder caps 0xA0 ~ 0xA2 + u8 *dsc_branch_dec_caps = NULL; aconnector->dsc_aux = drm_dp_mst_dsc_aux_for_port(port); #if defined(CONFIG_HP_HOOK_WORKAROUND) @@ -182,9 +184,13 @@ static bool validate_dsc_caps_on_connector(struct amdgpu_dm_connector *aconnecto if (drm_dp_dpcd_read(aconnector->dsc_aux, DP_DSC_SUPPORT, dsc_caps, 16) < 0) return false; + if (drm_dp_dpcd_read(aconnector->dsc_aux, + DP_DSC_BRANCH_OVERALL_THROUGHPUT_0, dsc_branch_dec_caps_raw, 3) == 3) + dsc_branch_dec_caps = dsc_branch_dec_caps_raw; + if (!dc_dsc_parse_dsc_dpcd(aconnector->dc_link->ctx->dc, - dsc_caps, NULL, - &dc_sink->dsc_caps.dsc_dec_caps)) + dsc_caps, dsc_branch_dec_caps, + &dc_sink->dsc_caps.dsc_dec_caps)) return false; return true; |