From e1ccd0c3f15a70c1c07a56cc91ea9d27de800fdc Mon Sep 17 00:00:00 2001
From: "Jerry (Fangzhi) Zuo" <Jerry.Zuo@amd.com>
Date: Sun, 5 Apr 2020 16:41:09 -0400
Subject: drm/amd/display: Avoid create MST prop after registration
Git-commit: 8c61b31e3c3f7dd843ebbf1cc02ca352b66f123f
Patch-mainline: v5.7-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
[Why]
Prop are created at boot stage, and not allowed to create new prop
after device registration.
[How]
Reuse the connector property from SST if exist.
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 8 +++++---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 8 ++++++++
2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index bab587ab6e8d..ffffbf4ec650 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5929,7 +5929,8 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
adev->mode_info.underscan_vborder_property,
0);
- drm_connector_attach_max_bpc_property(&aconnector->base, 8, 16);
+ if (!aconnector->mst_port)
+ drm_connector_attach_max_bpc_property(&aconnector->base, 8, 16);
/* This defaults to the max in the range, but we want 8bpc for non-edp. */
aconnector->base.state->max_bpc = (connector_type == DRM_MODE_CONNECTOR_eDP) ? 16 : 8;
@@ -5948,8 +5949,9 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
&aconnector->base.base,
dm->ddev->mode_config.hdr_output_metadata_property, 0);
- drm_connector_attach_vrr_capable_property(
- &aconnector->base);
+ if (!aconnector->mst_port)
+ drm_connector_attach_vrr_capable_property(&aconnector->base);
+
#ifdef CONFIG_DRM_AMD_DC_HDCP
if (adev->dm.hdcp_workqueue)
drm_connector_attach_content_protection_property(&aconnector->base, true);
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 e8208df420d9..fabbe78d5aef 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
@@ -410,6 +410,14 @@ dm_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
drm_connector_attach_encoder(&aconnector->base,
&aconnector->mst_encoder->base);
+ connector->max_bpc_property = master->base.max_bpc_property;
+ if (connector->max_bpc_property)
+ drm_connector_attach_max_bpc_property(connector, 8, 16);
+
+ connector->vrr_capable_property = master->base.vrr_capable_property;
+ if (connector->vrr_capable_property)
+ drm_connector_attach_vrr_capable_property(connector);
+
drm_object_attach_property(
&connector->base,
dev->mode_config.path_property,
--
2.28.0