drm/amdgpu/display: give aux i2c buses more meaningful names

Mirror what we do for i2c display buses.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -4664,6 +4664,7 @@ static void amdgpu_dm_connector_destroy(struct drm_connector *connector)
 		i2c_del_adapter(&aconnector->i2c->base);
 		kfree(aconnector->i2c);
 	}
+	kfree(aconnector->dm_dp_aux.aux.name);
 
 	kfree(connector);
 }
@@ -6101,7 +6102,7 @@ static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
 
 	if (connector_type == DRM_MODE_CONNECTOR_DisplayPort
 		|| connector_type == DRM_MODE_CONNECTOR_eDP)
-		amdgpu_dm_initialize_dp_connector(dm, aconnector);
+		amdgpu_dm_initialize_dp_connector(dm, aconnector, link->link_index);
 
 out_free:
 	if (res) {

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

@@ -472,9 +472,12 @@ static const struct drm_dp_mst_topology_cbs dm_mst_cbs = {
 };
 
 void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
-				       struct amdgpu_dm_connector *aconnector)
+				       struct amdgpu_dm_connector *aconnector,
+				       int link_index)
 {
-	aconnector->dm_dp_aux.aux.name = "dmdc";
+	aconnector->dm_dp_aux.aux.name =
+		kasprintf(GFP_KERNEL, "AMDGPU DM aux hw bus %d",
+			  link_index);
 	aconnector->dm_dp_aux.aux.transfer = dm_dp_aux_transfer;
 	aconnector->dm_dp_aux.ddc_service = aconnector->dc_link->ddc;
 

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h

@@ -32,7 +32,8 @@ struct amdgpu_dm_connector;
 int dm_mst_get_pbn_divider(struct dc_link *link);
 
 void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
-				       struct amdgpu_dm_connector *aconnector);
+				       struct amdgpu_dm_connector *aconnector,
+				       int link_index);
 
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,