drm/amdgpu: update drm_display_info correctly when the edid is read

drm_display_info is updated by drm_get_edid() or
drm_connector_update_edid_property(). In the amdgpu driver it is almost
always updated when the edid is read in amdgpu_connector_get_edid(),
but not always.  Change amdgpu_connector_get_edid() and
amdgpu_connector_free_edid() to keep drm_display_info updated.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Claudio Suarez <cssk@net-c.es>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index df1f9b8..e5fc5a1 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -315,8 +315,10 @@ static void amdgpu_connector_get_edid(struct drm_connector *connector)
        if (!amdgpu_connector->edid) {
                /* some laptops provide a hardcoded edid in rom for LCDs */
                if (((connector->connector_type == DRM_MODE_CONNECTOR_LVDS) ||
-                    (connector->connector_type == DRM_MODE_CONNECTOR_eDP)))
+                    (connector->connector_type == DRM_MODE_CONNECTOR_eDP))) {
                        amdgpu_connector->edid = amdgpu_connector_get_hardcoded_edid(adev);
+                       drm_connector_update_edid_property(connector, amdgpu_connector->edid);
+               }
        }
 }
 
@@ -326,6 +328,7 @@ static void amdgpu_connector_free_edid(struct drm_connector *connector)
 
        kfree(amdgpu_connector->edid);
        amdgpu_connector->edid = NULL;
+       drm_connector_update_edid_property(connector, NULL);
 }
 
 static int amdgpu_connector_ddc_get_modes(struct drm_connector *connector)

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 0585ae4..151f355 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2950,13 +2950,12 @@ void amdgpu_dm_update_connector_after_detect(
                        aconnector->edid =
                                (struct edid *)sink->dc_edid.raw_edid;
 
-                       drm_connector_update_edid_property(connector,
-                                                          aconnector->edid);
                        if (aconnector->dc_link->aux_mode)
                                drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux,
                                                    aconnector->edid);
                }
 
+               drm_connector_update_edid_property(connector, aconnector->edid);
                amdgpu_dm_update_freesync_caps(connector, aconnector->edid);
                update_connector_ext_caps(aconnector);
        } else {