drm/vmwgfx: Add and connect connector helper function

These helpers won't be called until we flip on the atomic support
flag or set drm_crtc_funcs->set_config to using the atomic
helper.

v2
Use drm_atomic_helper_best_encoder() rather than a vmwgfx-specific one

Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>

drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c

@@ -389,6 +389,11 @@ static const struct drm_connector_funcs vmw_legacy_connector_funcs = {
 	.atomic_get_property = vmw_du_connector_atomic_get_property,
 };
 
+static const struct
+drm_connector_helper_funcs vmw_ldu_connector_helper_funcs = {
+	.best_encoder = drm_atomic_helper_best_encoder,
+};
+
 /*
  * Legacy Display Plane Functions
  */
@@ -555,6 +560,8 @@ static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
 		DRM_ERROR("Failed to initialize connector\n");
 		goto err_free;
 	}
+
+	drm_connector_helper_add(connector, &vmw_ldu_connector_helper_funcs);
 	connector->status = vmw_du_connector_detect(connector, true);
 	vmw_connector_state_to_vcs(connector->state)->is_implicit = true;
 

drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c

@@ -608,6 +608,14 @@ static const struct drm_connector_funcs vmw_sou_connector_funcs = {
 	.atomic_get_property = vmw_du_connector_atomic_get_property,
 };
 
+
+static const struct
+drm_connector_helper_funcs vmw_sou_connector_helper_funcs = {
+	.best_encoder = drm_atomic_helper_best_encoder,
+};
+
+
+
 /*
  * Screen Object Display Plane Functions
  */
@@ -827,6 +835,7 @@ static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit)
 		goto err_free;
 	}
 
+	drm_connector_helper_add(connector, &vmw_sou_connector_helper_funcs);
 	connector->status = vmw_du_connector_detect(connector, true);
 	vmw_connector_state_to_vcs(connector->state)->is_implicit = false;
 

drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c

@@ -1189,6 +1189,12 @@ static const struct drm_connector_funcs vmw_stdu_connector_funcs = {
 };
 
 
+static const struct
+drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = {
+	.best_encoder = drm_atomic_helper_best_encoder,
+};
+
+
 
 /******************************************************************************
  * Screen Target Display Plane Functions
@@ -1549,6 +1555,8 @@ static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit)
 		DRM_ERROR("Failed to initialize connector\n");
 		goto err_free;
 	}
+
+	drm_connector_helper_add(connector, &vmw_stdu_connector_helper_funcs);
 	connector->status = vmw_du_connector_detect(connector, false);
 	vmw_connector_state_to_vcs(connector->state)->is_implicit = false;