1 files changed, 82 insertions, 12 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index cad2a7e5166f..df9bf3c9206e 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -343,9 +343,10 @@ static int __drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *
  * The @primary and @cursor planes are only relevant for legacy uAPI, see
  * &drm_crtc.primary and &drm_crtc.cursor.
  *
- * Note: consider using drmm_crtc_alloc_with_planes() instead of
- * drm_crtc_init_with_planes() to let the DRM managed resource infrastructure
- * take care of cleanup and deallocation.
+ * Note: consider using drmm_crtc_alloc_with_planes() or
+ * drmm_crtc_init_with_planes() instead of drm_crtc_init_with_planes()
+ * to let the DRM managed resource infrastructure take care of cleanup
+ * and deallocation.
  *
  * Returns:
  * Zero on success, error code on failure.
@@ -370,14 +371,88 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
 }
 EXPORT_SYMBOL(drm_crtc_init_with_planes);
 
-static void drmm_crtc_alloc_with_planes_cleanup(struct drm_device *dev,
-						void *ptr)
+static void drmm_crtc_init_with_planes_cleanup(struct drm_device *dev,
+					       void *ptr)
 {
 	struct drm_crtc *crtc = ptr;
 
 	drm_crtc_cleanup(crtc);
 }
 
+__printf(6, 0)
+static int __drmm_crtc_init_with_planes(struct drm_device *dev,
+					struct drm_crtc *crtc,
+					struct drm_plane *primary,
+					struct drm_plane *cursor,
+					const struct drm_crtc_funcs *funcs,
+					const char *name,
+					va_list args)
+{
+	int ret;
+
+	drm_WARN_ON(dev, funcs && funcs->destroy);
+
+	ret = __drm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs,
+					  name, args);
+	if (ret)
+		return ret;
+
+	ret = drmm_add_action_or_reset(dev, drmm_crtc_init_with_planes_cleanup,
+				       crtc);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+/**
+ * drmm_crtc_init_with_planes - Initialise a new CRTC object with
+ *    specified primary and cursor planes.
+ * @dev: DRM device
+ * @crtc: CRTC object to init
+ * @primary: Primary plane for CRTC
+ * @cursor: Cursor plane for CRTC
+ * @funcs: callbacks for the new CRTC
+ * @name: printf style format string for the CRTC name, or NULL for default name
+ *
+ * Inits a new object created as base part of a driver crtc object. Drivers
+ * should use this function instead of drm_crtc_init(), which is only provided
+ * for backwards compatibility with drivers which do not yet support universal
+ * planes). For really simple hardware which has only 1 plane look at
+ * drm_simple_display_pipe_init() instead.
+ *
+ * Cleanup is automatically handled through registering
+ * drmm_crtc_cleanup() with drmm_add_action(). The crtc structure should
+ * be allocated with drmm_kzalloc().
+ *
+ * The @drm_crtc_funcs.destroy hook must be NULL.
+ *
+ * The @primary and @cursor planes are only relevant for legacy uAPI, see
+ * &drm_crtc.primary and &drm_crtc.cursor.
+ *
+ * Returns:
+ * Zero on success, error code on failure.
+ */
+int drmm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
+			       struct drm_plane *primary,
+			       struct drm_plane *cursor,
+			       const struct drm_crtc_funcs *funcs,
+			       const char *name, ...)
+{
+	va_list ap;
+	int ret;
+
+	va_start(ap, name);
+	ret = __drmm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs,
+					   name, ap);
+	va_end(ap);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+EXPORT_SYMBOL(drmm_crtc_init_with_planes);
+
 void *__drmm_crtc_alloc_with_planes(struct drm_device *dev,
 				    size_t size, size_t offset,
 				    struct drm_plane *primary,
@@ -400,17 +475,12 @@ void *__drmm_crtc_alloc_with_planes(struct drm_device *dev,
 	crtc = container + offset;
 
 	va_start(ap, name);
-	ret = __drm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs,
-					  name, ap);
+	ret = __drmm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs,
+					   name, ap);
 	va_end(ap);
 	if (ret)
 		return ERR_PTR(ret);
 
-	ret = drmm_add_action_or_reset(dev, drmm_crtc_alloc_with_planes_cleanup,
-				       crtc);
-	if (ret)
-		return ERR_PTR(ret);
-
 	return container;
 }
 EXPORT_SYMBOL(__drmm_crtc_alloc_with_planes);