[PATCH 7/8] drm/atmel-hlcdc: use drmm_universal_plane_alloc()

[Ludovic Desroches <ludovic.desroches@microchip.com>]

Use the drmm_universal_plane_alloc() helper to simplify the code. Using
it, we no longer need to register the destroy callback for
drm_plane_funcs.

Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Reviewed-by: Manikandan Muralidharan <manikandan.m@microchip.com>
---
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
index 92132be9823f1e705d266f9547702ea9530bd043..c1f3aaae29fb9f6b947f81e2fb4e7a61e10ac5d9 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
@@ -1225,7 +1225,6 @@ static void atmel_hlcdc_plane_atomic_destroy_state(struct drm_plane *p,
 static const struct drm_plane_funcs layer_plane_funcs = {
 	.update_plane = drm_atomic_helper_update_plane,
 	.disable_plane = drm_atomic_helper_disable_plane,
-	.destroy = drm_plane_cleanup,
 	.reset = atmel_hlcdc_plane_reset,
 	.atomic_duplicate_state = atmel_hlcdc_plane_atomic_duplicate_state,
 	.atomic_destroy_state = atmel_hlcdc_plane_atomic_destroy_state,
@@ -1239,12 +1238,6 @@ static int atmel_hlcdc_plane_create(struct drm_device *dev,
 	enum drm_plane_type type;
 	int ret;
 
-	plane = devm_kzalloc(dev->dev, sizeof(*plane), GFP_KERNEL);
-	if (!plane)
-		return -ENOMEM;
-
-	atmel_hlcdc_layer_init(&plane->layer, desc, dc->hlcdc->regmap);
-
 	if (desc->type == ATMEL_HLCDC_BASE_LAYER)
 		type = DRM_PLANE_TYPE_PRIMARY;
 	else if (desc->type == ATMEL_HLCDC_CURSOR_LAYER)
@@ -1252,13 +1245,13 @@ static int atmel_hlcdc_plane_create(struct drm_device *dev,
 	else
 		type = DRM_PLANE_TYPE_OVERLAY;
 
-	ret = drm_universal_plane_init(dev, &plane->base, 0,
-				       &layer_plane_funcs,
-				       desc->formats->formats,
-				       desc->formats->nformats,
-				       NULL, type, NULL);
-	if (ret)
-		return ret;
+	plane = drmm_universal_plane_alloc(dev, struct atmel_hlcdc_plane, base, 0,
+					   &layer_plane_funcs, desc->formats->formats,
+					   desc->formats->nformats, NULL, type, NULL);
+	if (IS_ERR(plane))
+		return PTR_ERR(plane);
+
+	atmel_hlcdc_layer_init(&plane->layer, desc, dc->hlcdc->regmap);
 
 	drm_plane_helper_add(&plane->base,
 			     &atmel_hlcdc_layer_plane_helper_funcs);

-- 
2.51.0