[media] v4l: vsp1: Implement and use the subdev pad::init_cfg configuration

Turn the custom formats initialization function into a standard
pad::init_cfg handler and use it in subdevs instead of initializing
formats in the subdev open handler.

This makes the subdev open handler empty, so remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/platform/vsp1/vsp1_bru.c

@@ -387,6 +387,7 @@ static struct v4l2_subdev_video_ops bru_video_ops = {
 };
 
 static struct v4l2_subdev_pad_ops bru_pad_ops = {
+	.init_cfg = vsp1_entity_init_cfg,
 	.enum_mbus_code = bru_enum_mbus_code,
 	.enum_frame_size = bru_enum_frame_size,
 	.get_fmt = bru_get_format,

drivers/media/platform/vsp1/vsp1_entity.c

@@ -62,16 +62,15 @@ vsp1_entity_get_pad_format(struct vsp1_entity *entity,
 }
 
 /*
- * vsp1_entity_init_formats - Initialize formats on all pads
+ * vsp1_entity_init_cfg - Initialize formats on all pads
  * @subdev: V4L2 subdevice
  * @cfg: V4L2 subdev pad configuration
  *
- * Initialize all pad formats with default values. If cfg is not NULL, try
- * formats are initialized on the file handle. Otherwise active formats are
- * initialized on the device.
+ * Initialize all pad formats with default values in the given pad config. This
+ * function can be used as a handler for the subdev pad::init_cfg operation.
  */
-static void vsp1_entity_init_formats(struct v4l2_subdev *subdev,
-				     struct v4l2_subdev_pad_config *cfg)
+int vsp1_entity_init_cfg(struct v4l2_subdev *subdev,
+			 struct v4l2_subdev_pad_config *cfg)
 {
 	struct v4l2_subdev_format format;
 	unsigned int pad;
@@ -85,20 +84,10 @@ static void vsp1_entity_init_formats(struct v4l2_subdev *subdev,
 
 		v4l2_subdev_call(subdev, pad, set_fmt, cfg, &format);
 	}
-}
-
-static int vsp1_entity_open(struct v4l2_subdev *subdev,
-			    struct v4l2_subdev_fh *fh)
-{
-	vsp1_entity_init_formats(subdev, fh->pad);
 
 	return 0;
 }
 
-const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops = {
-	.open = vsp1_entity_open,
-};
-
 /* -----------------------------------------------------------------------------
  * Media Operations
  */
@@ -209,13 +198,12 @@ int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
 	v4l2_subdev_init(subdev, ops);
 
 	subdev->entity.ops = &vsp1->media_ops;
-	subdev->internal_ops = &vsp1_subdev_internal_ops;
 	subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
 	snprintf(subdev->name, sizeof(subdev->name), "%s %s",
 		 dev_name(vsp1->dev), name);
 
-	vsp1_entity_init_formats(subdev, NULL);
+	vsp1_entity_init_cfg(subdev, NULL);
 
 	return 0;
 }

drivers/media/platform/vsp1/vsp1_entity.h

@@ -107,6 +107,8 @@ struct v4l2_mbus_framefmt *
 vsp1_entity_get_pad_format(struct vsp1_entity *entity,
 			   struct v4l2_subdev_pad_config *cfg,
 			   unsigned int pad, u32 which);
+int vsp1_entity_init_cfg(struct v4l2_subdev *subdev,
+			 struct v4l2_subdev_pad_config *cfg);
 
 void vsp1_entity_route_setup(struct vsp1_entity *source);
 

drivers/media/platform/vsp1/vsp1_hsit.c

@@ -163,6 +163,7 @@ static struct v4l2_subdev_video_ops hsit_video_ops = {
 };
 
 static struct v4l2_subdev_pad_ops hsit_pad_ops = {
+	.init_cfg = vsp1_entity_init_cfg,
 	.enum_mbus_code = hsit_enum_mbus_code,
 	.enum_frame_size = hsit_enum_frame_size,
 	.get_fmt = hsit_get_format,

drivers/media/platform/vsp1/vsp1_lif.c

@@ -190,6 +190,7 @@ static struct v4l2_subdev_video_ops lif_video_ops = {
 };
 
 static struct v4l2_subdev_pad_ops lif_pad_ops = {
+	.init_cfg = vsp1_entity_init_cfg,
 	.enum_mbus_code = lif_enum_mbus_code,
 	.enum_frame_size = lif_enum_frame_size,
 	.get_fmt = lif_get_format,

drivers/media/platform/vsp1/vsp1_lut.c

@@ -203,6 +203,7 @@ static struct v4l2_subdev_video_ops lut_video_ops = {
 };
 
 static struct v4l2_subdev_pad_ops lut_pad_ops = {
+	.init_cfg = vsp1_entity_init_cfg,
 	.enum_mbus_code = lut_enum_mbus_code,
 	.enum_frame_size = lut_enum_frame_size,
 	.get_fmt = lut_get_format,

drivers/media/platform/vsp1/vsp1_rpf.c

@@ -127,6 +127,7 @@ static struct v4l2_subdev_video_ops rpf_video_ops = {
 };
 
 static struct v4l2_subdev_pad_ops rpf_pad_ops = {
+	.init_cfg = vsp1_entity_init_cfg,
 	.enum_mbus_code = vsp1_rwpf_enum_mbus_code,
 	.enum_frame_size = vsp1_rwpf_enum_frame_size,
 	.get_fmt = vsp1_rwpf_get_format,

drivers/media/platform/vsp1/vsp1_sru.c

@@ -307,6 +307,7 @@ static struct v4l2_subdev_video_ops sru_video_ops = {
 };
 
 static struct v4l2_subdev_pad_ops sru_pad_ops = {
+	.init_cfg = vsp1_entity_init_cfg,
 	.enum_mbus_code = sru_enum_mbus_code,
 	.enum_frame_size = sru_enum_frame_size,
 	.get_fmt = sru_get_format,

drivers/media/platform/vsp1/vsp1_uds.c

@@ -305,6 +305,7 @@ static struct v4l2_subdev_video_ops uds_video_ops = {
 };
 
 static struct v4l2_subdev_pad_ops uds_pad_ops = {
+	.init_cfg = vsp1_entity_init_cfg,
 	.enum_mbus_code = uds_enum_mbus_code,
 	.enum_frame_size = uds_enum_frame_size,
 	.get_fmt = uds_get_format,

drivers/media/platform/vsp1/vsp1_wpf.c

@@ -138,6 +138,7 @@ static struct v4l2_subdev_video_ops wpf_video_ops = {
 };
 
 static struct v4l2_subdev_pad_ops wpf_pad_ops = {
+	.init_cfg = vsp1_entity_init_cfg,
 	.enum_mbus_code = vsp1_rwpf_enum_mbus_code,
 	.enum_frame_size = vsp1_rwpf_enum_frame_size,
 	.get_fmt = vsp1_rwpf_get_format,