media: staging: rkisp1: set pads array of the resizer to size 2

Currently the 'pads' and 'pad_cfg' arrays of the rkisp1_resizer
are of size 'RKISP1_ISP_PAD_MAX' which is 4. But the resizer
has only two pads. Change the size of the arrays to 2 by adding
and using 'RKISP1_RSZ_PAD_MAX' similar to the way it is done in
the isp entity.

[hverkuil: fix typos in commit log]
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/rkisp1/rkisp1-common.h

@@ -52,6 +52,7 @@
 enum rkisp1_rsz_pad {
 	RKISP1_RSZ_PAD_SINK,
 	RKISP1_RSZ_PAD_SRC,
+	RKISP1_RSZ_PAD_MAX
 };
 
 enum rkisp1_stream_id {
@@ -219,8 +220,8 @@ struct rkisp1_resizer {
 	struct v4l2_subdev sd;
 	enum rkisp1_stream_id id;
 	struct rkisp1_device *rkisp1;
-	struct media_pad pads[RKISP1_ISP_PAD_MAX];
-	struct v4l2_subdev_pad_config pad_cfg[RKISP1_ISP_PAD_MAX];
+	struct media_pad pads[RKISP1_RSZ_PAD_MAX];
+	struct v4l2_subdev_pad_config pad_cfg[RKISP1_RSZ_PAD_MAX];
 	const struct rkisp1_rsz_config *config;
 	enum v4l2_pixel_encoding pixel_enc;
 	struct mutex ops_lock;

drivers/staging/media/rkisp1/rkisp1-resizer.c

@@ -735,7 +735,7 @@ static int rkisp1_rsz_register(struct rkisp1_resizer *rsz)
 	rsz->pixel_enc = RKISP1_DEF_PIXEL_ENC;
 
 	mutex_init(&rsz->ops_lock);
-	ret = media_entity_pads_init(&sd->entity, 2, pads);
+	ret = media_entity_pads_init(&sd->entity, RKISP1_RSZ_PAD_MAX, pads);
 	if (ret)
 		return ret;