[media] v4l2: replace video op g_mbus_fmt by pad op get_fmt

The g_mbus_fmt video op is a duplicate of the pad op. Replace all uses
by the get_fmt pad op and remove the video op.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Cc: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/i2c/saa6752hs.c b/drivers/media/i2c/saa6752hs.c
index f14c0e6..b382907 100644
--- a/drivers/media/i2c/saa6752hs.c
+++ b/drivers/media/i2c/saa6752hs.c
@@ -554,10 +554,16 @@
 	return 0;
 }
 
-static int saa6752hs_g_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
+static int saa6752hs_get_fmt(struct v4l2_subdev *sd,
+		struct v4l2_subdev_pad_config *cfg,
+		struct v4l2_subdev_format *format)
 {
+	struct v4l2_mbus_framefmt *f = &format->format;
 	struct saa6752hs_state *h = to_state(sd);
 
+	if (format->pad)
+		return -EINVAL;
+
 	if (h->video_format == SAA6752HS_VF_UNKNOWN)
 		h->video_format = SAA6752HS_VF_D1;
 	f->width = v4l2_format_table[h->video_format].fmt.pix.width;
@@ -649,12 +655,16 @@
 	.s_std = saa6752hs_s_std,
 	.s_mbus_fmt = saa6752hs_s_mbus_fmt,
 	.try_mbus_fmt = saa6752hs_try_mbus_fmt,
-	.g_mbus_fmt = saa6752hs_g_mbus_fmt,
+};
+
+static const struct v4l2_subdev_pad_ops saa6752hs_pad_ops = {
+	.get_fmt = saa6752hs_get_fmt,
 };
 
 static const struct v4l2_subdev_ops saa6752hs_ops = {
 	.core = &saa6752hs_core_ops,
 	.video = &saa6752hs_video_ops,
+	.pad = &saa6752hs_pad_ops,
 };
 
 static int saa6752hs_probe(struct i2c_client *client,