media: ti: j721e-csi2rx: Remove unused link_validation code

Link validation between subdev and video node is not performed since the
creation of subdev for CSI2RX shim IP. Remove this unused code to
prevent compile-time warnings like:

drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c:1403:45: warning: `ti_csi2rx_video_entity_ops` defined but not used [-Wunused-const-variable=]
 1403 | static const struct media_entity_operations ti_csi2rx_video_entity_ops = {
      |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 8d22a2769b4e ("media: ti: j721e-csi2rx: separate out device and context")
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Reviewed-by: Devarsh Thakkar <devarsht@ti.com>

1 files changed, 0 insertions, 74 deletions

diff --git a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c
index 6c0a33a83dcb..e5bcd8423dc5 100644
--- a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c
+++ b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c
@@ -1330,80 +1330,6 @@ static int ti_csi2rx_init_vb2q(struct ti_csi2rx_ctx *ctx)
 	return 0;
 }
 
-static int ti_csi2rx_link_validate_get_fmt(struct media_pad *pad,
-					   struct v4l2_subdev_format *fmt)
-{
-	if (is_media_entity_v4l2_subdev(pad->entity)) {
-		struct v4l2_subdev *sd =
-			media_entity_to_v4l2_subdev(pad->entity);
-
-		fmt->which = V4L2_SUBDEV_FORMAT_ACTIVE;
-		fmt->pad = pad->index;
-		return v4l2_subdev_call(sd, pad, get_fmt, NULL, fmt);
-	}
-
-	WARN(pad->entity->function != MEDIA_ENT_F_IO_V4L,
-	     "Driver bug! Wrong media entity type 0x%08x, entity %s\n",
-	     pad->entity->function, pad->entity->name);
-
-	return -EINVAL;
-}
-
-static int ti_csi2rx_link_validate(struct media_link *link)
-{
-	struct media_entity *entity = link->sink->entity;
-	struct video_device *vdev = media_entity_to_video_device(entity);
-	struct ti_csi2rx_ctx *ctx = container_of(vdev, struct ti_csi2rx_ctx, vdev);
-	struct ti_csi2rx_dev *csi = ctx->csi;
-	struct v4l2_pix_format *csi_fmt = &ctx->v_fmt.fmt.pix;
-	struct v4l2_subdev_format source_fmt;
-	const struct ti_csi2rx_fmt *ti_fmt;
-	int ret;
-
-	ret = ti_csi2rx_link_validate_get_fmt(link->source, &source_fmt);
-	if (ret)
-		return ret;
-
-	if (source_fmt.format.width != csi_fmt->width) {
-		dev_dbg(csi->dev, "Width does not match (source %u, sink %u)\n",
-			source_fmt.format.width, csi_fmt->width);
-		return -EPIPE;
-	}
-
-	if (source_fmt.format.height != csi_fmt->height) {
-		dev_dbg(csi->dev, "Height does not match (source %u, sink %u)\n",
-			source_fmt.format.height, csi_fmt->height);
-		return -EPIPE;
-	}
-
-	if (source_fmt.format.field != csi_fmt->field &&
-	    csi_fmt->field != V4L2_FIELD_NONE) {
-		dev_dbg(csi->dev, "Field does not match (source %u, sink %u)\n",
-			source_fmt.format.field, csi_fmt->field);
-		return -EPIPE;
-	}
-
-	ti_fmt = find_format_by_code(source_fmt.format.code);
-	if (!ti_fmt) {
-		dev_dbg(csi->dev, "Media bus format 0x%x not supported\n",
-			source_fmt.format.code);
-		return -EPIPE;
-	}
-
-	if (ctx->v_fmt.fmt.pix.pixelformat != ti_fmt->fourcc) {
-		dev_dbg(csi->dev,
-			"Cannot transform source fmt 0x%x to sink fmt 0x%x\n",
-			ctx->v_fmt.fmt.pix.pixelformat, ti_fmt->fourcc);
-		return -EPIPE;
-	}
-
-	return 0;
-}
-
-static const struct media_entity_operations ti_csi2rx_video_entity_ops = {
-	.link_validate = ti_csi2rx_link_validate,
-};
-
 static int ti_csi2rx_init_dma(struct ti_csi2rx_ctx *ctx)
 {
 	struct dma_slave_config cfg = {