diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index db6465756e49..8313724f06b3 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -4906,41 +4906,6 @@ int atomisp_try_fmt(struct video_device *vdev, struct v4l2_pix_format *f,
 	return 0;
 }
 
-static int
-atomisp_try_fmt_file(struct atomisp_device *isp, struct v4l2_format *f)
-{
-	u32 width = f->fmt.pix.width;
-	u32 height = f->fmt.pix.height;
-	u32 pixelformat = f->fmt.pix.pixelformat;
-	enum v4l2_field field = f->fmt.pix.field;
-	u32 depth;
-
-	if (!atomisp_get_format_bridge(pixelformat)) {
-		dev_err(isp->dev, "Wrong output pixelformat\n");
-		return -EINVAL;
-	}
-
-	depth = atomisp_get_pixel_depth(pixelformat);
-
-	if (field == V4L2_FIELD_ANY) {
-		field = V4L2_FIELD_NONE;
-	} else if (field != V4L2_FIELD_NONE) {
-		dev_err(isp->dev, "Wrong output field\n");
-		return -EINVAL;
-	}
-
-	f->fmt.pix.field = field;
-	f->fmt.pix.width = clamp_t(u32,
-				   rounddown(width, (u32)ATOM_ISP_STEP_WIDTH),
-				   ATOM_ISP_MIN_WIDTH, ATOM_ISP_MAX_WIDTH);
-	f->fmt.pix.height = clamp_t(u32, rounddown(height,
-				    (u32)ATOM_ISP_STEP_HEIGHT),
-				    ATOM_ISP_MIN_HEIGHT, ATOM_ISP_MAX_HEIGHT);
-	f->fmt.pix.bytesperline = (width * depth) >> 3;
-
-	return 0;
-}
-
 enum mipi_port_id __get_mipi_port(struct atomisp_device *isp,
 				  enum atomisp_camera_port port)
 {
@@ -6078,55 +6043,6 @@ int atomisp_set_fmt(struct video_device *vdev, struct v4l2_format *f)
 	return 0;
 }
 
-int atomisp_set_fmt_file(struct video_device *vdev, struct v4l2_format *f)
-{
-	struct atomisp_device *isp = video_get_drvdata(vdev);
-	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
-	struct atomisp_sub_device *asd = pipe->asd;
-	struct v4l2_mbus_framefmt ffmt = {0};
-	const struct atomisp_format_bridge *format_bridge;
-	struct v4l2_subdev_fh fh;
-	int ret;
-
-	if (!asd) {
-		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
-			__func__, vdev->name);
-		return -EINVAL;
-	}
-
-	v4l2_fh_init(&fh.vfh, vdev);
-
-	dev_dbg(isp->dev, "setting fmt %ux%u 0x%x for file inject\n",
-		f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.pixelformat);
-	ret = atomisp_try_fmt_file(isp, f);
-	if (ret) {
-		dev_err(isp->dev, "atomisp_try_fmt_file err: %d\n", ret);
-		return ret;
-	}
-
-	format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
-	if (!format_bridge) {
-		dev_dbg(isp->dev, "atomisp_get_format_bridge err! fmt:0x%x\n",
-			f->fmt.pix.pixelformat);
-		return -EINVAL;
-	}
-
-	pipe->pix = f->fmt.pix;
-	atomisp_css_input_set_mode(asd, IA_CSS_INPUT_MODE_FIFO);
-	atomisp_css_input_configure_port(asd,
-					 __get_mipi_port(isp, ATOMISP_CAMERA_PORT_PRIMARY), 2, 0xffff4,
-					 0, 0, 0, 0);
-	ffmt.width = f->fmt.pix.width;
-	ffmt.height = f->fmt.pix.height;
-	ffmt.code = format_bridge->mbus_code;
-
-	atomisp_subdev_set_ffmt(&asd->subdev, fh.state,
-				V4L2_SUBDEV_FORMAT_ACTIVE,
-				ATOMISP_SUBDEV_PAD_SINK, &ffmt);
-
-	return 0;
-}
-
 int atomisp_set_shading_table(struct atomisp_sub_device *asd,
 			      struct atomisp_shading_table *user_shading_table)
 {
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.h b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
index ebc729468f87..ed1ad5389104 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
@@ -269,7 +269,6 @@ int atomisp_try_fmt(struct video_device *vdev, struct v4l2_pix_format *f,
 		    bool *res_overflow);
 
 int atomisp_set_fmt(struct video_device *vdev, struct v4l2_format *f);
-int atomisp_set_fmt_file(struct video_device *vdev, struct v4l2_format *f);
 
 int atomisp_set_shading_table(struct atomisp_sub_device *asd,
 			      struct atomisp_shading_table *shading_table);
diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
index 9ff0bcc04307..08b62fc65c76 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_fops.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -1269,14 +1269,6 @@ static int atomisp_mmap(struct file *file, struct vm_area_struct *vma)
 	return ret;
 }
 
-static int atomisp_file_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
-
-	return videobuf_mmap_mapper(&pipe->outq, vma);
-}
-
 static __poll_t atomisp_poll(struct file *file,
 			     struct poll_table_struct *pt)
 {
@@ -1309,15 +1301,3 @@ const struct v4l2_file_operations atomisp_fops = {
 #endif
 	.poll = atomisp_poll,
 };
-
-const struct v4l2_file_operations atomisp_file_fops = {
-	.owner = THIS_MODULE,
-	.open = atomisp_open,
-	.release = atomisp_release,
-	.mmap = atomisp_file_mmap,
-	.unlocked_ioctl = video_ioctl2,
-#ifdef CONFIG_COMPAT
-	/* .compat_ioctl32 = atomisp_compat_ioctl32, */
-#endif
-	.poll = atomisp_poll,
-};
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index 571a2df75238..345970ca4fcb 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -871,20 +871,6 @@ static int atomisp_enum_fmt_cap(struct file *file, void *fh,
 	return -EINVAL;
 }
 
-static int atomisp_g_fmt_file(struct file *file, void *fh,
-			      struct v4l2_format *f)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct atomisp_device *isp = video_get_drvdata(vdev);
-	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
-
-	rt_mutex_lock(&isp->mutex);
-	f->fmt.pix = pipe->pix;
-	rt_mutex_unlock(&isp->mutex);
-
-	return 0;
-}
-
 static int atomisp_adjust_fmt(struct v4l2_format *f)
 {
 	const struct atomisp_format_bridge *format_bridge;
@@ -1018,19 +1004,6 @@ static int atomisp_s_fmt_cap(struct file *file, void *fh,
 	return ret;
 }
 
-static int atomisp_s_fmt_file(struct file *file, void *fh,
-			      struct v4l2_format *f)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct atomisp_device *isp = video_get_drvdata(vdev);
-	int ret;
-
-	rt_mutex_lock(&isp->mutex);
-	ret = atomisp_set_fmt_file(vdev, f);
-	rt_mutex_unlock(&isp->mutex);
-	return ret;
-}
-
 /*
  * Free videobuffer buffer priv data
  */
@@ -1258,22 +1231,6 @@ int atomisp_reqbufs(struct file *file, void *fh,
 	return ret;
 }
 
-static int atomisp_reqbufs_file(struct file *file, void *fh,
-				struct v4l2_requestbuffers *req)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
-
-	if (req->count == 0) {
-		mutex_lock(&pipe->outq.vb_lock);
-		atomisp_videobuf_free_queue(&pipe->outq);
-		mutex_unlock(&pipe->outq.vb_lock);
-		return 0;
-	}
-
-	return videobuf_reqbufs(&pipe->outq, req);
-}
-
 /* application query the status of a buffer */
 static int atomisp_querybuf(struct file *file, void *fh,
 			    struct v4l2_buffer *buf)
@@ -1284,15 +1241,6 @@ static int atomisp_querybuf(struct file *file, void *fh,
 	return videobuf_querybuf(&pipe->capq, buf);
 }
 
-static int atomisp_querybuf_file(struct file *file, void *fh,
-				 struct v4l2_buffer *buf)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
-
-	return videobuf_querybuf(&pipe->outq, buf);
-}
-
 /*
  * Applications call the VIDIOC_QBUF ioctl to enqueue an empty (capturing) or
  * filled (output) buffer in the drivers incoming queue.
@@ -1473,48 +1421,6 @@ static int atomisp_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
 	return ret;
 }
 
-static int atomisp_qbuf_file(struct file *file, void *fh,
-			     struct v4l2_buffer *buf)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct atomisp_device *isp = video_get_drvdata(vdev);
-	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
-	int ret;
-
-	rt_mutex_lock(&isp->mutex);
-	if (isp->isp_fatal_error) {
-		ret = -EIO;
-		goto error;
-	}
-
-	if (!buf || buf->index >= VIDEO_MAX_FRAME ||
-	    !pipe->outq.bufs[buf->index]) {
-		dev_err(isp->dev, "Invalid index for qbuf.\n");
-		ret = -EINVAL;
-		goto error;
-	}
-
-	if (buf->memory != V4L2_MEMORY_MMAP) {
-		dev_err(isp->dev, "Unsupported memory method\n");
-		ret = -EINVAL;
-		goto error;
-	}
-
-	if (buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
-		dev_err(isp->dev, "Unsupported buffer type\n");
-		ret = -EINVAL;
-		goto error;
-	}
-	rt_mutex_unlock(&isp->mutex);
-
-	return videobuf_qbuf(&pipe->outq, buf);
-
-error:
-	rt_mutex_unlock(&isp->mutex);
-
-	return ret;
-}
-
 static int __get_frame_exp_id(struct atomisp_video_pipe *pipe,
 			      struct v4l2_buffer *buf)
 {
@@ -2882,24 +2788,6 @@ static int atomisp_s_parm(struct file *file, void *fh,
 	return rval == -ENOIOCTLCMD ? 0 : rval;
 }
 
-static int atomisp_s_parm_file(struct file *file, void *fh,
-			       struct v4l2_streamparm *parm)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct atomisp_device *isp = video_get_drvdata(vdev);
-
-	if (parm->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) {
-		dev_err(isp->dev, "unsupported v4l2 buf type for output\n");
-		return -EINVAL;
-	}
-
-	rt_mutex_lock(&isp->mutex);
-	isp->sw_contex.file_input = true;
-	rt_mutex_unlock(&isp->mutex);
-
-	return 0;
-}
-
 static long atomisp_vidioc_default(struct file *file, void *fh,
 				   bool valid_prio, unsigned int cmd, void *arg)
 {
@@ -3230,13 +3118,3 @@ const struct v4l2_ioctl_ops atomisp_ioctl_ops = {
 	.vidioc_s_parm = atomisp_s_parm,
 	.vidioc_g_parm = atomisp_g_parm,
 };
-
-const struct v4l2_ioctl_ops atomisp_file_ioctl_ops = {
-	.vidioc_querycap = atomisp_querycap,
-	.vidioc_g_fmt_vid_out = atomisp_g_fmt_file,
-	.vidioc_s_fmt_vid_out = atomisp_s_fmt_file,
-	.vidioc_s_parm = atomisp_s_parm_file,
-	.vidioc_reqbufs = atomisp_reqbufs_file,
-	.vidioc_querybuf = atomisp_querybuf_file,
-	.vidioc_qbuf = atomisp_qbuf_file,
-};
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.h b/drivers/staging/media/atomisp/pci/atomisp_ioctl.h
index d85e0d697a4e..382b78275240 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.h
@@ -49,12 +49,8 @@ enum ia_css_pipe_id atomisp_get_css_pipe_id(struct atomisp_sub_device
 
 void atomisp_videobuf_free_buf(struct videobuf_buffer *vb);
 
-extern const struct v4l2_file_operations atomisp_file_fops;
-
 extern const struct v4l2_ioctl_ops atomisp_ioctl_ops;
 
-extern const struct v4l2_ioctl_ops atomisp_file_ioctl_ops;
-
 unsigned int atomisp_streaming_count(struct atomisp_device *isp);
 
 /* compat_ioctl for 32bit userland app and 64bit kernel */
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 5488a02200ed..672b3b68c613 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -442,12 +442,6 @@ int atomisp_video_init(struct atomisp_video_pipe *video, const char *name,
 		video->vdev.fops = &atomisp_fops;
 		video->vdev.ioctl_ops = &atomisp_ioctl_ops;
 		break;
-	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
-		direction = "input";
-		video->pad.flags = MEDIA_PAD_FL_SOURCE;
-		video->vdev.fops = &atomisp_file_fops;
-		video->vdev.ioctl_ops = &atomisp_file_ioctl_ops;
-		break;
 	default:
 		return -EINVAL;
 	}
