media: atomisp: Remove clearing of ISP crop / compose rectangles on file release

There is no need to clear the ISP sink-pad crop and source-pad
compose rectangles  on release of the /dev/video# file.

Both will be reset by atomisp_set_fmt() which is guaranteed to
get called by atomisp_queue_setup() (if not called already)
before another stream starts and thus before these selections
are used again.

Also the file injection support the comment talks about has long
been dropped from the driver.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/staging/media/atomisp/pci/atomisp_fops.c

@@ -539,7 +539,6 @@ static int atomisp_release(struct file *file)
 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
 	struct atomisp_sub_device *asd = pipe->asd;
 	struct v4l2_subdev_fh fh;
-	struct v4l2_rect clear_compose = {0};
 
 	v4l2_fh_init(&fh.vfh, vdev);
 
@@ -552,21 +551,6 @@ static int atomisp_release(struct file *file)
 
 	pipe->users--;
 
-	/*
-	 * A little trick here:
-	 * file injection input resolution is recorded in the sink pad,
-	 * therefore can not be cleared when releaseing one device node.
-	 * The sink pad setting can only be cleared when all device nodes
-	 * get released.
-	 */
-	{
-		struct v4l2_mbus_framefmt isp_sink_fmt = { 0 };
-
-		atomisp_subdev_set_ffmt(&asd->subdev, fh.state,
-					V4L2_SUBDEV_FORMAT_ACTIVE,
-					ATOMISP_SUBDEV_PAD_SINK, &isp_sink_fmt);
-	}
-
 	atomisp_css_free_stat_buffers(asd);
 	atomisp_free_internal_buffers(asd);
 
@@ -577,11 +561,6 @@ static int atomisp_release(struct file *file)
 	if (pm_runtime_put_sync(vdev->v4l2_dev->dev) < 0)
 		dev_err(isp->dev, "Failed to power off device\n");
 
-	atomisp_subdev_set_selection(&asd->subdev, fh.state,
-				     V4L2_SUBDEV_FORMAT_ACTIVE,
-				     ATOMISP_SUBDEV_PAD_SOURCE,
-				     V4L2_SEL_TGT_COMPOSE, 0,
-				     &clear_compose);
 	mutex_unlock(&isp->mutex);
 	return 0;
 }