media: atomisp: Remove unused fields from struct atomisp_input_subdev

Remove unused fields from struct atomisp_input_subdev:

1. frame_size is never used at all
2. sensor_index is always 0, just directly pass 0 in the single user.

Link: https://lore.kernel.org/r/20230518153733.195306-3-hdegoede@redhat.comReviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/staging/media/atomisp/pci/atomisp_internal.h

@@ -126,15 +126,12 @@ struct atomisp_input_subdev {
 	enum atomisp_camera_port port;
 	struct v4l2_subdev *camera;
 	struct v4l2_subdev *motor;
-	struct v4l2_frmsizeenum frame_size;
 
 	/*
 	 * To show this resource is used by
 	 * which stream, in ISP multiple stream mode
 	 */
 	struct atomisp_sub_device *asd;
-
-	int sensor_index;
 };
 
 enum atomisp_dfs_mode {

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

@@ -673,7 +673,7 @@ static int atomisp_s_input(struct file *file, void *fh, unsigned int input)
 
 	/* select operating sensor */
 	ret = v4l2_subdev_call(isp->inputs[input].camera, video, s_routing,
-			       0, isp->inputs[input].sensor_index, 0);
+			       0, 0, 0);
 	if (ret && (ret != -ENOIOCTLCMD)) {
 		dev_err(isp->dev, "Failed to select sensor\n");
 		return ret;

drivers/staging/media/atomisp/pci/atomisp_v4l2.c

@@ -866,13 +866,6 @@ static int atomisp_subdev_probe(struct atomisp_device *isp)
 			isp->inputs[isp->input_cnt].type = subdevs->type;
 			isp->inputs[isp->input_cnt].port = subdevs->port;
 			isp->inputs[isp->input_cnt].camera = subdevs->subdev;
-			isp->inputs[isp->input_cnt].sensor_index = 0;
-			/*
-			 * initialize the subdev frame size, then next we can
-			 * judge whether frame_size store effective value via
-			 * pixel_format.
-			 */
-			isp->inputs[isp->input_cnt].frame_size.pixel_format = 0;
 			isp->input_cnt++;
 			break;
 		case CAMERA_MOTOR: