media: atomisp: Remove isp->need_gfx_throttle field

Remove the isp->need_gfx_throttle field it is only ever set and
never read.

Also the code setting it is broken, comparing run_mode->val to
ATOMISP_SUBDEV_PAD_SOURCE_VIDEO which are not of the same type /
not part of the same enum.
Reviewed-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_cmd.c

@@ -4693,16 +4693,6 @@ int atomisp_set_fmt(struct video_device *vdev, struct v4l2_format *f)
 	f->fmt.pix = pipe->pix;
 	f->fmt.pix.priv = PAGE_ALIGN(pipe->pix.width *
 				     pipe->pix.height * 2);
-
-	/*
-	 * If in video 480P case, no GFX throttle
-	 */
-	if (asd->run_mode->val == ATOMISP_SUBDEV_PAD_SOURCE_VIDEO &&
-	    f->fmt.pix.width == 720 && f->fmt.pix.height == 480)
-		isp->need_gfx_throttle = false;
-	else
-		isp->need_gfx_throttle = true;
-
 	/* Report the needed sizes */
 	f->fmt.pix.sizeimage = pipe->pix.sizeimage;
 	f->fmt.pix.bytesperline = pipe->pix.bytesperline;

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

@@ -539,7 +539,6 @@ static void atomisp_dev_init_struct(struct atomisp_device *isp)
 {
 	unsigned int i;
 
-	isp->need_gfx_throttle = true;
 	isp->isp_fatal_error = false;
 	isp->mipi_frame_size = 0;
 

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

@@ -211,8 +211,6 @@ struct atomisp_device {
 
 	spinlock_t lock; /* Protects asd.streaming */
 
-	bool need_gfx_throttle;
-
 	unsigned int mipi_frame_size;
 	const struct atomisp_dfs_config *dfs;
 	unsigned int hpll_freq;