[media] media: mx2_camera: Don't modify non volatile parameters in try_fmt

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
[g.liakhovetski@gmx.de: also don't clear pcdev->resizing in .try_fmt()]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/platform/soc_camera/mx2_camera.c

@@ -1376,6 +1376,7 @@ static int mx2_camera_try_fmt(struct soc_camera_device *icd,
 	__u32 pixfmt = pix->pixelformat;
 	struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
 	struct mx2_camera_dev *pcdev = ici->priv;
+	struct mx2_fmt_cfg *emma_prp;
 	unsigned int width_limit;
 	int ret;
 
@@ -1438,12 +1439,11 @@ static int mx2_camera_try_fmt(struct soc_camera_device *icd,
 		__func__, pcdev->s_width, pcdev->s_height);
 
 	/* If the sensor does not support image size try PrP resizing */
-	pcdev->emma_prp = mx27_emma_prp_get_format(xlate->code,
+	emma_prp = mx27_emma_prp_get_format(xlate->code,
 						   xlate->host_fmt->fourcc);
 
-	memset(pcdev->resizing, 0, sizeof(pcdev->resizing));
 	if ((mf.width != pix->width || mf.height != pix->height) &&
-		pcdev->emma_prp->cfg.in_fmt == PRP_CNTL_DATA_IN_YUV422) {
+		emma_prp->cfg.in_fmt == PRP_CNTL_DATA_IN_YUV422) {
 		if (mx2_emmaprp_resize(pcdev, &mf, pix, false) < 0)
 			dev_dbg(icd->parent, "%s: can't resize\n", __func__);
 	}