A recent commit "[media] v4l2: make vidioc_s_crop const" introduced
warnings in sh_mobile_ceu_camera. Fix them by cleanly separating writable
and read-only variables in cropping operations.

Signed-off-by: Guennadi Liakhovetski <[email protected]>
---
 .../platform/soc_camera/sh_mobile_ceu_camera.c     |   13 +++++++------
 1 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c 
b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c
index 78bcf23..4642e0d 100644
--- a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c
+++ b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c
@@ -1213,13 +1213,13 @@ static void sh_mobile_ceu_put_formats(struct 
soc_camera_device *icd)
 }
 
 /* Check if any dimension of r1 is smaller than respective one of r2 */
-static bool is_smaller(struct v4l2_rect *r1, struct v4l2_rect *r2)
+static bool is_smaller(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
 {
        return r1->width < r2->width || r1->height < r2->height;
 }
 
 /* Check if r1 fails to cover r2 */
-static bool is_inside(struct v4l2_rect *r1, struct v4l2_rect *r2)
+static bool is_inside(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
 {
        return r1->left > r2->left || r1->top > r2->top ||
                r1->left + r1->width < r2->left + r2->width ||
@@ -1294,7 +1294,7 @@ static void update_subrect(struct sh_mobile_ceu_cam *cam)
  * 3. if (2) failed, try to request the maximum image
  */
 static int client_s_crop(struct soc_camera_device *icd, struct v4l2_crop *crop,
-                        const struct v4l2_crop *cam_crop)
+                        struct v4l2_crop *cam_crop)
 {
        struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
        struct v4l2_rect *rect = &crop->c, *cam_rect = &cam_crop->c;
@@ -1550,7 +1550,8 @@ static int client_scale(struct soc_camera_device *icd,
 static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
                                  const struct v4l2_crop *a)
 {
-       struct v4l2_rect *rect = &a->c;
+       struct v4l2_crop a_writable = *a;
+       const struct v4l2_rect *rect = &a_writable.c;
        struct device *dev = icd->parent;
        struct soc_camera_host *ici = to_soc_camera_host(dev);
        struct sh_mobile_ceu_dev *pcdev = ici->priv;
@@ -1576,7 +1577,7 @@ static int sh_mobile_ceu_set_crop(struct 
soc_camera_device *icd,
         * 1. - 2. Apply iterative camera S_CROP for new input window, read back
         * actual camera rectangle.
         */
-       ret = client_s_crop(icd, a, &cam_crop);
+       ret = client_s_crop(icd, &a_writable, &cam_crop);
        if (ret < 0)
                return ret;
 
@@ -1977,7 +1978,7 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device 
*icd,
 }
 
 static int sh_mobile_ceu_set_livecrop(struct soc_camera_device *icd,
-                                     struct v4l2_crop *a)
+                                     const struct v4l2_crop *a)
 {
        struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
        struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
-- 
1.7.2.5

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