V4L/DVB (12529): soc-camera: switch to s_crop v4l2-subdev video operation

Remove set_crop soc-camera device method and switch to s_crop from v4l2-subdev
video operations. Also extend non-i2c drivers to also hold a pointer to their
v4l2-subdev instance in control device driver-data, i.e., in
dev_get_drvdata((struct device *)to_soc_camera_control(icd))

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

12 files changed, 141 insertions, 137 deletions

diff --git a/drivers/media/video/mt9m001.c b/drivers/media/video/mt9m001.c
index 8b36a74b1be0..6e762cd06e3f 100644
--- a/drivers/media/video/mt9m001.c
+++ b/drivers/media/video/mt9m001.c
@@ -194,11 +194,12 @@ static unsigned long mt9m001_query_bus_param(struct soc_camera_device *icd)
         return soc_camera_apply_sensor_flags(icl, flags);
 }
 
-static int mt9m001_set_crop(struct soc_camera_device *icd,
-                            struct v4l2_rect *rect)
+static int mt9m001_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
 {
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+        struct v4l2_rect *rect = &a->c;
+        struct i2c_client *client = sd->priv;
         struct mt9m001 *mt9m001 = to_mt9m001(client);
+        struct soc_camera_device *icd = client->dev.platform_data;
         int ret;
         const u16 hblank = 9, vblank = 25;
 
@@ -239,15 +240,17 @@ static int mt9m001_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
 {
         struct i2c_client *client = sd->priv;
         struct soc_camera_device *icd = client->dev.platform_data;
-        struct v4l2_rect rect = {
-                .left   = icd->rect_current.left,
-                .top    = icd->rect_current.top,
-                .width  = f->fmt.pix.width,
-                .height = f->fmt.pix.height,
+        struct v4l2_crop a = {
+                .c = {
+                        .left   = icd->rect_current.left,
+                        .top    = icd->rect_current.top,
+                        .width  = f->fmt.pix.width,
+                        .height = f->fmt.pix.height,
+                },
         };
 
         /* No support for scaling so far, just crop. TODO: use skipping */
-        return mt9m001_set_crop(icd, &rect);
+        return mt9m001_s_crop(sd, &a);
 }
 
 static int mt9m001_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
@@ -361,7 +364,6 @@ static const struct v4l2_queryctrl mt9m001_controls[] = {
 static struct soc_camera_ops mt9m001_ops = {
         .init                   = mt9m001_init,
         .release                = mt9m001_release,
-        .set_crop               = mt9m001_set_crop,
         .set_bus_param          = mt9m001_set_bus_param,
         .query_bus_param        = mt9m001_query_bus_param,
         .controls               = mt9m001_controls,
@@ -575,6 +577,7 @@ static struct v4l2_subdev_video_ops mt9m001_subdev_video_ops = {
         .s_stream       = mt9m001_s_stream,
         .s_fmt          = mt9m001_s_fmt,
         .try_fmt        = mt9m001_try_fmt,
+        .s_crop         = mt9m001_s_crop,
 };
 
 static struct v4l2_subdev_ops mt9m001_subdev_ops = {
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index 45101fd90ce0..bef415170186 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -395,11 +395,12 @@ static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f)
         return 0;
 }
 
-static int mt9m111_set_crop(struct soc_camera_device *icd,
-                            struct v4l2_rect *rect)
+static int mt9m111_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
 {
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+        struct v4l2_rect *rect = &a->c;
+        struct i2c_client *client = sd->priv;
         struct mt9m111 *mt9m111 = to_mt9m111(client);
+        struct soc_camera_device *icd = client->dev.platform_data;
         int ret;
 
         dev_dbg(&icd->dev, "%s left=%d, top=%d, width=%d, height=%d\n",
@@ -601,7 +602,6 @@ static struct soc_camera_ops mt9m111_ops = {
         .init                   = mt9m111_init,
         .resume                 = mt9m111_resume,
         .release                = mt9m111_release,
-        .set_crop               = mt9m111_set_crop,
         .query_bus_param        = mt9m111_query_bus_param,
         .set_bus_param          = mt9m111_set_bus_param,
         .controls               = mt9m111_controls,
@@ -908,6 +908,7 @@ static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
 static struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
         .s_fmt          = mt9m111_s_fmt,
         .try_fmt        = mt9m111_try_fmt,
+        .s_crop         = mt9m111_s_crop,
 };
 
 static struct v4l2_subdev_ops mt9m111_subdev_ops = {
diff --git a/drivers/media/video/mt9t031.c b/drivers/media/video/mt9t031.c
index 125973bf08b9..3fa87be2fc6e 100644
--- a/drivers/media/video/mt9t031.c
+++ b/drivers/media/video/mt9t031.c
@@ -321,11 +321,12 @@ static int mt9t031_set_params(struct soc_camera_device *icd,
         return ret < 0 ? ret : 0;
 }
 
-static int mt9t031_set_crop(struct soc_camera_device *icd,
-                            struct v4l2_rect *rect)
+static int mt9t031_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
 {
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+        struct v4l2_rect *rect = &a->c;
+        struct i2c_client *client = sd->priv;
         struct mt9t031 *mt9t031 = to_mt9t031(client);
+        struct soc_camera_device *icd = client->dev.platform_data;
 
         /* Make sure we don't exceed sensor limits */
         if (rect->left + rect->width > icd->rect_max.left + icd->rect_max.width)
@@ -495,7 +496,6 @@ static const struct v4l2_queryctrl mt9t031_controls[] = {
 static struct soc_camera_ops mt9t031_ops = {
         .init                   = mt9t031_init,
         .release                = mt9t031_release,
-        .set_crop               = mt9t031_set_crop,
         .set_bus_param          = mt9t031_set_bus_param,
         .query_bus_param        = mt9t031_query_bus_param,
         .controls               = mt9t031_controls,
@@ -689,6 +689,7 @@ static struct v4l2_subdev_video_ops mt9t031_subdev_video_ops = {
         .s_stream       = mt9t031_s_stream,
         .s_fmt          = mt9t031_s_fmt,
         .try_fmt        = mt9t031_try_fmt,
+        .s_crop         = mt9t031_s_crop,
 };
 
 static struct v4l2_subdev_ops mt9t031_subdev_ops = {
diff --git a/drivers/media/video/mt9v022.c b/drivers/media/video/mt9v022.c
index d2b0981ec1c1..e609ff51aa66 100644
--- a/drivers/media/video/mt9v022.c
+++ b/drivers/media/video/mt9v022.c
@@ -248,10 +248,11 @@ static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd)
                 width_flag;
 }
 
-static int mt9v022_set_crop(struct soc_camera_device *icd,
-                            struct v4l2_rect *rect)
+static int mt9v022_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
 {
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+        struct v4l2_rect *rect = &a->c;
+        struct i2c_client *client = sd->priv;
+        struct soc_camera_device *icd = client->dev.platform_data;
         int ret;
 
         /* Like in example app. Contradicts the datasheet though */
@@ -297,11 +298,13 @@ static int mt9v022_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
         struct mt9v022 *mt9v022 = to_mt9v022(client);
         struct soc_camera_device *icd = client->dev.platform_data;
         struct v4l2_pix_format *pix = &f->fmt.pix;
-        struct v4l2_rect rect = {
-                .left   = icd->rect_current.left,
-                .top    = icd->rect_current.top,
-                .width  = pix->width,
-                .height = pix->height,
+        struct v4l2_crop a = {
+                .c = {
+                        .left   = icd->rect_current.left,
+                        .top    = icd->rect_current.top,
+                        .width  = pix->width,
+                        .height = pix->height,
+                },
         };
 
         /* The caller provides a supported format, as verified per call to
@@ -325,7 +328,7 @@ static int mt9v022_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
         }
 
         /* No support for scaling on this camera, just crop. */
-        return mt9v022_set_crop(icd, &rect);
+        return mt9v022_s_crop(sd, &a);
 }
 
 static int mt9v022_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
@@ -454,7 +457,6 @@ static const struct v4l2_queryctrl mt9v022_controls[] = {
 
 static struct soc_camera_ops mt9v022_ops = {
         .init                   = mt9v022_init,
-        .set_crop               = mt9v022_set_crop,
         .set_bus_param          = mt9v022_set_bus_param,
         .query_bus_param        = mt9v022_query_bus_param,
         .controls               = mt9v022_controls,
@@ -700,6 +702,7 @@ static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = {
         .s_stream       = mt9v022_s_stream,
         .s_fmt          = mt9v022_s_fmt,
         .try_fmt        = mt9v022_try_fmt,
+        .s_crop         = mt9v022_s_crop,
 };
 
 static struct v4l2_subdev_ops mt9v022_subdev_ops = {
diff --git a/drivers/media/video/mx1_camera.c b/drivers/media/video/mx1_camera.c
index 948a4714be9a..add496fca4d3 100644
--- a/drivers/media/video/mx1_camera.c
+++ b/drivers/media/video/mx1_camera.c
@@ -463,9 +463,13 @@ static void mx1_camera_remove_device(struct soc_camera_device *icd)
 }
 
 static int mx1_camera_set_crop(struct soc_camera_device *icd,
-                               struct v4l2_rect *rect)
+                               struct v4l2_crop *a)
 {
-        return icd->ops->set_crop(icd, rect);
+        struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+        struct device *control = to_soc_camera_control(icd);
+        struct v4l2_subdev *sd = dev_get_drvdata(control);
+
+        return v4l2_subdev_call(sd, video, s_crop, a);
 }
 
 static int mx1_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c
index 6c3b7f9b906f..de7ebfbf0397 100644
--- a/drivers/media/video/mx3_camera.c
+++ b/drivers/media/video/mx3_camera.c
@@ -781,10 +781,13 @@ static int acquire_dma_channel(struct mx3_camera_dev *mx3_cam)
 }
 
 static int mx3_camera_set_crop(struct soc_camera_device *icd,
-                               struct v4l2_rect *rect)
+                               struct v4l2_crop *a)
 {
+        struct v4l2_rect *rect = &a->c;
         struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
         struct mx3_camera_dev *mx3_cam = ici->priv;
+        struct device *control = to_soc_camera_control(icd);
+        struct v4l2_subdev *sd = dev_get_drvdata(control);
 
         /*
          * We now know pixel formats and can decide upon DMA-channel(s)
@@ -798,7 +801,7 @@ static int mx3_camera_set_crop(struct soc_camera_device *icd,
 
         configure_geometry(mx3_cam, rect);
 
-        return icd->ops->set_crop(icd, rect);
+        return v4l2_subdev_call(sd, video, s_crop, a);
 }
 
 static int mx3_camera_set_fmt(struct soc_camera_device *icd,
diff --git a/drivers/media/video/ov772x.c b/drivers/media/video/ov772x.c
index 03488f9e1c88..bbe6f2d71c15 100644
--- a/drivers/media/video/ov772x.c
+++ b/drivers/media/video/ov772x.c
@@ -955,24 +955,6 @@ ov772x_set_fmt_error:
         return ret;
 }
 
-/* Cannot crop, just return the current geometry */
-static int ov772x_set_crop(struct soc_camera_device *icd,
-                           struct v4l2_rect *rect)
-{
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
-        struct ov772x_priv *priv = to_ov772x(client);
-
-        if (!priv->fmt || !priv->win)
-                return -EINVAL;
-
-        rect->left = 0;
-        rect->top = 0;
-        rect->width = priv->win->width;
-        rect->height = priv->win->height;
-
-        return 0;
-}
-
 static int ov772x_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
 {
         struct i2c_client *client = sd->priv;
@@ -1060,7 +1042,6 @@ static int ov772x_video_probe(struct soc_camera_device *icd,
 }
 
 static struct soc_camera_ops ov772x_ops = {
-        .set_crop               = ov772x_set_crop,
         .set_bus_param          = ov772x_set_bus_param,
         .query_bus_param        = ov772x_query_bus_param,
         .controls               = ov772x_controls,
diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c
index 0e4daaad2f4d..c38ce84b944d 100644
--- a/drivers/media/video/pxa_camera.c
+++ b/drivers/media/video/pxa_camera.c
@@ -1281,10 +1281,13 @@ static int pxa_camera_get_formats(struct soc_camera_device *icd, int idx,
 }
 
 static int pxa_camera_set_crop(struct soc_camera_device *icd,
-                               struct v4l2_rect *rect)
+                               struct v4l2_crop *a)
 {
+        struct v4l2_rect *rect = &a->c;
         struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
         struct pxa_camera_dev *pcdev = ici->priv;
+        struct device *control = to_soc_camera_control(icd);
+        struct v4l2_subdev *sd = dev_get_drvdata(control);
         struct soc_camera_sense sense = {
                 .master_clock = pcdev->mclk,
                 .pixel_clock_max = pcdev->ciclk / 4,
@@ -1295,7 +1298,7 @@ static int pxa_camera_set_crop(struct soc_camera_device *icd,
         if (pcdev->platform_flags & PXA_CAMERA_PCLK_EN)
                 icd->sense = &sense;
 
-        ret = icd->ops->set_crop(icd, rect);
+        ret = v4l2_subdev_call(sd, video, s_crop, a);
 
         icd->sense = NULL;
 
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 499d1a235fd7..726cf0e4dc23 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -846,12 +846,16 @@ static bool is_inside(struct v4l2_rect *r1, struct v4l2_rect *r2)
  * 3. if (2) failed, try to request the maximum image
  */
 static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
-                                  struct v4l2_rect *rect)
+                                  struct v4l2_crop *a)
 {
+        struct v4l2_rect *rect = &a->c;
         struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
         struct sh_mobile_ceu_dev *pcdev = ici->priv;
-        struct v4l2_rect cam_rect, target, cam_max;
+        struct v4l2_crop cam_crop;
+        struct v4l2_rect *cam_rect = &cam_crop.c, target, cam_max;
         struct sh_mobile_ceu_cam *cam = icd->host_priv;
+        struct device *control = to_soc_camera_control(icd);
+        struct v4l2_subdev *sd = dev_get_drvdata(control);
         unsigned int hscale = pcdev->cflcr & 0xffff;
         unsigned int vscale = (pcdev->cflcr >> 16) & 0xffff;
         unsigned short width, height;
@@ -859,80 +863,80 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
         int ret;
 
         /* Scale back up into client units */
-        cam_rect.left   = size_src(rect->left, hscale);
-        cam_rect.width  = size_src(rect->width, hscale);
-        cam_rect.top    = size_src(rect->top, vscale);
-        cam_rect.height = size_src(rect->height, vscale);
+        cam_rect->left  = size_src(rect->left, hscale);
+        cam_rect->width = size_src(rect->width, hscale);
+        cam_rect->top   = size_src(rect->top, vscale);
+        cam_rect->height        = size_src(rect->height, vscale);
 
-        target = cam_rect;
+        target = *cam_rect;
 
         capsr = capture_save_reset(pcdev);
         dev_dbg(&icd->dev, "CAPSR 0x%x, CFLCR 0x%x\n", capsr, pcdev->cflcr);
 
         /* First attempt - see if the client can deliver a perfect result */
-        ret = icd->ops->set_crop(icd, &cam_rect);
+        ret = v4l2_subdev_call(sd, video, s_crop, &cam_crop);
         if (!ret && !memcmp(&target, &cam_rect, sizeof(target))) {
                 dev_dbg(&icd->dev, "Camera S_CROP successful for %ux%u@%u:%u\n",
-                        cam_rect.width, cam_rect.height,
-                        cam_rect.left, cam_rect.top);
+                        cam_rect->width, cam_rect->height,
+                        cam_rect->left, cam_rect->top);
                 goto ceu_set_rect;
         }
 
         /* Try to fix cropping, that camera hasn't managed to do */
         dev_dbg(&icd->dev, "Fix camera S_CROP %d for %ux%u@%u:%u"
                 " to %ux%u@%u:%u\n",
-                ret, cam_rect.width, cam_rect.height,
-                cam_rect.left, cam_rect.top,
+                ret, cam_rect->width, cam_rect->height,
+                cam_rect->left, cam_rect->top,
                 target.width, target.height, target.left, target.top);
 
         /*
          * Popular special case - some cameras can only handle fixed sizes like
          * QVGA, VGA,... Take care to avoid infinite loop.
          */
-        width = max(cam_rect.width, 1);
-        height = max(cam_rect.height, 1);
+        width = max(cam_rect->width, 1);
+        height = max(cam_rect->height, 1);
         cam_max.width = size_src(icd->rect_max.width, hscale);
         cam_max.left = size_src(icd->rect_max.left, hscale);
         cam_max.height = size_src(icd->rect_max.height, vscale);
         cam_max.top = size_src(icd->rect_max.top, vscale);
-        while (!ret && (is_smaller(&cam_rect, &target) ||
-                        is_inside(&cam_rect, &target)) &&
+        while (!ret && (is_smaller(cam_rect, &target) ||
+                        is_inside(cam_rect, &target)) &&
                cam_max.width >= width && cam_max.height >= height) {
 
                 width *= 2;
                 height *= 2;
-                cam_rect.width = width;
-                cam_rect.height = height;
+                cam_rect->width = width;
+                cam_rect->height = height;
 
                 /* We do not know what the camera is capable of, play safe */
-                if (cam_rect.left > target.left)
-                        cam_rect.left = cam_max.left;
+                if (cam_rect->left > target.left)
+                        cam_rect->left = cam_max.left;
 
-                if (cam_rect.left + cam_rect.width < target.left + target.width)
-                        cam_rect.width = target.left + target.width -
-                                cam_rect.left;
+                if (cam_rect->left + cam_rect->width < target.left + target.width)
+                        cam_rect->width = target.left + target.width -
+                                cam_rect->left;
 
-                if (cam_rect.top > target.top)
-                        cam_rect.top = cam_max.top;
+                if (cam_rect->top > target.top)
+                        cam_rect->top = cam_max.top;
 
-                if (cam_rect.top + cam_rect.height < target.top + target.height)
-                        cam_rect.height = target.top + target.height -
-                                cam_rect.top;
+                if (cam_rect->top + cam_rect->height < target.top + target.height)
+                        cam_rect->height = target.top + target.height -
+                                cam_rect->top;
 
-                if (cam_rect.width + cam_rect.left >
+                if (cam_rect->width + cam_rect->left >
                     cam_max.width + cam_max.left)
-                        cam_rect.left = max(cam_max.width + cam_max.left -
-                                            cam_rect.width, cam_max.left);
+                        cam_rect->left = max(cam_max.width + cam_max.left -
+                                             cam_rect->width, cam_max.left);
 
-                if (cam_rect.height + cam_rect.top >
+                if (cam_rect->height + cam_rect->top >
                     cam_max.height + cam_max.top)
-                        cam_rect.top = max(cam_max.height + cam_max.top -
-                                           cam_rect.height, cam_max.top);
+                        cam_rect->top = max(cam_max.height + cam_max.top -
+                                            cam_rect->height, cam_max.top);
 
-                ret = icd->ops->set_crop(icd, &cam_rect);
+                ret = v4l2_subdev_call(sd, video, s_crop, &cam_crop);
                 dev_dbg(&icd->dev, "Camera S_CROP %d for %ux%u@%u:%u\n",
-                        ret, cam_rect.width, cam_rect.height,
-                        cam_rect.left, cam_rect.top);
+                        ret, cam_rect->width, cam_rect->height,
+                        cam_rect->left, cam_rect->top);
         }
 
         /*
@@ -941,30 +945,30 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
          */
         if ((ret < 0 && (is_smaller(&icd->rect_current, rect) ||
                          is_inside(&icd->rect_current, rect))) ||
-            is_smaller(&cam_rect, &target) || is_inside(&cam_rect, &target)) {
+            is_smaller(cam_rect, &target) || is_inside(cam_rect, &target)) {
                 /*
                  * The camera failed to configure a suitable cropping,
                  * we cannot use the current rectangle, set to max
                  */
-                cam_rect = cam_max;
-                ret = icd->ops->set_crop(icd, &cam_rect);
+                *cam_rect = cam_max;
+                ret = v4l2_subdev_call(sd, video, s_crop, &cam_crop);
                 dev_dbg(&icd->dev, "Camera S_CROP %d for max %ux%u@%u:%u\n",
-                        ret, cam_rect.width, cam_rect.height,
-                        cam_rect.left, cam_rect.top);
-                if (ret < 0)
+                        ret, cam_rect->width, cam_rect->height,
+                        cam_rect->left, cam_rect->top);
+                if (ret < 0 && ret != -ENOIOCTLCMD)
                         /* All failed, hopefully resume current capture */
                         goto resume_capture;
 
                 /* Finally, adjust the target rectangle */
-                if (target.width > cam_rect.width)
-                        target.width = cam_rect.width;
-                if (target.height > cam_rect.height)
-                        target.height = cam_rect.height;
-                if (target.left + target.width > cam_rect.left + cam_rect.width)
-                        target.left = cam_rect.left + cam_rect.width -
+                if (target.width > cam_rect->width)
+                        target.width = cam_rect->width;
+                if (target.height > cam_rect->height)
+                        target.height = cam_rect->height;
+                if (target.left + target.width > cam_rect->left + cam_rect->width)
+                        target.left = cam_rect->left + cam_rect->width -
                                 target.width;
-                if (target.top + target.height > cam_rect.top + cam_rect.height)
-                        target.top = cam_rect.top + cam_rect.height -
+                if (target.top + target.height > cam_rect->top + cam_rect->height)
+                        target.top = cam_rect->top + cam_rect->height -
                                 target.height;
         }
 
@@ -978,14 +982,14 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
          */
         dev_dbg(&icd->dev,
                 "SH S_CROP from %ux%u@%u:%u to %ux%u@%u:%u, scale to %ux%u@%u:%u\n",
-                cam_rect.width, cam_rect.height, cam_rect.left, cam_rect.top,
+                cam_rect->width, cam_rect->height, cam_rect->left, cam_rect->top,
                 target.width, target.height, target.left, target.top,
                 rect->width, rect->height, rect->left, rect->top);
 
         ret = 0;
 
 ceu_set_rect:
-        cam->camera_rect = cam_rect;
+        cam->camera_rect = *cam_rect;
 
         rect->width     = size_dst(target.width, hscale);
         rect->left      = size_dst(target.left, hscale);
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index 21a8aa586da5..d9ccc2866592 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -797,7 +797,7 @@ static int soc_camera_s_crop(struct file *file, void *fh,
                 rect.top = icd->rect_max.height + icd->rect_max.top -
                         rect.height;
 
-        ret = ici->ops->set_crop(icd, &rect);
+        ret = ici->ops->set_crop(icd, a);
         if (!ret)
                 icd->rect_current = rect;
 
@@ -970,7 +970,7 @@ static int soc_camera_probe(struct device *dev)
 
                 /* FIXME: this is racy, have to use driver-binding notification */
                 control = to_soc_camera_control(icd);
-                if (!control || !control->driver ||
+                if (!control || !control->driver || !dev_get_drvdata(control) ||
                     !try_module_get(control->driver->owner)) {
                         icl->del_device(icl);
                         goto enodrv;
diff --git a/drivers/media/video/soc_camera_platform.c b/drivers/media/video/soc_camera_platform.c
index 9e406c113aa4..aec2cadbd2ee 100644
--- a/drivers/media/video/soc_camera_platform.c
+++ b/drivers/media/video/soc_camera_platform.c
@@ -25,10 +25,15 @@ struct soc_camera_platform_priv {
         struct soc_camera_data_format format;
 };
 
-static struct soc_camera_platform_info *
-soc_camera_platform_get_info(struct soc_camera_device *icd)
+static struct soc_camera_platform_priv *get_priv(struct platform_device *pdev)
 {
-        struct platform_device *pdev = to_platform_device(dev_get_drvdata(&icd->dev));
+        struct v4l2_subdev *subdev = platform_get_drvdata(pdev);
+        return container_of(subdev, struct soc_camera_platform_priv, subdev);
+}
+
+static struct soc_camera_platform_info *get_info(struct soc_camera_device *icd)
+{
+        struct platform_device *pdev = to_platform_device(to_soc_camera_control(icd));
         return pdev->dev.platform_data;
 }
 
@@ -47,16 +52,10 @@ static int soc_camera_platform_set_bus_param(struct soc_camera_device *icd,
 static unsigned long
 soc_camera_platform_query_bus_param(struct soc_camera_device *icd)
 {
-        struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+        struct soc_camera_platform_info *p = get_info(icd);
         return p->bus_param;
 }
 
-static int soc_camera_platform_set_crop(struct soc_camera_device *icd,
-                                        struct v4l2_rect *rect)
-{
-        return 0;
-}
-
 static int soc_camera_platform_try_fmt(struct v4l2_subdev *sd,
                                        struct v4l2_format *f)
 {
@@ -71,7 +70,7 @@ static int soc_camera_platform_try_fmt(struct v4l2_subdev *sd,
 static void soc_camera_platform_video_probe(struct soc_camera_device *icd,
                                             struct platform_device *pdev)
 {
-        struct soc_camera_platform_priv *priv = platform_get_drvdata(pdev);
+        struct soc_camera_platform_priv *priv = get_priv(pdev);
         struct soc_camera_platform_info *p = pdev->dev.platform_data;
 
         priv->format.name = p->format_name;
@@ -96,7 +95,6 @@ static struct v4l2_subdev_ops platform_subdev_ops = {
 };
 
 static struct soc_camera_ops soc_camera_platform_ops = {
-        .set_crop               = soc_camera_platform_set_crop,
         .set_bus_param          = soc_camera_platform_set_bus_param,
         .query_bus_param        = soc_camera_platform_query_bus_param,
 };
@@ -124,7 +122,9 @@ static int soc_camera_platform_probe(struct platform_device *pdev)
 
         icd = to_soc_camera_dev(p->dev);
 
-        platform_set_drvdata(pdev, priv);
+        /* soc-camera convention: control's drvdata points to the subdev */
+        platform_set_drvdata(pdev, &priv->subdev);
+        /* Set the control device reference */
         dev_set_drvdata(&icd->dev, &pdev->dev);
 
         icd->width_min          = 0;
@@ -158,7 +158,7 @@ evdrs:
 
 static int soc_camera_platform_remove(struct platform_device *pdev)
 {
-        struct soc_camera_platform_priv *priv = platform_get_drvdata(pdev);
+        struct soc_camera_platform_priv *priv = get_priv(pdev);
         struct soc_camera_platform_info *p = pdev->dev.platform_data;
         struct soc_camera_device *icd = to_soc_camera_dev(p->dev);
 
diff --git a/drivers/media/video/tw9910.c b/drivers/media/video/tw9910.c
index 735d0bd4bb10..b6b15468b40a 100644
--- a/drivers/media/video/tw9910.c
+++ b/drivers/media/video/tw9910.c
@@ -616,11 +616,12 @@ static int tw9910_s_register(struct v4l2_subdev *sd,
 }
 #endif
 
-static int tw9910_set_crop(struct soc_camera_device *icd,
-                           struct v4l2_rect *rect)
+static int tw9910_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
 {
-        struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+        struct v4l2_rect *rect = &a->c;
+        struct i2c_client *client = sd->priv;
         struct tw9910_priv *priv = to_tw9910(client);
+        struct soc_camera_device *icd = client->dev.platform_data;
         int                 ret  = -EINVAL;
         u8                  val;
 
@@ -716,15 +717,15 @@ tw9910_set_fmt_error:
 
 static int tw9910_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
 {
-        struct i2c_client *client = sd->priv;
-        struct soc_camera_device *icd = client->dev.platform_data;
         struct v4l2_pix_format *pix = &f->fmt.pix;
-        /* See tw9910_set_crop() - no proper cropping support */
-        struct v4l2_rect rect = {
-                .left   = 0,
-                .top    = 0,
-                .width  = pix->width,
-                .height = pix->height,
+        /* See tw9910_s_crop() - no proper cropping support */
+        struct v4l2_crop a = {
+                .c = {
+                        .left   = 0,
+                        .top    = 0,
+                        .width  = pix->width,
+                        .height = pix->height,
+                },
         };
         int i, ret;
 
@@ -738,10 +739,10 @@ static int tw9910_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
         if (i == ARRAY_SIZE(tw9910_color_fmt))
                 return -EINVAL;
 
-        ret = tw9910_set_crop(icd, &rect);
+        ret = tw9910_s_crop(sd, &a);
         if (!ret) {
-                pix->width = rect.width;
-                pix->height = rect.height;
+                pix->width = a.c.width;
+                pix->height = a.c.height;
         }
         return ret;
 }
@@ -821,7 +822,6 @@ static int tw9910_video_probe(struct soc_camera_device *icd,
 }
 
 static struct soc_camera_ops tw9910_ops = {
-        .set_crop               = tw9910_set_crop,
         .set_bus_param          = tw9910_set_bus_param,
         .query_bus_param        = tw9910_query_bus_param,
         .enum_input             = tw9910_enum_input,
@@ -840,6 +840,7 @@ static struct v4l2_subdev_video_ops tw9910_subdev_video_ops = {
         .s_stream       = tw9910_s_stream,
         .s_fmt          = tw9910_s_fmt,
         .try_fmt        = tw9910_try_fmt,
+        .s_crop         = tw9910_s_crop,
 };
 
 static struct v4l2_subdev_ops tw9910_subdev_ops = {