media: Revert "media: staging/imx: add media device to capture register"

The imx6-specific subdevs that register a capture device will no
longer hold a reference to the media device, so this commit must be
reverted.

This reverts commit 16204b8a.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/staging/media/imx/imx-ic-prpencvf.c

@@ -1266,7 +1266,7 @@ static int prp_registered(struct v4l2_subdev *sd)
 	if (ret)
 		return ret;
 
-	ret = imx_media_capture_device_register(priv->md, priv->vdev);
+	ret = imx_media_capture_device_register(priv->vdev);
 	if (ret)
 		return ret;
 

drivers/staging/media/imx/imx-media-capture.c

@@ -700,8 +700,7 @@ void imx_media_capture_device_error(struct imx_media_video_dev *vdev)
 }
 EXPORT_SYMBOL_GPL(imx_media_capture_device_error);
 
-int imx_media_capture_device_register(struct imx_media_dev *md,
-				      struct imx_media_video_dev *vdev)
+int imx_media_capture_device_register(struct imx_media_video_dev *vdev)
 {
 	struct capture_priv *priv = to_capture_priv(vdev);
 	struct v4l2_subdev *sd = priv->src_sd;
@@ -710,7 +709,8 @@ int imx_media_capture_device_register(struct imx_media_dev *md,
 	struct v4l2_subdev_format fmt_src;
 	int ret;
 
-	priv->md = md;
+	/* get media device */
+	priv->md = dev_get_drvdata(sd->v4l2_dev->dev);
 
 	vfd->v4l2_dev = sd->v4l2_dev;
 

drivers/staging/media/imx/imx-media-csi.c

@@ -1812,7 +1812,7 @@ static int csi_registered(struct v4l2_subdev *sd)
 	if (ret)
 		goto free_fim;
 
-	ret = imx_media_capture_device_register(priv->md, priv->vdev);
+	ret = imx_media_capture_device_register(priv->vdev);
 	if (ret)
 		goto free_fim;
 

drivers/staging/media/imx/imx-media.h

@@ -268,8 +268,7 @@ int imx_media_of_add_csi(struct imx_media_dev *imxmd,
 struct imx_media_video_dev *
 imx_media_capture_device_init(struct v4l2_subdev *src_sd, int pad);
 void imx_media_capture_device_remove(struct imx_media_video_dev *vdev);
-int imx_media_capture_device_register(struct imx_media_dev *md,
-				      struct imx_media_video_dev *vdev);
+int imx_media_capture_device_register(struct imx_media_video_dev *vdev);
 void imx_media_capture_device_unregister(struct imx_media_video_dev *vdev);
 struct imx_media_buffer *
 imx_media_capture_device_next_buf(struct imx_media_video_dev *vdev);

drivers/staging/media/imx/imx7-media-csi.c

@@ -1126,7 +1126,7 @@ static int imx7_csi_registered(struct v4l2_subdev *sd)
 	if (ret < 0)
 		return ret;
 
-	ret = imx_media_capture_device_register(csi->imxmd, csi->vdev);
+	ret = imx_media_capture_device_register(csi->vdev);
 	if (ret < 0)
 		return ret;