staging: media: imx: Drop unused helper functions

The imx_media_find_subdev_by_fwnode(),
imx_media_find_subdev_by_devname(), imx_media_pipeline_csi2_channel()
and imx_media_pipeline_video_device() helper functions are not used.
Drop them.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/staging/media/imx/imx-media-utils.c b/drivers/staging/media/imx/imx-media-utils.c
index 411e907..ed11750 100644 (file)
--- a/drivers/staging/media/imx/imx-media-utils.c
+++ b/drivers/staging/media/imx/imx-media-utils.c
@@ -626,36 +626,6 @@ void imx_media_grp_id_to_sd_name(char *sd_name, int sz, u32 grp_id, int ipu_id)
 }
 EXPORT_SYMBOL_GPL(imx_media_grp_id_to_sd_name);
 
-struct v4l2_subdev *
-imx_media_find_subdev_by_fwnode(struct imx_media_dev *imxmd,
-                               struct fwnode_handle *fwnode)
-{
-       struct v4l2_subdev *sd;
-
-       list_for_each_entry(sd, &imxmd->v4l2_dev.subdevs, list) {
-               if (sd->fwnode == fwnode)
-                       return sd;
-       }
-
-       return NULL;
-}
-EXPORT_SYMBOL_GPL(imx_media_find_subdev_by_fwnode);
-
-struct v4l2_subdev *
-imx_media_find_subdev_by_devname(struct imx_media_dev *imxmd,
-                                const char *devname)
-{
-       struct v4l2_subdev *sd;
-
-       list_for_each_entry(sd, &imxmd->v4l2_dev.subdevs, list) {
-               if (!strcmp(devname, dev_name(sd->dev)))
-                       return sd;
-       }
-
-       return NULL;
-}
-EXPORT_SYMBOL_GPL(imx_media_find_subdev_by_devname);
-
 /*
  * Adds a video device to the master video device list. This is called
  * when a video device is registered.
@@ -757,25 +727,6 @@ find_pipeline_entity(struct media_entity *start, u32 grp_id,
 }
 
 /*
- * Find the upstream mipi-csi2 virtual channel reached from the given
- * start entity in the current pipeline.
- * Must be called with mdev->graph_mutex held.
- */
-int imx_media_pipeline_csi2_channel(struct media_entity *start_entity)
-{
-       struct media_pad *pad;
-       int ret = -EPIPE;
-
-       pad = imx_media_pipeline_pad(start_entity, IMX_MEDIA_GRP_ID_CSI2,
-                                    0, true);
-       if (pad)
-               ret = pad->index - 1;
-
-       return ret;
-}
-EXPORT_SYMBOL_GPL(imx_media_pipeline_csi2_channel);
-
-/*
  * Find a subdev reached upstream from the given start entity in
  * the current pipeline.
  * Must be called with mdev->graph_mutex held.
@@ -795,25 +746,6 @@ imx_media_pipeline_subdev(struct media_entity *start_entity, u32 grp_id,
 EXPORT_SYMBOL_GPL(imx_media_pipeline_subdev);
 
 /*
- * Find a subdev reached upstream from the given start entity in
- * the current pipeline.
- * Must be called with mdev->graph_mutex held.
- */
-struct video_device *
-imx_media_pipeline_video_device(struct media_entity *start_entity,
-                               enum v4l2_buf_type buftype, bool upstream)
-{
-       struct media_entity *me;
-
-       me = find_pipeline_entity(start_entity, 0, buftype, upstream);
-       if (!me)
-               return ERR_PTR(-ENODEV);
-
-       return media_entity_to_video_device(me);
-}
-EXPORT_SYMBOL_GPL(imx_media_pipeline_video_device);
-
-/*
  * Turn current pipeline streaming on/off starting from entity.
  */
 int imx_media_pipeline_set_stream(struct imx_media_dev *imxmd,

diff --git a/drivers/staging/media/imx/imx-media.h b/drivers/staging/media/imx/imx-media.h
index 8445286..2bc6230 100644 (file)
--- a/drivers/staging/media/imx/imx-media.h
+++ b/drivers/staging/media/imx/imx-media.h
@@ -201,24 +201,14 @@ int imx_media_mbus_fmt_to_pix_fmt(struct v4l2_pix_format *pix,
                                  const struct imx_media_pixfmt *cc);
 void imx_media_grp_id_to_sd_name(char *sd_name, int sz,
                                 u32 grp_id, int ipu_id);
-struct v4l2_subdev *
-imx_media_find_subdev_by_fwnode(struct imx_media_dev *imxmd,
-                               struct fwnode_handle *fwnode);
-struct v4l2_subdev *
-imx_media_find_subdev_by_devname(struct imx_media_dev *imxmd,
-                                const char *devname);
 void imx_media_add_video_device(struct imx_media_dev *imxmd,
                                struct imx_media_video_dev *vdev);
-int imx_media_pipeline_csi2_channel(struct media_entity *start_entity);
 struct media_pad *
 imx_media_pipeline_pad(struct media_entity *start_entity, u32 grp_id,
                       enum v4l2_buf_type buftype, bool upstream);
 struct v4l2_subdev *
 imx_media_pipeline_subdev(struct media_entity *start_entity, u32 grp_id,
                          bool upstream);
-struct video_device *
-imx_media_pipeline_video_device(struct media_entity *start_entity,
-                               enum v4l2_buf_type buftype, bool upstream);
 
 struct imx_media_dma_buf {
        void          *virt;