diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-02-15 05:27:03 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-03-11 11:59:50 +0100 |
| commit | 3c1dbc71c6465687af2211d60673d4b52c082fd0 (patch) | |
| tree | 5e99ca2fd1beb614513ab2a1db06d3524fe0399a /drivers/staging/media/imx | |
| parent | c6f02291d114b76b081930ba0e0bacd655ad4128 (diff) | |
media: imx: imx7-media-csi: Don't lock access to is_csi2
The is_csi2 field can't be accessed concurrently by
imx7_csi_pad_link_validate() and imx7_csi_configure(), as the latter is
called from imx7_csi_s_stream(), which is called after link validation.
Drop the lock.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/staging/media/imx')
| -rw-r--r-- | drivers/staging/media/imx/imx7-media-csi.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c index 2a4b69cc0178..dc25b593eaeb 100644 --- a/drivers/staging/media/imx/imx7-media-csi.c +++ b/drivers/staging/media/imx/imx7-media-csi.c @@ -1001,7 +1001,6 @@ static int imx7_csi_pad_link_validate(struct v4l2_subdev *sd, struct imx_media_video_dev *vdev = csi->vdev; const struct v4l2_pix_format *out_pix = &vdev->fmt; struct media_pad *pad; - bool is_csi2; int ret; if (!csi->src_sd) @@ -1018,7 +1017,7 @@ static int imx7_csi_pad_link_validate(struct v4l2_subdev *sd, switch (csi->src_sd->entity.function) { case MEDIA_ENT_F_VID_IF_BRIDGE: /* The input is the CSI-2 receiver. */ - is_csi2 = true; + csi->is_csi2 = true; break; case MEDIA_ENT_F_VID_MUX: @@ -1027,7 +1026,7 @@ static int imx7_csi_pad_link_validate(struct v4l2_subdev *sd, if (!pad) return -ENODEV; - is_csi2 = pad->entity->function == MEDIA_ENT_F_VID_IF_BRIDGE; + csi->is_csi2 = pad->entity->function == MEDIA_ENT_F_VID_IF_BRIDGE; break; default: @@ -1035,14 +1034,10 @@ static int imx7_csi_pad_link_validate(struct v4l2_subdev *sd, * The input is an external entity, it must use the parallel * bus. */ - is_csi2 = false; + csi->is_csi2 = false; break; } - mutex_lock(&csi->lock); - csi->is_csi2 = is_csi2; - mutex_unlock(&csi->lock); - /* Validate the sink link, ensure the pixel format is supported. */ switch (out_pix->pixelformat) { case V4L2_PIX_FMT_UYVY: |