[media] v4l: Add support for DV timings ioctls on subdev nodes

Validate the pad field in the core code whenever specified.

Signed-off-by: Laurent Pinchart <[email protected]>
Reviewed-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

1 files changed, 27 insertions, 0 deletions

diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 0ed4c5be1b32..db126dbc19c9 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -366,6 +366,33 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 
 	case VIDIOC_S_EDID:
 		return v4l2_subdev_call(sd, pad, set_edid, arg);
+
+	case VIDIOC_SUBDEV_DV_TIMINGS_CAP: {
+		struct v4l2_dv_timings_cap *cap = arg;
+
+		if (cap->pad >= sd->entity.num_pads)
+			return -EINVAL;
+
+		return v4l2_subdev_call(sd, pad, dv_timings_cap, cap);
+	}
+
+	case VIDIOC_SUBDEV_ENUM_DV_TIMINGS: {
+		struct v4l2_enum_dv_timings *dvt = arg;
+
+		if (dvt->pad >= sd->entity.num_pads)
+			return -EINVAL;
+
+		return v4l2_subdev_call(sd, pad, enum_dv_timings, dvt);
+	}
+
+	case VIDIOC_SUBDEV_QUERY_DV_TIMINGS:
+		return v4l2_subdev_call(sd, video, query_dv_timings, arg);
+
+	case VIDIOC_SUBDEV_G_DV_TIMINGS:
+		return v4l2_subdev_call(sd, video, g_dv_timings, arg);
+
+	case VIDIOC_SUBDEV_S_DV_TIMINGS:
+		return v4l2_subdev_call(sd, video, s_dv_timings, arg);
 #endif
 	default:
 		return v4l2_subdev_call(sd, core, ioctl, cmd, arg);