Add a subdevice video operation that allows to query the number
of data lanes a MIPI CSI-2 TX is actively transmitting on.
Suggested-by: Hans Verkuil <hverkuil@xxxxxxxxx>
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
---
New in v4.
---
include/media/v4l2-subdev.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 71f1f2f0da53..bb71eedc38f6 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -411,6 +411,8 @@ struct v4l2_mbus_frame_desc {
* @s_rx_buffer: set a host allocated memory buffer for the subdev. The subdev
* can adjust @size to a lower value and must not write more data to the
* buffer starting at @data than the original value of @size.
+ *
+ * @g_csi_active_lanes: Get number of currently active MIPI CSI-2 data lanes.
*/
struct v4l2_subdev_video_ops {
int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config);
@@ -441,6 +443,7 @@ struct v4l2_subdev_video_ops {
const struct v4l2_mbus_config *cfg);
int (*s_rx_buffer)(struct v4l2_subdev *sd, void *buf,
unsigned int *size);
+ int (*g_csi_active_lanes)(struct v4l2_subdev *sd, u32 *lanes);
};
/**
--
2.20.1
