diff mbox series

[v12,10/30] media: add V4L2_SUBDEV_FL_STREAMS

Message ID 20220727103639.581567-11-tomi.valkeinen@ideasonboard.com
State Superseded
Headers show
Series v4l: routing and streams support | expand

Commit Message

Tomi Valkeinen July 27, 2022, 10:36 a.m. UTC 
Add subdev flag V4L2_SUBDEV_FL_STREAMS. It is used to indicate that the
subdev supports the new API with multiplexed streams (routing, stream
configs).

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
 include/media/v4l2-subdev.h | 11 +++++++++++
 1 file changed, 11 insertions(+)
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Patch

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index b661e1817470..56735dfbb6b5 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -875,6 +875,17 @@  struct v4l2_subdev_internal_ops {
  * should set this flag.
  */
 #define V4L2_SUBDEV_FL_HAS_EVENTS		(1U << 3)
+/*
+ * Set this flag if this subdev supports multiplexed streams. This means
+ * that the driver supports routing and handles the stream parameter in its
+ * v4l2_subdev_pad_ops handlers. More specifically, this means:
+ *
+ * - Centrally managed subdev active state is enabled
+ * - Legacy pad config is _not_ supported (state->pads is NULL)
+ * - Routing ioctls are available
+ * - Multiple streams per pad are supported
+ */
+#define V4L2_SUBDEV_FL_STREAMS			(1U << 4)
 
 struct regulator_bulk_data;