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Subject[RFC PATCH v4 09/12] media: imx219: Introduce the set_routing operation
Date
As we want to use multiplexed streams API, we need to be able to set the
pad routing. Introduce the set_routing operation.

As this operation is required for a multiplexed able sensor, add the
V4L2_SUBDEV_FL_MULTIPLEXED flag.

Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
---
drivers/media/i2c/imx219.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index b68d35046725..7d29cf2b06f8 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -817,6 +817,25 @@ static int _imx219_set_routing(struct v4l2_subdev *sd,
return 0;
}

+static int imx219_set_routing(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ enum v4l2_subdev_format_whence which,
+ struct v4l2_subdev_krouting *routing)
+{
+ int ret;
+
+ if (routing->num_routes == 0 || routing->num_routes > 2)
+ return -EINVAL;
+
+ v4l2_subdev_lock_state(state);
+
+ ret = _imx219_set_routing(sd, state);
+
+ v4l2_subdev_unlock_state(state);
+
+ return ret;
+}
+
static int imx219_init_cfg(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state)
{
@@ -1289,6 +1308,7 @@ static const struct v4l2_subdev_pad_ops imx219_pad_ops = {
.get_fmt = imx219_get_pad_format,
.set_fmt = imx219_set_pad_format,
.get_selection = imx219_get_selection,
+ .set_routing = imx219_set_routing,
.enum_frame_size = imx219_enum_frame_size,
};

@@ -1547,7 +1567,8 @@ static int imx219_probe(struct i2c_client *client)

/* Initialize subdev */
imx219->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
- V4L2_SUBDEV_FL_HAS_EVENTS;
+ V4L2_SUBDEV_FL_HAS_EVENTS |
+ V4L2_SUBDEV_FL_MULTIPLEXED;
imx219->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;

/* Initialize source pad */
--
2.32.0
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