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media: i2c: max96714: add HAS_EVENTS support

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Controls can be exposed to userspace via a v4l-subdevX device, and
userspace has to be able to subscribe to control events so that it is
notified when the control changes value.
Add missing HAS_EVENTS support: flag and .(un)subscribe_event().

Signed-off-by: Tommaso Merciai <tomm.merciai@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Tommaso Merciai
2024-09-12 16:06:48 +02:00
committed by Mauro Carvalho Chehab
parent bcd4f091cf
commit d95fdc0408
1 changed files with 5 additions and 1 deletions
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6
drivers/media/i2c/max96714.c
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@@ -17,6 +17,7 @@
#include <media/v4l2-cci.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-event.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-subdev.h>
@@ -488,6 +489,8 @@ static int max96714_log_status(struct v4l2_subdev *sd)
static const struct v4l2_subdev_core_ops max96714_subdev_core_ops = {
.log_status = max96714_log_status,
.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
};
static const struct v4l2_subdev_video_ops max96714_video_ops = {
@@ -602,7 +605,8 @@ static int max96714_create_subdev(struct max96714_priv *priv)
goto err_free_ctrl;
}
priv->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_STREAMS;
priv->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
V4L2_SUBDEV_FL_HAS_EVENTS | V4L2_SUBDEV_FL_STREAMS;
priv->sd.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
priv->sd.entity.ops = &max96714_entity_ops;