From: Tommaso Merciai <tomm.merciai@gmail.com>
Date: Thu, 12 Sep 2024 14:06:49 +0000 (+0200)
Subject: media: i2c: max96717: add HAS_EVENTS support
X-Git-Tag: v6.13-rc1~149^2~159
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=0d88a37edf54eede777befd0dc5cdd835d0b2b27;p=linux-block.git

media: i2c: max96717: add HAS_EVENTS support

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>
---

diff --git a/drivers/media/i2c/max96717.c b/drivers/media/i2c/max96717.c
index 4e85b8eb1e77..755e27271b1b 100644
--- a/drivers/media/i2c/max96717.c
+++ b/drivers/media/i2c/max96717.c
@@ -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>
 
@@ -576,6 +577,8 @@ static const struct v4l2_subdev_pad_ops max96717_pad_ops = {
 
 static const struct v4l2_subdev_core_ops max96717_subdev_core_ops = {
 	.log_status = max96717_log_status,
+	.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
 };
 
 static const struct v4l2_subdev_internal_ops max96717_internal_ops = {
@@ -689,7 +692,8 @@ static int max96717_subdev_init(struct max96717_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 = &max96717_entity_ops;