From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Fri, 17 Jul 2015 14:02:53 +0000 (-0300)
Subject: [media] tc358743: register v4l2 asynchronous subdevice
X-Git-Tag: firefly_0821_release~176^2~795^2~333
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4c5211a100399c3823563193dd881dcb3b7d24fc;p=firefly-linux-kernel-4.4.55.git

[media] tc358743: register v4l2 asynchronous subdevice

Add support for registering the sensor subdevice using the v4l2-async API.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---

diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index 4e8811c3e771..7278435048ed 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -1710,6 +1710,16 @@ static int tc358743_probe(struct i2c_client *client,
 		goto err_hdl;
 	}
 
+	state->pad.flags = MEDIA_PAD_FL_SOURCE;
+	err = media_entity_init(&sd->entity, 1, &state->pad, 0);
+	if (err < 0)
+		goto err_hdl;
+
+	sd->dev = &client->dev;
+	err = v4l2_async_register_subdev(sd);
+	if (err < 0)
+		goto err_hdl;
+
 	mutex_init(&state->confctl_mutex);
 
 	INIT_DELAYED_WORK(&state->delayed_work_enable_hotplug,
@@ -1740,6 +1750,7 @@ err_work_queues:
 	destroy_workqueue(state->work_queues);
 	mutex_destroy(&state->confctl_mutex);
 err_hdl:
+	media_entity_cleanup(&sd->entity);
 	v4l2_ctrl_handler_free(&state->hdl);
 	return err;
 }
@@ -1751,8 +1762,10 @@ static int tc358743_remove(struct i2c_client *client)
 
 	cancel_delayed_work(&state->delayed_work_enable_hotplug);
 	destroy_workqueue(state->work_queues);
+	v4l2_async_unregister_subdev(sd);
 	v4l2_device_unregister_subdev(sd);
 	mutex_destroy(&state->confctl_mutex);
+	media_entity_cleanup(&sd->entity);
 	v4l2_ctrl_handler_free(&state->hdl);
 
 	return 0;