From fa5b7945aefdbcd4419f0b8872ce67866d8071e3 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 7 Mar 2014 13:14:32 -0300
Subject: [media] adv7180: Add support for async device registration

Add support for async device registration to the adv7180 driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index c750aae..623cec5 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -597,8 +597,16 @@ static int adv7180_probe(struct i2c_client *client,
 	ret = init_device(client, state);
 	if (ret)
 		goto err_free_ctrl;
+
+	ret = v4l2_async_register_subdev(sd);
+	if (ret)
+		goto err_free_irq;
+
 	return 0;
 
+err_free_irq:
+	if (state->irq > 0)
+		free_irq(client->irq, state);
 err_free_ctrl:
 	adv7180_exit_controls(state);
 err_unreg_subdev:
@@ -612,6 +620,8 @@ static int adv7180_remove(struct i2c_client *client)
 	struct v4l2_subdev *sd = i2c_get_clientdata(client);
 	struct adv7180_state *state = to_state(sd);
 
+	v4l2_async_unregister_subdev(sd);
+
 	if (state->irq > 0)
 		free_irq(client->irq, state);
 
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