From: Hans Verkuil <hans.verk...@cisco.com>

Add v4l2-async support for this driver.

Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
 drivers/media/i2c/ov7670.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c
index 25f46c7..26ad1a2 100644
--- a/drivers/media/i2c/ov7670.c
+++ b/drivers/media/i2c/ov7670.c
@@ -1662,6 +1662,14 @@ static int ov7670_probe(struct i2c_client *client,
        v4l2_ctrl_cluster(2, &info->saturation);
        v4l2_ctrl_handler_setup(&info->hdl);
 
+       ret = v4l2_async_register_subdev(&info->sd);
+       if (ret < 0) {
+#if defined(CONFIG_MEDIA_CONTROLLER)
+               media_entity_cleanup(&info->sd.entity);
+#endif
+               return ret;
+       }
+
        return 0;
 }
 
-- 
2.8.1

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