[PATCH 2/4] media: ov01a10: Enable runtime PM before registering async sub-device

[bingbu.cao@intel.com]

From: Bingbu Cao <bingbu.cao@intel.com>

As the sensor device maybe accessible right after its async sub-device is
registered, such as ipu-bridge will try to power up sensor by sensor's client
device's runtime PM from the async notifier callback, if runtime PM is not
enabled, it will fail.

So runtime PM should be ready before its async sub-device is registered
and accessible by others.

Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
---
 drivers/media/i2c/ov01a10.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/media/i2c/ov01a10.c b/drivers/media/i2c/ov01a10.c
index 2b9e1b3a3bf4..07691c8ac842 100644
--- a/drivers/media/i2c/ov01a10.c
+++ b/drivers/media/i2c/ov01a10.c
@@ -953,17 +953,20 @@ static int ov01a10_probe(struct i2c_client *client)
 		goto err_media_entity_cleanup;
 	}
 
+	pm_runtime_enable(dev);
 	ret = v4l2_async_register_subdev_sensor(&ov01a10->sd);
 	if (ret < 0) {
 		dev_err(dev, "Failed to register subdev: %d\n", ret);
-		goto err_media_entity_cleanup;
+		goto err_pm_disable;
 	}
 
-	pm_runtime_enable(dev);
 	pm_runtime_idle(dev);
 
 	return 0;
 
+err_pm_disable:
+	pm_runtime_disable(dev);
+
 err_media_entity_cleanup:
 	media_entity_cleanup(&ov01a10->sd.entity);
 
-- 
2.42.0