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[3/4] media: ov13b10: Enable runtime PM before registering async sub-device

Message ID 20231106083516.763184-4-bingbu.cao@intel.com
State New
Headers show
Series [1/4] media: imx355: Enable runtime PM before registering async sub-device | expand

Commit Message

Cao, Bingbu Nov. 6, 2023, 8:35 a.m. UTC 
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/ov13b10.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/i2c/ov13b10.c b/drivers/media/i2c/ov13b10.c
index dbc642c5995b..f5c6d4a5ae0b 100644
--- a/drivers/media/i2c/ov13b10.c
+++ b/drivers/media/i2c/ov13b10.c
@@ -1536,24 +1536,28 @@  static int ov13b10_probe(struct i2c_client *client)
 		goto error_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor(&ov13b->sd);
-	if (ret < 0)
-		goto error_media_entity;
 
 	/*
 	 * Device is already turned on by i2c-core with ACPI domain PM.
 	 * Enable runtime PM and turn off the device.
 	 */
-
 	/* Set the device's state to active if it's in D0 state. */
 	if (full_power)
 		pm_runtime_set_active(&client->dev);
 	pm_runtime_enable(&client->dev);
+
+	ret = v4l2_async_register_subdev_sensor(&ov13b->sd);
+	if (ret < 0)
+		goto error_media_entity_runtime_pm;
+
 	pm_runtime_idle(&client->dev);
 
 	return 0;
 
-error_media_entity:
+error_media_entity_runtime_pm:
+	pm_runtime_disable(&client->dev);
+	if (full_power)
+		pm_runtime_set_suspended(&client->dev);
 	media_entity_cleanup(&ov13b->sd.entity);
 
 error_handler_free: