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Subject: media: ov2740: Enable runtime PM before registering the async subdev
Author: Sakari Ailus <sakari.ai...@linux.intel.com>
Date: Fri Sep 8 11:52:12 2023 +0300
Enable runtime PM before registering the async subdev as the driver UAPI
may become accessible immediately after the registration. Runtime PM needs
to be enabled by that time.
Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
drivers/media/i2c/ov2740.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
---
diff --git a/drivers/media/i2c/ov2740.c b/drivers/media/i2c/ov2740.c
index 3a9700fbbe8c..6d5fb2789dc6 100644
--- a/drivers/media/i2c/ov2740.c
+++ b/drivers/media/i2c/ov2740.c
@@ -1130,6 +1130,12 @@ static int ov2740_probe(struct i2c_client *client)
goto probe_error_v4l2_ctrl_handler_free;
}
+ /* 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);
+ pm_runtime_idle(&client->dev);
+
ret = v4l2_async_register_subdev_sensor(&ov2740->sd);
if (ret < 0) {
dev_err_probe(dev, ret, "failed to register V4L2 subdev\n");
@@ -1140,16 +1146,12 @@ static int ov2740_probe(struct i2c_client *client)
if (ret)
dev_warn(&client->dev, "register nvmem failed, ret %d\n", ret);
- /* 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);
- pm_runtime_idle(&client->dev);
-
return 0;
probe_error_media_entity_cleanup:
media_entity_cleanup(&ov2740->sd.entity);
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
probe_error_v4l2_ctrl_handler_free:
v4l2_ctrl_handler_free(ov2740->sd.ctrl_handler);
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