6.1-stable review patch. If anyone has any objections, please let me know.
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From: Bingbu Cao bingbu.cao@intel.com
commit efa5fe19c0a9199f49e36e1f5242ed5c88da617d upstream.
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.
Fixes: df0b5c4a7ddd ("media: add imx355 camera sensor driver") Cc: stable@vger.kernel.org Signed-off-by: Bingbu Cao bingbu.cao@intel.com Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/media/i2c/imx355.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)
--- a/drivers/media/i2c/imx355.c +++ b/drivers/media/i2c/imx355.c @@ -1784,10 +1784,6 @@ static int imx355_probe(struct i2c_clien goto error_handler_free; }
- ret = v4l2_async_register_subdev_sensor(&imx355->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. @@ -1796,9 +1792,15 @@ static int imx355_probe(struct i2c_clien pm_runtime_enable(&client->dev); pm_runtime_idle(&client->dev);
+ ret = v4l2_async_register_subdev_sensor(&imx355->sd); + if (ret < 0) + goto error_media_entity_runtime_pm; + return 0;
-error_media_entity: +error_media_entity_runtime_pm: + pm_runtime_disable(&client->dev); + pm_runtime_set_suspended(&client->dev); media_entity_cleanup(&imx355->sd.entity);
error_handler_free: