When the vcnl4000 device registers the iio_device, the iio_device creates basic sysfs power/attribute nodes, but PM runtime is only enabled for the vcnl4000 device and not for the child iio_device. A result of this is that the iio_device sysfs power attributes is marked as 'unsupported' and can not be used for control or monitoring of the vcnl4000 device. To fix this the iio_device should be incorporated with the vcnl4000 device by enabling runtime PM for it. Signed-off-by: Mårten Lindahl <marten.lindahl@xxxxxxxx> --- drivers/iio/light/vcnl4000.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c index 3db4e26731bb..a904c7c99456 100644 --- a/drivers/iio/light/vcnl4000.c +++ b/drivers/iio/light/vcnl4000.c @@ -1077,6 +1077,7 @@ static int vcnl4000_probe(struct i2c_client *client, goto fail_poweroff; pm_runtime_enable(&client->dev); + pm_runtime_sync_parent_enable(&indio_dev->dev); pm_runtime_set_autosuspend_delay(&client->dev, VCNL4000_SLEEP_DELAY_MS); pm_runtime_use_autosuspend(&client->dev); -- 2.30.2
