diff options
| -rw-r--r-- | drivers/iio/common/hid-sensors/hid-sensor-trigger.c | 12 | ||||
| -rw-r--r-- | include/linux/hid-sensor-hub.h | 1 |
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c index 55dfd6288d18..cfb6588565ba 100644 --- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c +++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c @@ -179,6 +179,10 @@ int hid_sensor_power_state(struct hid_sensor_common *st, bool state) int ret; atomic_set(&st->user_requested_state, state); + + if (atomic_add_unless(&st->runtime_pm_enable, 1, 1)) + pm_runtime_enable(&st->pdev->dev); + if (state) ret = pm_runtime_get_sync(&st->pdev->dev); else { @@ -221,7 +225,8 @@ static void hid_sensor_set_power_work(struct work_struct *work) if (attrb->latency_ms > 0) hid_sensor_set_report_latency(attrb, attrb->latency_ms); - _hid_sensor_power_state(attrb, true); + if (atomic_read(&attrb->user_requested_state)) + _hid_sensor_power_state(attrb, true); } static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig, @@ -232,7 +237,9 @@ static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig, void hid_sensor_remove_trigger(struct hid_sensor_common *attrb) { - pm_runtime_disable(&attrb->pdev->dev); + if (atomic_read(&attrb->runtime_pm_enable)) + pm_runtime_disable(&attrb->pdev->dev); + pm_runtime_set_suspended(&attrb->pdev->dev); pm_runtime_put_noidle(&attrb->pdev->dev); @@ -282,7 +289,6 @@ int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name, INIT_WORK(&attrb->work, hid_sensor_set_power_work); pm_suspend_ignore_children(&attrb->pdev->dev, true); - pm_runtime_enable(&attrb->pdev->dev); /* Default to 3 seconds, but can be changed from sysfs */ pm_runtime_set_autosuspend_delay(&attrb->pdev->dev, 3000); diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h index fc7aae64dcde..331dc377c275 100644 --- a/include/linux/hid-sensor-hub.h +++ b/include/linux/hid-sensor-hub.h @@ -231,6 +231,7 @@ struct hid_sensor_common { unsigned usage_id; atomic_t data_ready; atomic_t user_requested_state; + atomic_t runtime_pm_enable; int poll_interval; int raw_hystersis; int latency_ms; |