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path: root/drivers/iio/common/hid-sensors
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Diffstat (limited to 'drivers/iio/common/hid-sensors')
-rw-r--r--drivers/iio/common/hid-sensors/hid-sensor-trigger.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
index 0e4b379ada45..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);
@@ -243,7 +250,6 @@ void hid_sensor_remove_trigger(struct hid_sensor_common *attrb)
EXPORT_SYMBOL(hid_sensor_remove_trigger);
static const struct iio_trigger_ops hid_sensor_trigger_ops = {
- .owner = THIS_MODULE,
.set_trigger_state = &hid_sensor_data_rdy_trigger_set_state,
};
@@ -283,7 +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);