Add suspend/resume handler in order to stop firmware polling
during s2idle. This was just waking-up the system without a real
benefit.
Signed-off-by: Stefan Wahren <wahrenst@xxxxxxx>
---
drivers/hwmon/raspberrypi-hwmon.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/hwmon/raspberrypi-hwmon.c b/drivers/hwmon/raspberrypi-hwmon.c
index 10ef1e1f9458..a2938881ccd2 100644
--- a/drivers/hwmon/raspberrypi-hwmon.c
+++ b/drivers/hwmon/raspberrypi-hwmon.c
@@ -128,10 +128,32 @@ static int rpi_hwmon_probe(struct platform_device *pdev)
return 0;
}
+static int rpi_hwmon_suspend(struct device *dev)
+{
+ struct rpi_hwmon_data *data = dev_get_drvdata(dev);
+
+ cancel_delayed_work_sync(&data->get_values_poll_work);
+
+ return 0;
+}
+
+static int rpi_hwmon_resume(struct device *dev)
+{
+ struct rpi_hwmon_data *data = dev_get_drvdata(dev);
+
+ get_values_poll(&data->get_values_poll_work.work);
+
+ return 0;
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(rpi_hwmon_pm_ops, rpi_hwmon_suspend,
+ rpi_hwmon_resume);
+
static struct platform_driver rpi_hwmon_driver = {
.probe = rpi_hwmon_probe,
.driver = {
.name = "raspberrypi-hwmon",
+ .pm = pm_ptr(&rpi_hwmon_pm_ops),
},
};
module_platform_driver(rpi_hwmon_driver);
--
2.34.1
