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path: root/drivers/hwmon/acpi_power_meter.c
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Diffstat (limited to 'drivers/hwmon/acpi_power_meter.c')
-rw-r--r--drivers/hwmon/acpi_power_meter.c25
1 files changed, 16 insertions, 9 deletions
diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index 34ad5a27a7e9..23ab3c496b05 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -101,7 +101,7 @@ struct acpi_power_meter_resource {
unsigned long sensors_last_updated;
struct sensor_device_attribute sensors[NUM_SENSORS];
int num_sensors;
- int trip[2];
+ s64 trip[2];
int num_domain_devices;
struct acpi_device **domain_devices;
struct kobject *holders_dir;
@@ -237,7 +237,7 @@ static ssize_t set_cap(struct device *dev, struct device_attribute *devattr,
if (res)
return res;
- temp /= 1000;
+ temp = DIV_ROUND_CLOSEST(temp, 1000);
if (temp > resource->caps.max_cap || temp < resource->caps.min_cap)
return -EINVAL;
arg0.integer.value = temp;
@@ -307,9 +307,7 @@ static ssize_t set_trip(struct device *dev, struct device_attribute *devattr,
if (res)
return res;
- temp /= 1000;
- if (temp < 0)
- return -EINVAL;
+ temp = DIV_ROUND_CLOSEST(temp, 1000);
mutex_lock(&resource->lock);
resource->trip[attr->index - 7] = temp;
@@ -929,20 +927,29 @@ static int acpi_power_meter_remove(struct acpi_device *device, int type)
return 0;
}
-static int acpi_power_meter_resume(struct acpi_device *device)
+#ifdef CONFIG_PM_SLEEP
+
+static int acpi_power_meter_resume(struct device *dev)
{
struct acpi_power_meter_resource *resource;
- if (!device || !acpi_driver_data(device))
+ if (!dev)
+ return -EINVAL;
+
+ resource = acpi_driver_data(to_acpi_device(dev));
+ if (!resource)
return -EINVAL;
- resource = acpi_driver_data(device);
free_capabilities(resource);
read_capabilities(resource);
return 0;
}
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(acpi_power_meter_pm, NULL, acpi_power_meter_resume);
+
static struct acpi_driver acpi_power_meter_driver = {
.name = "power_meter",
.class = ACPI_POWER_METER_CLASS,
@@ -950,9 +957,9 @@ static struct acpi_driver acpi_power_meter_driver = {
.ops = {
.add = acpi_power_meter_add,
.remove = acpi_power_meter_remove,
- .resume = acpi_power_meter_resume,
.notify = acpi_power_meter_notify,
},
+ .drv.pm = &acpi_power_meter_pm,
};
/* Module init/exit routines */