struct i2c_hid *ihid = i2c_get_clientdata(client);
int ret = 0;
- mutex_lock(&i2c_hid_open_mut);
- if (!hid->open++) {
- ret = pm_runtime_get_sync(&client->dev);
- if (ret < 0) {
- hid->open--;
- goto done;
- }
- set_bit(I2C_HID_STARTED, &ihid->flags);
- }
-done:
- mutex_unlock(&i2c_hid_open_mut);
- return ret < 0 ? ret : 0;
+ ret = pm_runtime_get_sync(&client->dev);
+ if (ret < 0)
+ return ret;
+
+ set_bit(I2C_HID_STARTED, &ihid->flags);
+ return 0;
}
static void i2c_hid_close(struct hid_device *hid)
struct i2c_client *client = hid->driver_data;
struct i2c_hid *ihid = i2c_get_clientdata(client);
- /* protecting hid->open to make sure we don't restart
- * data acquistion due to a resumption we no longer
- * care about
- */
- mutex_lock(&i2c_hid_open_mut);
- if (!--hid->open) {
- clear_bit(I2C_HID_STARTED, &ihid->flags);
+ clear_bit(I2C_HID_STARTED, &ihid->flags);
- /* Save some power */
- pm_runtime_put(&client->dev);
- }
- mutex_unlock(&i2c_hid_open_mut);
+ /* Save some power */
+ pm_runtime_put(&client->dev);
}
static int i2c_hid_power(struct hid_device *hid, int lvl)
return 0;
}
+static void i2c_hid_acpi_fix_up_power(struct device *dev)
+{
+ acpi_handle handle = ACPI_HANDLE(dev);
+ struct acpi_device *adev;
+
+ if (handle && acpi_bus_get_device(handle, &adev) == 0)
+ acpi_device_fix_up_power(adev);
+}
+
static const struct acpi_device_id i2c_hid_acpi_match[] = {
{"ACPI0C50", 0 },
{"PNP0C50", 0 },
{
return -ENODEV;
}
+
+static inline void i2c_hid_acpi_fix_up_power(struct device *dev) {}
#endif
#ifdef CONFIG_OF
if (ret < 0)
goto err_regulator;
+ i2c_hid_acpi_fix_up_power(&client->dev);
+
pm_runtime_get_noresume(&client->dev);
pm_runtime_set_active(&client->dev);
pm_runtime_enable(&client->dev);