hwmon: (gpio-fan) Use struct dev_pm_ops for power management

Make the gpio-fan driver define its PM callbacks through
a struct dev_pm_ops object rather than by using legacy PM hooks
in struct platform_driver.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
[linux@roeck-us.net: CONFIG_PM->CONFIG_PM_SLEEP, and remove unnecessary ()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
index b90b3e9..2f4b01b 100644 (file)
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -41,7 +41,7 @@ struct gpio_fan_data {
        int                     num_speed;
        struct gpio_fan_speed   *speed;
        int                     speed_index;
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
        int                     resume_speed;
 #endif
        bool                    pwm_enable;
@@ -476,10 +476,10 @@ static int __devexit gpio_fan_remove(struct platform_device *pdev)
        return 0;
 }
 
-#ifdef CONFIG_PM
-static int gpio_fan_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int gpio_fan_suspend(struct device *dev)
 {
-       struct gpio_fan_data *fan_data = platform_get_drvdata(pdev);
+       struct gpio_fan_data *fan_data = dev_get_drvdata(dev);
 
        if (fan_data->ctrl) {
                fan_data->resume_speed = fan_data->speed_index;
@@ -489,27 +489,28 @@ static int gpio_fan_suspend(struct platform_device *pdev, pm_message_t state)
        return 0;
 }
 
-static int gpio_fan_resume(struct platform_device *pdev)
+static int gpio_fan_resume(struct device *dev)
 {
-       struct gpio_fan_data *fan_data = platform_get_drvdata(pdev);
+       struct gpio_fan_data *fan_data = dev_get_drvdata(dev);
 
        if (fan_data->ctrl)
                set_fan_speed(fan_data, fan_data->resume_speed);
 
        return 0;
 }
+
+static SIMPLE_DEV_PM_OPS(gpio_fan_pm, gpio_fan_suspend, gpio_fan_resume);
+#define GPIO_FAN_PM    &gpio_fan_pm
 #else
-#define gpio_fan_suspend NULL
-#define gpio_fan_resume NULL
+#define GPIO_FAN_PM    NULL
 #endif
 
 static struct platform_driver gpio_fan_driver = {
        .probe          = gpio_fan_probe,
        .remove         = __devexit_p(gpio_fan_remove),
-       .suspend        = gpio_fan_suspend,
-       .resume         = gpio_fan_resume,
        .driver = {
                .name   = "gpio-fan",
+               .pm     = GPIO_FAN_PM,
        },
 };