watchdog: dw_wdt: convert to SIMPLE_DEV_PM_OPS

The dw_wdt only provides PM_SLEEP operations, so convert the driver
to use SIMPLE_DEV_PM_OPS instead of populating the struct manually.
This has the added effect of simplifying the CONFIG_PM ifdefs.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index e621098..4d3906d 100644 (file)
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -252,7 +252,7 @@ static int dw_wdt_release(struct inode *inode, struct file *filp)
        return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int dw_wdt_suspend(struct device *dev)
 {
        clk_disable(dw_wdt.clk);
@@ -271,12 +271,9 @@ static int dw_wdt_resume(struct device *dev)
 
        return 0;
 }
+#endif /* CONFIG_PM_SLEEP */
 
-static const struct dev_pm_ops dw_wdt_pm_ops = {
-       .suspend        = dw_wdt_suspend,
-       .resume         = dw_wdt_resume,
-};
-#endif /* CONFIG_PM */
+static SIMPLE_DEV_PM_OPS(dw_wdt_pm_ops, dw_wdt_suspend, dw_wdt_resume);
 
 static const struct file_operations wdt_fops = {
        .owner          = THIS_MODULE,
@@ -346,9 +343,7 @@ static struct platform_driver dw_wdt_driver = {
        .driver         = {
                .name   = "dw_wdt",
                .owner  = THIS_MODULE,
-#ifdef CONFIG_PM
                .pm     = &dw_wdt_pm_ops,
-#endif /* CONFIG_PM */
        },
 };