drivers/rtc/rtc-ds1374.c: add CONFIG_PM_SLEEP to suspend/resume functions

Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following
build warning when CONFIG_PM_SLEEP is not selected.  This is because
sleep PM callbacks defined by SIMPLE_DEV_PM_OPS are only used when the
CONFIG_PM_SLEEP is enabled.

  drivers/rtc/rtc-ds1374.c:413:12: warning: 'ds1374_suspend' defined but not used [-Wunused-function]
  drivers/rtc/rtc-ds1374.c:422:12: warning: 'ds1374_resume' defined but not used [-Wunused-function]

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
index fef7686..67cd1e3 100644 (file)
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -409,7 +409,7 @@ static int ds1374_remove(struct i2c_client *client)
        return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int ds1374_suspend(struct device *dev)
 {
        struct i2c_client *client = to_i2c_client(dev);
@@ -427,19 +427,15 @@ static int ds1374_resume(struct device *dev)
                disable_irq_wake(client->irq);
        return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(ds1374_pm, ds1374_suspend, ds1374_resume);
 
-#define DS1374_PM (&ds1374_pm)
-#else
-#define DS1374_PM NULL
-#endif
-
 static struct i2c_driver ds1374_driver = {
        .driver = {
                .name = "rtc-ds1374",
                .owner = THIS_MODULE,
-               .pm = DS1374_PM,
+               .pm = &ds1374_pm,
        },
        .probe = ds1374_probe,
        .remove = ds1374_remove,