hwmon: (abitguru) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()

These newer PM macros allow the compiler to see what code it can remove
if !CONFIG_PM_SLEEP.  This allows the removal of messy #ifdef barriers.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220925172759.3573439-2-jic23@kernel.orgSigned-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/abituguru.c

@@ -1504,7 +1504,6 @@ static struct abituguru_data *abituguru_update_device(struct device *dev)
 		return NULL;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int abituguru_suspend(struct device *dev)
 {
 	struct abituguru_data *data = dev_get_drvdata(dev);
@@ -1526,16 +1525,12 @@ static int abituguru_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(abituguru_pm, abituguru_suspend, abituguru_resume);
-#define ABIT_UGURU_PM	(&abituguru_pm)
-#else
-#define ABIT_UGURU_PM	NULL
-#endif /* CONFIG_PM */
+static DEFINE_SIMPLE_DEV_PM_OPS(abituguru_pm, abituguru_suspend, abituguru_resume);
 
 static struct platform_driver abituguru_driver = {
 	.driver = {
 		.name	= ABIT_UGURU_NAME,
-		.pm	= ABIT_UGURU_PM,
+		.pm	= pm_sleep_ptr(&abituguru_pm),
 	},
 	.probe		= abituguru_probe,
 	.remove		= abituguru_remove,