Input: max8997_haptic - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()

SIMPLE_DEV_PM_OPS() is deprecated as it requires explicit protection
against unused function warnings.  The new combination of pm_sleep_ptr()
and DEFINE_SIMPLE_DEV_PM_OPS() allows the compiler to see the functions,
thus suppressing the warning, but still allowing the unused code to be
removed. Thus also drop the __maybe_unused markings.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230102181842.718010-14-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/misc/max8997_haptic.c

@@ -366,7 +366,7 @@ static int max8997_haptic_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static int __maybe_unused max8997_haptic_suspend(struct device *dev)
+static int max8997_haptic_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct max8997_haptic *chip = platform_get_drvdata(pdev);
@@ -376,7 +376,8 @@ static int __maybe_unused max8997_haptic_suspend(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(max8997_haptic_pm_ops, max8997_haptic_suspend, NULL);
+static DEFINE_SIMPLE_DEV_PM_OPS(max8997_haptic_pm_ops,
+				max8997_haptic_suspend, NULL);
 
 static const struct platform_device_id max8997_haptic_id[] = {
 	{ "max8997-haptic", 0 },
@@ -387,7 +388,7 @@ MODULE_DEVICE_TABLE(platform, max8997_haptic_id);
 static struct platform_driver max8997_haptic_driver = {
 	.driver	= {
 		.name	= "max8997-haptic",
-		.pm	= &max8997_haptic_pm_ops,
+		.pm	= pm_sleep_ptr(&max8997_haptic_pm_ops),
 	},
 	.probe		= max8997_haptic_probe,
 	.remove		= max8997_haptic_remove,