Input: gpio-vibra - 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>
Cc: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230102181842.718010-8-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/misc/gpio-vibra.c

@@ -157,7 +157,7 @@ static int gpio_vibrator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __maybe_unused gpio_vibrator_suspend(struct device *dev)
+static int gpio_vibrator_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct gpio_vibrator *vibrator = platform_get_drvdata(pdev);
@@ -169,7 +169,7 @@ static int __maybe_unused gpio_vibrator_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused gpio_vibrator_resume(struct device *dev)
+static int gpio_vibrator_resume(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct gpio_vibrator *vibrator = platform_get_drvdata(pdev);
@@ -180,7 +180,7 @@ static int __maybe_unused gpio_vibrator_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(gpio_vibrator_pm_ops,
+static DEFINE_SIMPLE_DEV_PM_OPS(gpio_vibrator_pm_ops,
 				gpio_vibrator_suspend, gpio_vibrator_resume);
 
 #ifdef CONFIG_OF
@@ -195,7 +195,7 @@ static struct platform_driver gpio_vibrator_driver = {
 	.probe	= gpio_vibrator_probe,
 	.driver	= {
 		.name	= "gpio-vibrator",
-		.pm	= &gpio_vibrator_pm_ops,
+		.pm	= pm_sleep_ptr(&gpio_vibrator_pm_ops),
 		.of_match_table = of_match_ptr(gpio_vibra_dt_match_table),
 	},
 };