Input: pwm-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 <[e-mail]>
Reviewed-by: Linus Walleij <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/misc/pwm-vibra.c

···
 	return 0;
 }
 
-static int __maybe_unused pwm_vibrator_suspend(struct device *dev)
+static int pwm_vibrator_suspend(struct device *dev)
 {
 	struct pwm_vibrator *vibrator = dev_get_drvdata(dev);
 
···
 	return 0;
 }
 
-static int __maybe_unused pwm_vibrator_resume(struct device *dev)
+static int pwm_vibrator_resume(struct device *dev)
 {
 	struct pwm_vibrator *vibrator = dev_get_drvdata(dev);
 
···
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(pwm_vibrator_pm_ops,
-			 pwm_vibrator_suspend, pwm_vibrator_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(pwm_vibrator_pm_ops,
+				pwm_vibrator_suspend, pwm_vibrator_resume);
 
 #ifdef CONFIG_OF
 static const struct of_device_id pwm_vibra_dt_match_table[] = {
···
 	.probe	= pwm_vibrator_probe,
 	.driver	= {
 		.name	= "pwm-vibrator",
-		.pm	= &pwm_vibrator_pm_ops,
+		.pm	= pm_sleep_ptr(&pwm_vibrator_pm_ops),
 		.of_match_table = of_match_ptr(pwm_vibra_dt_match_table),
 	},
 };