gpio: omap: Use modern PM macros

Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused

Signed-off-by: Jisheng Zhang <[e-mail]>
Acked-by: Linus Walleij <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Bartosz Golaszewski <[e-mail]>

drivers/gpio/gpio-omap.c

···
 		clk_unprepare(bank->dbck);
 }
 
-static int __maybe_unused omap_gpio_runtime_suspend(struct device *dev)
+static int omap_gpio_runtime_suspend(struct device *dev)
 {
 	struct gpio_bank *bank = dev_get_drvdata(dev);
 	unsigned long flags;
···
 	return 0;
 }
 
-static int __maybe_unused omap_gpio_runtime_resume(struct device *dev)
+static int omap_gpio_runtime_resume(struct device *dev)
 {
 	struct gpio_bank *bank = dev_get_drvdata(dev);
 	unsigned long flags;
···
 	return 0;
 }
 
-static int __maybe_unused omap_gpio_suspend(struct device *dev)
+static int omap_gpio_suspend(struct device *dev)
 {
 	struct gpio_bank *bank = dev_get_drvdata(dev);
 
···
 	return omap_gpio_runtime_suspend(dev);
 }
 
-static int __maybe_unused omap_gpio_resume(struct device *dev)
+static int omap_gpio_resume(struct device *dev)
 {
 	struct gpio_bank *bank = dev_get_drvdata(dev);
 
···
 }
 
 static const struct dev_pm_ops gpio_pm_ops = {
-	SET_RUNTIME_PM_OPS(omap_gpio_runtime_suspend, omap_gpio_runtime_resume,
-									NULL)
-	SET_LATE_SYSTEM_SLEEP_PM_OPS(omap_gpio_suspend, omap_gpio_resume)
+	RUNTIME_PM_OPS(omap_gpio_runtime_suspend, omap_gpio_runtime_resume, NULL)
+	LATE_SYSTEM_SLEEP_PM_OPS(omap_gpio_suspend, omap_gpio_resume)
 };
 
 static struct platform_driver omap_gpio_driver = {
···
 	.remove		= omap_gpio_remove,
 	.driver		= {
 		.name	= "omap_gpio",
-		.pm	= &gpio_pm_ops,
+		.pm	= pm_ptr(&gpio_pm_ops),
 		.of_match_table = omap_gpio_match,
 	},
 };