gpio: xilinx: 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-xilinx.c

···
 	pm_runtime_put(chip->parent);
 }
 
-static int __maybe_unused xgpio_suspend(struct device *dev)
+static int xgpio_suspend(struct device *dev)
 {
 	struct xgpio_instance *gpio = dev_get_drvdata(dev);
 	struct irq_data *data = irq_get_irq_data(gpio->irq);
···
 {
 }
 
-static int __maybe_unused xgpio_resume(struct device *dev)
+static int xgpio_resume(struct device *dev)
 {
 	struct xgpio_instance *gpio = dev_get_drvdata(dev);
 	struct irq_data *data = irq_get_irq_data(gpio->irq);
···
 	return 0;
 }
 
-static int __maybe_unused xgpio_runtime_suspend(struct device *dev)
+static int xgpio_runtime_suspend(struct device *dev)
 {
 	struct xgpio_instance *gpio = dev_get_drvdata(dev);
 
···
 	return 0;
 }
 
-static int __maybe_unused xgpio_runtime_resume(struct device *dev)
+static int xgpio_runtime_resume(struct device *dev)
 {
 	struct xgpio_instance *gpio = dev_get_drvdata(dev);
 
···
 }
 
 static const struct dev_pm_ops xgpio_dev_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(xgpio_suspend, xgpio_resume)
-	SET_RUNTIME_PM_OPS(xgpio_runtime_suspend,
-			   xgpio_runtime_resume, NULL)
+	SYSTEM_SLEEP_PM_OPS(xgpio_suspend, xgpio_resume)
+	RUNTIME_PM_OPS(xgpio_runtime_suspend, xgpio_runtime_resume, NULL)
 };
 
 /**
···
 	.driver		= {
 			.name = "gpio-xilinx",
 			.of_match_table	= xgpio_of_match,
-			.pm = &xgpio_dev_pm_ops,
+			.pm = pm_ptr(&xgpio_dev_pm_ops),
 	},
 };