irqchip/renesas-intc-irqpin: Convert to DEFINE_SIMPLE_DEV_PM_OPS()

Convert the Renesas INTC External IRQ Pin driver from SIMPLE_DEV_PM_OPS()
to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr().  This allows to drop the
__maybe_unused annotations from its suspend callbacks, and reduces kernel
size in case CONFIG_PM or CONFIG_PM_SLEEP is disabled.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/865e5274cc516d8c345048330a46e753e2bda677.1752086656.git.geert+renesas@glider.be

Author: geertu

drivers/irqchip/irq-renesas-intc-irqpin.c

@@ -570,7 +570,7 @@ static void intc_irqpin_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 }
 
-static int __maybe_unused intc_irqpin_suspend(struct device *dev)
+static int intc_irqpin_suspend(struct device *dev)
 {
 	struct intc_irqpin_priv *p = dev_get_drvdata(dev);
 
@@ -580,15 +580,15 @@ static int __maybe_unused intc_irqpin_suspend(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(intc_irqpin_pm_ops, intc_irqpin_suspend, NULL);
+static DEFINE_SIMPLE_DEV_PM_OPS(intc_irqpin_pm_ops, intc_irqpin_suspend, NULL);
 
 static struct platform_driver intc_irqpin_device_driver = {
 	.probe		= intc_irqpin_probe,
 	.remove		= intc_irqpin_remove,
 	.driver		= {
 		.name		= "renesas_intc_irqpin",
 		.of_match_table	= intc_irqpin_dt_ids,
-		.pm		= &intc_irqpin_pm_ops,
+		.pm		= pm_sleep_ptr(&intc_irqpin_pm_ops),
 	}
 };