pinctrl: imx: Switch to LATE_SYSTEM_SLEEP_PM_OPS()

Replace SET_LATE_SYSTEM_SLEEP_PM_OPS() with its modern
LATE_SYSTEM_SLEEP_PM_OPS() alternative.

The combined usage of pm_sleep_ptr() and LATE_SYSTEM_SLEEP_PM_OPS() allows
the compiler to evaluate if the runtime suspend/resume() functions
are used at build time or are simply dead code.

This allows removing the __maybe_unused notation from the runtime
suspend/resume() functions.

Signed-off-by: Fabio Estevam <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Linus Walleij <[email protected]>

Author: Fabio Estevam

drivers/pinctrl/freescale/pinctrl-imx.c

@@ -804,23 +804,22 @@ int imx_pinctrl_probe(struct platform_device *pdev,
 }
 EXPORT_SYMBOL_GPL(imx_pinctrl_probe);
 
-static int __maybe_unused imx_pinctrl_suspend(struct device *dev)
+static int imx_pinctrl_suspend(struct device *dev)
 {
 	struct imx_pinctrl *ipctl = dev_get_drvdata(dev);
 
 	return pinctrl_force_sleep(ipctl->pctl);
 }
 
-static int __maybe_unused imx_pinctrl_resume(struct device *dev)
+static int imx_pinctrl_resume(struct device *dev)
 {
 	struct imx_pinctrl *ipctl = dev_get_drvdata(dev);
 
 	return pinctrl_force_default(ipctl->pctl);
 }
 
 const struct dev_pm_ops imx_pinctrl_pm_ops = {
-	SET_LATE_SYSTEM_SLEEP_PM_OPS(imx_pinctrl_suspend,
-					imx_pinctrl_resume)
+	LATE_SYSTEM_SLEEP_PM_OPS(imx_pinctrl_suspend, imx_pinctrl_resume)
 };
 EXPORT_SYMBOL_GPL(imx_pinctrl_pm_ops);
 

drivers/pinctrl/freescale/pinctrl-imx8mq.c

@@ -341,7 +341,7 @@ static struct platform_driver imx8mq_pinctrl_driver = {
 	.driver = {
 		.name = "imx8mq-pinctrl",
 		.of_match_table = imx8mq_pinctrl_of_match,
-		.pm = &imx_pinctrl_pm_ops,
+		.pm = pm_sleep_ptr(&imx_pinctrl_pm_ops),
 		.suppress_bind_attrs = true,
 	},
 	.probe = imx8mq_pinctrl_probe,