ASoC: rt5514: Convert to SYSTEM_SLEEP_PM_OPS()

Use the newer SYSTEM_SLEEP_PM_OPS() macro instead of
SET_SYSTEM_SLEEP_PM_OPS() together with pm_ptr(), which allows us
dropping ugly __maybe_unused attributes.

This optimizes slightly when CONFIG_PM is disabled, too.

Cc: Oder Chiou <[e-mail]>
Signed-off-by: Takashi Iwai <[e-mail]>
Reviewed-by: Charles Keepax <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/codecs/rt5514-spi.c

···
 	return 0;
 }
 
-static int __maybe_unused rt5514_suspend(struct device *dev)
+static int rt5514_suspend(struct device *dev)
 {
 	int irq = to_spi_device(dev)->irq;
 
···
 	return 0;
 }
 
-static int __maybe_unused rt5514_resume(struct device *dev)
+static int rt5514_resume(struct device *dev)
 {
 	struct rt5514_dsp *rt5514_dsp = dev_get_drvdata(dev);
 	int irq = to_spi_device(dev)->irq;
···
 }
 
 static const struct dev_pm_ops rt5514_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(rt5514_suspend, rt5514_resume)
+	SYSTEM_SLEEP_PM_OPS(rt5514_suspend, rt5514_resume)
 };
 
 static const struct of_device_id rt5514_of_match[] = {
···
 static struct spi_driver rt5514_spi_driver = {
 	.driver = {
 		.name = "rt5514",
-		.pm = &rt5514_pm_ops,
+		.pm = pm_ptr(&rt5514_pm_ops),
 		.of_match_table = of_match_ptr(rt5514_of_match),
 	},
 	.probe = rt5514_spi_probe,

sound/soc/codecs/rt5514.c

···
 	return 0;
 }
 
-static __maybe_unused int rt5514_i2c_resume(struct device *dev)
+static int rt5514_i2c_resume(struct device *dev)
 {
 	struct rt5514_priv *rt5514 = dev_get_drvdata(dev);
 	unsigned int val;
···
 }
 
 static const struct dev_pm_ops rt5514_i2_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(NULL, rt5514_i2c_resume)
+	SYSTEM_SLEEP_PM_OPS(NULL, rt5514_i2c_resume)
 };
 
 static struct i2c_driver rt5514_i2c_driver = {
···
 		.name = "rt5514",
 		.acpi_match_table = ACPI_PTR(rt5514_acpi_match),
 		.of_match_table = of_match_ptr(rt5514_of_match),
-		.pm = &rt5514_i2_pm_ops,
+		.pm = pm_ptr(&rt5514_i2_pm_ops),
 	},
 	.probe = rt5514_i2c_probe,
 	.id_table = rt5514_i2c_id,