ASoC: cs35l41: Use modern pm_ops

Make use of the recently introduced EXPORT_GPL_DEV_PM_OPS() macro, to
conditionally export the runtime/system PM functions.

Replace the old SET_{RUNTIME,SYSTEM_SLEEP,NOIRQ_SYSTEM_SLEEP}_PM_OPS()
helpers with their modern alternatives and get rid of the now
unnecessary '__maybe_unused' annotations on all PM functions.

Additionally, use the pm_ptr() macro to fix the following errors when
building with CONFIG_PM disabled:

ERROR: modpost: "cs35l41_pm_ops" [sound/soc/codecs/snd-soc-cs35l41-spi.ko] undefined!
ERROR: modpost: "cs35l41_pm_ops" [sound/soc/codecs/snd-soc-cs35l41-i2c.ko] undefined!
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20230907171010.1447274-9-cristian.ciocaltea@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cs35l41-i2c.c

@@ -80,7 +80,7 @@ MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_match);
 static struct i2c_driver cs35l41_i2c_driver = {
 	.driver = {
 		.name		= "cs35l41",
-		.pm		= &cs35l41_pm_ops,
+		.pm		= pm_ptr(&cs35l41_pm_ops),
 		.of_match_table = of_match_ptr(cs35l41_of_match),
 		.acpi_match_table = ACPI_PTR(cs35l41_acpi_match),
 	},

sound/soc/codecs/cs35l41-spi.c

@@ -80,7 +80,7 @@ MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_match);
 static struct spi_driver cs35l41_spi_driver = {
 	.driver = {
 		.name		= "cs35l41",
-		.pm		= &cs35l41_pm_ops,
+		.pm		= pm_ptr(&cs35l41_pm_ops),
 		.of_match_table = of_match_ptr(cs35l41_of_match),
 		.acpi_match_table = ACPI_PTR(cs35l41_acpi_match),
 	},

sound/soc/codecs/cs35l41.c

@@ -1368,7 +1368,7 @@ void cs35l41_remove(struct cs35l41_private *cs35l41)
 }
 EXPORT_SYMBOL_GPL(cs35l41_remove);
 
-static int __maybe_unused cs35l41_runtime_suspend(struct device *dev)
+static int cs35l41_runtime_suspend(struct device *dev)
 {
 	struct cs35l41_private *cs35l41 = dev_get_drvdata(dev);
 
@@ -1385,7 +1385,7 @@ static int __maybe_unused cs35l41_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused cs35l41_runtime_resume(struct device *dev)
+static int cs35l41_runtime_resume(struct device *dev)
 {
 	struct cs35l41_private *cs35l41 = dev_get_drvdata(dev);
 	int ret;
@@ -1414,7 +1414,7 @@ static int __maybe_unused cs35l41_runtime_resume(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused cs35l41_sys_suspend(struct device *dev)
+static int cs35l41_sys_suspend(struct device *dev)
 {
 	struct cs35l41_private *cs35l41 = dev_get_drvdata(dev);
 
@@ -1424,7 +1424,7 @@ static int __maybe_unused cs35l41_sys_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused cs35l41_sys_suspend_noirq(struct device *dev)
+static int cs35l41_sys_suspend_noirq(struct device *dev)
 {
 	struct cs35l41_private *cs35l41 = dev_get_drvdata(dev);
 
@@ -1434,7 +1434,7 @@ static int __maybe_unused cs35l41_sys_suspend_noirq(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused cs35l41_sys_resume_noirq(struct device *dev)
+static int cs35l41_sys_resume_noirq(struct device *dev)
 {
 	struct cs35l41_private *cs35l41 = dev_get_drvdata(dev);
 
@@ -1444,7 +1444,7 @@ static int __maybe_unused cs35l41_sys_resume_noirq(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused cs35l41_sys_resume(struct device *dev)
+static int cs35l41_sys_resume(struct device *dev)
 {
 	struct cs35l41_private *cs35l41 = dev_get_drvdata(dev);
 
@@ -1454,13 +1454,12 @@ static int __maybe_unused cs35l41_sys_resume(struct device *dev)
 	return 0;
 }
 
-const struct dev_pm_ops cs35l41_pm_ops = {
-	SET_RUNTIME_PM_OPS(cs35l41_runtime_suspend, cs35l41_runtime_resume, NULL)
+EXPORT_GPL_DEV_PM_OPS(cs35l41_pm_ops) = {
+	RUNTIME_PM_OPS(cs35l41_runtime_suspend, cs35l41_runtime_resume, NULL)
 
-	SET_SYSTEM_SLEEP_PM_OPS(cs35l41_sys_suspend, cs35l41_sys_resume)
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(cs35l41_sys_suspend_noirq, cs35l41_sys_resume_noirq)
+	SYSTEM_SLEEP_PM_OPS(cs35l41_sys_suspend, cs35l41_sys_resume)
+	NOIRQ_SYSTEM_SLEEP_PM_OPS(cs35l41_sys_suspend_noirq, cs35l41_sys_resume_noirq)
 };
-EXPORT_SYMBOL_GPL(cs35l41_pm_ops);
 
 MODULE_DESCRIPTION("ASoC CS35L41 driver");
 MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");