Input: rotary-encoder - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()

SIMPLE_DEV_PM_OPS() is deprecated as it requires explicit protection
against unused function warnings.  The new combination of pm_sleep_ptr()
and DEFINE_SIMPLE_DEV_PM_OPS() allows the compiler to see the functions,
thus suppressing the warning, but still allowing the unused code to be
removed. Thus also drop the __maybe_unused markings.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230102181842.718010-23-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/misc/rotary_encoder.c

@@ -317,7 +317,7 @@ static int rotary_encoder_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __maybe_unused rotary_encoder_suspend(struct device *dev)
+static int rotary_encoder_suspend(struct device *dev)
 {
 	struct rotary_encoder *encoder = dev_get_drvdata(dev);
 	unsigned int i;
@@ -330,7 +330,7 @@ static int __maybe_unused rotary_encoder_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused rotary_encoder_resume(struct device *dev)
+static int rotary_encoder_resume(struct device *dev)
 {
 	struct rotary_encoder *encoder = dev_get_drvdata(dev);
 	unsigned int i;
@@ -343,8 +343,8 @@ static int __maybe_unused rotary_encoder_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(rotary_encoder_pm_ops,
-			 rotary_encoder_suspend, rotary_encoder_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(rotary_encoder_pm_ops,
+				rotary_encoder_suspend, rotary_encoder_resume);
 
 #ifdef CONFIG_OF
 static const struct of_device_id rotary_encoder_of_match[] = {
@@ -358,7 +358,7 @@ static struct platform_driver rotary_encoder_driver = {
 	.probe		= rotary_encoder_probe,
 	.driver		= {
 		.name	= DRV_NAME,
-		.pm	= &rotary_encoder_pm_ops,
+		.pm	= pm_sleep_ptr(&rotary_encoder_pm_ops),
 		.of_match_table = of_match_ptr(rotary_encoder_of_match),
 	}
 };