Input: da7280 - 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>
Cc: Roy Im <roy.im.opensource@diasemi.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230102181842.718010-3-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/misc/da7280.c

@@ -1260,7 +1260,7 @@ static int da7280_probe(struct i2c_client *client)
 	return 0;
 }
 
-static int __maybe_unused da7280_suspend(struct device *dev)
+static int da7280_suspend(struct device *dev)
 {
 	struct da7280_haptic *haptics = dev_get_drvdata(dev);
 
@@ -1281,7 +1281,7 @@ static int __maybe_unused da7280_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused da7280_resume(struct device *dev)
+static int da7280_resume(struct device *dev)
 {
 	struct da7280_haptic *haptics = dev_get_drvdata(dev);
 	int retval;
@@ -1313,13 +1313,13 @@ static const struct i2c_device_id da7280_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, da7280_i2c_id);
 
-static SIMPLE_DEV_PM_OPS(da7280_pm_ops, da7280_suspend, da7280_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(da7280_pm_ops, da7280_suspend, da7280_resume);
 
 static struct i2c_driver da7280_driver = {
 	.driver = {
 		.name = "da7280",
 		.of_match_table = of_match_ptr(da7280_of_match),
-		.pm = &da7280_pm_ops,
+		.pm = pm_sleep_ptr(&da7280_pm_ops),
 	},
 	.probe_new = da7280_probe,
 	.id_table = da7280_i2c_id,