Input: mms114 - 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/20230102181842.718010-56-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/mms114.c

@@ -557,7 +557,7 @@ static int mms114_probe(struct i2c_client *client)
 	return 0;
 }
 
-static int __maybe_unused mms114_suspend(struct device *dev)
+static int mms114_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct mms114_data *data = i2c_get_clientdata(client);
@@ -581,7 +581,7 @@ static int __maybe_unused mms114_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused mms114_resume(struct device *dev)
+static int mms114_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct mms114_data *data = i2c_get_clientdata(client);
@@ -601,7 +601,7 @@ static int __maybe_unused mms114_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(mms114_pm_ops, mms114_suspend, mms114_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(mms114_pm_ops, mms114_suspend, mms114_resume);
 
 static const struct i2c_device_id mms114_id[] = {
 	{ "mms114", 0 },
@@ -635,7 +635,7 @@ MODULE_DEVICE_TABLE(of, mms114_dt_match);
 static struct i2c_driver mms114_driver = {
 	.driver = {
 		.name	= "mms114",
-		.pm	= &mms114_pm_ops,
+		.pm	= pm_sleep_ptr(&mms114_pm_ops),
 		.of_match_table = of_match_ptr(mms114_dt_match),
 	},
 	.probe_new	= mms114_probe,