input: migor_ts - 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/20230102181842.718010-55-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/migor_ts.c

@@ -186,7 +186,7 @@ static void migor_ts_remove(struct i2c_client *client)
 	dev_set_drvdata(&client->dev, NULL);
 }
 
-static int __maybe_unused migor_ts_suspend(struct device *dev)
+static int migor_ts_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct migor_ts_priv *priv = i2c_get_clientdata(client);
@@ -197,7 +197,7 @@ static int __maybe_unused migor_ts_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused migor_ts_resume(struct device *dev)
+static int migor_ts_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct migor_ts_priv *priv = i2c_get_clientdata(client);
@@ -208,7 +208,7 @@ static int __maybe_unused migor_ts_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(migor_ts_pm, migor_ts_suspend, migor_ts_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(migor_ts_pm, migor_ts_suspend, migor_ts_resume);
 
 static const struct i2c_device_id migor_ts_id[] = {
 	{ "migor_ts", 0 },
@@ -219,7 +219,7 @@ MODULE_DEVICE_TABLE(i2c, migor_ts_id);
 static struct i2c_driver migor_ts_driver = {
 	.driver = {
 		.name = "migor_ts",
-		.pm = &migor_ts_pm,
+		.pm = pm_sleep_ptr(&migor_ts_pm),
 	},
 	.probe_new = migor_ts_probe,
 	.remove = migor_ts_remove,