Input: cypress-sf - 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>
Link: https://lore.kernel.org/r/20221204180841.2211588-5-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/keyboard/cypress-sf.c

@@ -168,7 +168,7 @@ static int cypress_sf_probe(struct i2c_client *client)
 	return 0;
 };
 
-static int __maybe_unused cypress_sf_suspend(struct device *dev)
+static int cypress_sf_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct cypress_sf_data *touchkey = i2c_get_clientdata(client);
@@ -187,7 +187,7 @@ static int __maybe_unused cypress_sf_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused cypress_sf_resume(struct device *dev)
+static int cypress_sf_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct cypress_sf_data *touchkey = i2c_get_clientdata(client);
@@ -205,8 +205,8 @@ static int __maybe_unused cypress_sf_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(cypress_sf_pm_ops,
-			 cypress_sf_suspend, cypress_sf_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(cypress_sf_pm_ops,
+				cypress_sf_suspend, cypress_sf_resume);
 
 static struct i2c_device_id cypress_sf_id_table[] = {
 	{ CYPRESS_SF_DEV_NAME, 0 },
@@ -225,7 +225,7 @@ MODULE_DEVICE_TABLE(of, cypress_sf_of_match);
 static struct i2c_driver cypress_sf_driver = {
 	.driver = {
 		.name = CYPRESS_SF_DEV_NAME,
-		.pm = &cypress_sf_pm_ops,
+		.pm = pm_sleep_ptr(&cypress_sf_pm_ops),
 		.of_match_table = of_match_ptr(cypress_sf_of_match),
 	},
 	.id_table = cypress_sf_id_table,