Input: chipone_in8318 - 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 #ifdef guards.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230102181842.718010-38-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/chipone_icn8318.c

@@ -148,7 +148,6 @@ static void icn8318_stop(struct input_dev *dev)
 	gpiod_set_value_cansleep(data->wake_gpio, 0);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int icn8318_suspend(struct device *dev)
 {
 	struct icn8318_data *data = i2c_get_clientdata(to_i2c_client(dev));
@@ -172,9 +171,8 @@ static int icn8318_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(icn8318_pm_ops, icn8318_suspend, icn8318_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(icn8318_pm_ops, icn8318_suspend, icn8318_resume);
 
 static int icn8318_probe(struct i2c_client *client)
 {
@@ -263,7 +261,7 @@ MODULE_DEVICE_TABLE(i2c, icn8318_i2c_id);
 static struct i2c_driver icn8318_driver = {
 	.driver = {
 		.name	= "chipone_icn8318",
-		.pm	= &icn8318_pm_ops,
+		.pm	= pm_sleep_ptr(&icn8318_pm_ops),
 		.of_match_table = icn8318_of_match,
 	},
 	.probe_new = icn8318_probe,