Input: tsc200x - use EXPORT_GPL_SIMPLE_DEV_PM_OPS()

SIMPLE_DEV_PM_OPS() is deprecated as it requires explicit protection
against unused function warnings. The new combination of pm_sleep_ptr()
and EXPORT_GPL_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.
This function also removes the need for separate EXPORT_SYMBOL_GPL()

Signed-off-by: Jonathan Cameron <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/touchscreen/tsc2004.c

···
 	.driver = {
 		.name   = "tsc2004",
 		.of_match_table = of_match_ptr(tsc2004_of_match),
-		.pm     = &tsc200x_pm_ops,
+		.pm     = pm_sleep_ptr(&tsc200x_pm_ops),
 	},
 	.id_table       = tsc2004_idtable,
 	.probe_new      = tsc2004_probe,

drivers/input/touchscreen/tsc2005.c

···
 	.driver	= {
 		.name	= "tsc2005",
 		.of_match_table = of_match_ptr(tsc2005_of_match),
-		.pm	= &tsc200x_pm_ops,
+		.pm	= pm_sleep_ptr(&tsc200x_pm_ops),
 	},
 	.probe	= tsc2005_probe,
 	.remove	= tsc2005_remove,

drivers/input/touchscreen/tsc200x-core.c

···
 }
 EXPORT_SYMBOL_GPL(tsc200x_remove);
 
-static int __maybe_unused tsc200x_suspend(struct device *dev)
+static int tsc200x_suspend(struct device *dev)
 {
 	struct tsc200x *ts = dev_get_drvdata(dev);
 
···
 	return 0;
 }
 
-static int __maybe_unused tsc200x_resume(struct device *dev)
+static int tsc200x_resume(struct device *dev)
 {
 	struct tsc200x *ts = dev_get_drvdata(dev);
 
···
 	return 0;
 }
 
-SIMPLE_DEV_PM_OPS(tsc200x_pm_ops, tsc200x_suspend, tsc200x_resume);
-EXPORT_SYMBOL_GPL(tsc200x_pm_ops);
+EXPORT_GPL_SIMPLE_DEV_PM_OPS(tsc200x_pm_ops, tsc200x_suspend, tsc200x_resume);
 
 MODULE_AUTHOR("Lauri Leukkunen <[e-mail]>");
 MODULE_DESCRIPTION("TSC200x Touchscreen Driver Core");