Input: ti_am335x_tsc - 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>
Cc: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230102181842.718010-63-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/ti_am335x_tsc.c

@@ -512,7 +512,7 @@ static int titsc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static int __maybe_unused titsc_suspend(struct device *dev)
+static int titsc_suspend(struct device *dev)
 {
 	struct titsc *ts_dev = dev_get_drvdata(dev);
 	unsigned int idle;
@@ -527,7 +527,7 @@ static int __maybe_unused titsc_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused titsc_resume(struct device *dev)
+static int titsc_resume(struct device *dev)
 {
 	struct titsc *ts_dev = dev_get_drvdata(dev);
 
@@ -543,7 +543,7 @@ static int __maybe_unused titsc_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(titsc_pm_ops, titsc_suspend, titsc_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(titsc_pm_ops, titsc_suspend, titsc_resume);
 
 static const struct of_device_id ti_tsc_dt_ids[] = {
 	{ .compatible = "ti,am3359-tsc", },
@@ -556,7 +556,7 @@ static struct platform_driver ti_tsc_driver = {
 	.remove	= titsc_remove,
 	.driver	= {
 		.name   = "TI-am335x-tsc",
-		.pm	= &titsc_pm_ops,
+		.pm	= pm_sleep_ptr(&titsc_pm_ops),
 		.of_match_table = ti_tsc_dt_ids,
 	},
 };