Input: pxa27x_keypad - 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>
Link: https://lore.kernel.org/r/20221204180841.2211588-21-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/keyboard/pxa27x_keypad.c

@@ -660,7 +660,6 @@ static void pxa27x_keypad_close(struct input_dev *dev)
 	clk_disable_unprepare(keypad->clk);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int pxa27x_keypad_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -706,10 +705,9 @@ static int pxa27x_keypad_resume(struct device *dev)
 
 	return ret;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(pxa27x_keypad_pm_ops,
-			 pxa27x_keypad_suspend, pxa27x_keypad_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(pxa27x_keypad_pm_ops,
+				pxa27x_keypad_suspend, pxa27x_keypad_resume);
 
 
 static int pxa27x_keypad_probe(struct platform_device *pdev)
@@ -830,7 +828,7 @@ static struct platform_driver pxa27x_keypad_driver = {
 	.driver		= {
 		.name	= "pxa27x-keypad",
 		.of_match_table = of_match_ptr(pxa27x_keypad_dt_match),
-		.pm	= &pxa27x_keypad_pm_ops,
+		.pm	= pm_sleep_ptr(&pxa27x_keypad_pm_ops),
 	},
 };
 module_platform_driver(pxa27x_keypad_driver);