Input: iqs269a - 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: Jeff LaBundy <jeff@labundy.com>
Reviewed-by: Jeff LaBundy <jeff@labundy.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230102181842.718010-9-jic23@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/misc/iqs269a.c

@@ -1697,7 +1697,7 @@ static int iqs269_probe(struct i2c_client *client)
 	return error;
 }
 
-static int __maybe_unused iqs269_suspend(struct device *dev)
+static int iqs269_suspend(struct device *dev)
 {
 	struct iqs269_private *iqs269 = dev_get_drvdata(dev);
 	struct i2c_client *client = iqs269->client;
@@ -1756,7 +1756,7 @@ err_irq:
 	return error;
 }
 
-static int __maybe_unused iqs269_resume(struct device *dev)
+static int iqs269_resume(struct device *dev)
 {
 	struct iqs269_private *iqs269 = dev_get_drvdata(dev);
 	struct i2c_client *client = iqs269->client;
@@ -1803,7 +1803,7 @@ err_irq:
 	return error;
 }
 
-static SIMPLE_DEV_PM_OPS(iqs269_pm, iqs269_suspend, iqs269_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(iqs269_pm, iqs269_suspend, iqs269_resume);
 
 static const struct of_device_id iqs269_of_match[] = {
 	{ .compatible = "azoteq,iqs269a" },
@@ -1815,7 +1815,7 @@ static struct i2c_driver iqs269_i2c_driver = {
 	.driver = {
 		.name = "iqs269a",
 		.of_match_table = iqs269_of_match,
-		.pm = &iqs269_pm,
+		.pm = pm_sleep_ptr(&iqs269_pm),
 	},
 	.probe_new = iqs269_probe,
 };