Input: iqs626a - 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>
Reviewed-by: Jeff LaBundy <jeff@labundy.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230102181842.718010-10-jic23@kernel.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/misc/iqs626a.c

@@ -1712,7 +1712,7 @@ static int iqs626_probe(struct i2c_client *client)
 	return error;
 }
 
-static int __maybe_unused iqs626_suspend(struct device *dev)
+static int iqs626_suspend(struct device *dev)
 {
 	struct iqs626_private *iqs626 = dev_get_drvdata(dev);
 	struct i2c_client *client = iqs626->client;
@@ -1771,7 +1771,7 @@ static int __maybe_unused iqs626_suspend(struct device *dev)
 	return error;
 }
 
-static int __maybe_unused iqs626_resume(struct device *dev)
+static int iqs626_resume(struct device *dev)
 {
 	struct iqs626_private *iqs626 = dev_get_drvdata(dev);
 	struct i2c_client *client = iqs626->client;
@@ -1818,7 +1818,7 @@ static int __maybe_unused iqs626_resume(struct device *dev)
 	return error;
 }
 
-static SIMPLE_DEV_PM_OPS(iqs626_pm, iqs626_suspend, iqs626_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(iqs626_pm, iqs626_suspend, iqs626_resume);
 
 static const struct of_device_id iqs626_of_match[] = {
 	{ .compatible = "azoteq,iqs626a" },
@@ -1830,7 +1830,7 @@ static struct i2c_driver iqs626_i2c_driver = {
 	.driver = {
 		.name = "iqs626a",
 		.of_match_table = iqs626_of_match,
-		.pm = &iqs626_pm,
+		.pm = pm_sleep_ptr(&iqs626_pm),
 	},
 	.probe_new = iqs626_probe,
 };