mfd: stpmic1: Remove #ifdef guards for PM related functions

Use the new DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() macros
to handle the .suspend/.resume callbacks.

These macros allow the suspend and resume functions to be automatically
dropped by the compiler when CONFIG_SUSPEND is disabled, without having
to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Lee Jones <lee@kernel.org>

drivers/mfd/stpmic1.c

@@ -161,7 +161,6 @@ static int stpmic1_probe(struct i2c_client *i2c)
 	return devm_of_platform_populate(dev);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int stpmic1_suspend(struct device *dev)
 {
 	struct i2c_client *i2c = to_i2c_client(dev);
@@ -186,9 +185,8 @@ static int stpmic1_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(stpmic1_pm, stpmic1_suspend, stpmic1_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(stpmic1_pm, stpmic1_suspend, stpmic1_resume);
 
 static const struct of_device_id stpmic1_of_match[] = {
 	{ .compatible = "st,stpmic1", },
@@ -200,7 +198,7 @@ static struct i2c_driver stpmic1_driver = {
 	.driver = {
 		.name = "stpmic1",
 		.of_match_table = of_match_ptr(stpmic1_of_match),
-		.pm = &stpmic1_pm,
+		.pm = pm_sleep_ptr(&stpmic1_pm),
 	},
 	.probe_new = stpmic1_probe,
 };