linux-kernel - [PATCH 10/28] mfd: 88pm860x: Remove #ifdef guards for PM related functions

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Date:   Sun,  7 Aug 2022 16:52:29 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     linux-kernel@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH 10/28] mfd: 88pm860x: 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.

The advantage is then that these functions are now always compiled
independently of any Kconfig option, and thanks to that bugs and
regressions are easier to catch.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
 drivers/mfd/88pm860x-core.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index b1e829ea909b..b698eb59041e 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -1213,7 +1213,6 @@ static int pm860x_remove(struct i2c_client *client)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int pm860x_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
@@ -1233,9 +1232,8 @@ static int pm860x_resume(struct device *dev)
 		disable_irq_wake(chip->core_irq);
 	return 0;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
 
 static const struct i2c_device_id pm860x_id_table[] = {
 	{ "88PM860x", 0 },
@@ -1252,7 +1250,7 @@ MODULE_DEVICE_TABLE(of, pm860x_dt_ids);
 static struct i2c_driver pm860x_driver = {
 	.driver	= {
 		.name	= "88PM860x",
-		.pm     = &pm860x_pm_ops,
+		.pm     = pm_sleep_ptr(&pm860x_pm_ops),
 		.of_match_table	= pm860x_dt_ids,
 	},
 	.probe_new	= pm860x_probe,
-- 
2.35.1