linux-kernel - [PATCH v2] mtd: st_spi_fsm: Switch from CONFIG_PM_SLEEP guards to pm_sleep

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Message-ID: <20250109155233.59162-1-rgallaispou@gmail.com>
Date: Thu,  9 Jan 2025 16:52:33 +0100
From: Raphael Gallais-Pou <rgallaispou@...il.com>
To: Miquel Raynal <miquel.raynal@...tlin.com>,
	Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>,
	'Uwe Kleine-König' <u.kleine-koenig@...libre.com>
Cc: linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2] mtd: st_spi_fsm: Switch from CONFIG_PM_SLEEP guards to pm_sleep_ptr()

Letting the compiler remove these functions when the kernel is built
without CONFIG_PM_SLEEP support is simpler and less error prone than the
use of #ifdef based kernel configuration guards.

Signed-off-by: Raphael Gallais-Pou <rgallaispou@...il.com>
---
Changes in v2:
  - Split serie in single patches
  - Remove irrelevant 'Link:' from commit log
  - Link to v1: https://lore.kernel.org/r/20241229-update_pm_macro-v1-3-c7d4c4856336@gmail.com
---
 drivers/mtd/devices/st_spi_fsm.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index dba584fa2a53..f2266145b821 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -2104,7 +2104,6 @@ static void stfsm_remove(struct platform_device *pdev)
 	WARN_ON(mtd_device_unregister(&fsm->mtd));
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int stfsmfsm_suspend(struct device *dev)
 {
 	struct stfsm *fsm = dev_get_drvdata(dev);
@@ -2120,9 +2119,8 @@ static int stfsmfsm_resume(struct device *dev)
 
 	return clk_prepare_enable(fsm->clk);
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(stfsm_pm_ops, stfsmfsm_suspend, stfsmfsm_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(stfsm_pm_ops, stfsmfsm_suspend, stfsmfsm_resume);
 
 static const struct of_device_id stfsm_match[] = {
 	{ .compatible = "st,spi-fsm", },
@@ -2136,7 +2134,7 @@ static struct platform_driver stfsm_driver = {
 	.driver		= {
 		.name	= "st-spi-fsm",
 		.of_match_table = stfsm_match,
-		.pm     = &stfsm_pm_ops,
+		.pm     = pm_sleep_ptr(&stfsm_pm_ops),
 	},
 };
 module_platform_driver(stfsm_driver);
-- 
2.47.1