linux-kernel - [PATCH v3 22/28] mfd: motorola-cpcap: Remove #ifdef guards for PM related functions

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Message-Id: <20221023094852.8035-23-paul@crapouillou.net>
Date:   Sun, 23 Oct 2022 10:48:46 +0100
From:   Paul Cercueil <paul@...pouillou.net>
To:     Lee Jones <lee@...nel.org>
Cc:     linux-kernel@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH v3 22/28] mfd: motorola-cpcap: 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@...pouillou.net>
---
 drivers/mfd/motorola-cpcap.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/motorola-cpcap.c b/drivers/mfd/motorola-cpcap.c
index 265464b5d7cc..ae8930eff72d 100644
--- a/drivers/mfd/motorola-cpcap.c
+++ b/drivers/mfd/motorola-cpcap.c
@@ -221,7 +221,6 @@ static const struct regmap_config cpcap_regmap_config = {
 	.val_format_endian = REGMAP_ENDIAN_LITTLE,
 };
 
-#ifdef CONFIG_PM_SLEEP
 static int cpcap_suspend(struct device *dev)
 {
 	struct spi_device *spi = to_spi_device(dev);
@@ -239,9 +238,8 @@ static int cpcap_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(cpcap_pm, cpcap_suspend, cpcap_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(cpcap_pm, cpcap_suspend, cpcap_resume);
 
 static const struct mfd_cell cpcap_mfd_devices[] = {
 	{
@@ -346,7 +344,7 @@ static struct spi_driver cpcap_driver = {
 	.driver = {
 		.name = "cpcap-core",
 		.of_match_table = cpcap_of_match,
-		.pm = &cpcap_pm,
+		.pm = pm_sleep_ptr(&cpcap_pm),
 	},
 	.probe = cpcap_probe,
 	.id_table = cpcap_spi_ids,
-- 
2.35.1