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watchdog: sama5d4_wdt: Remove #ifdef guards for PM related functions

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Use the new LATE_SYSTEM_SLEEP_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. Not using #ifdef guards means that the code is
always compiled independently of any Kconfig option, and thanks to that
bugs and regressions are easier to catch.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: linux-arm-kernel@lists.infradead.org
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220628193449.160585-6-paul@crapouillou.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Paul Cercueil 2022-06-28 20:34:46 +01:00 committed by Wim Van Sebroeck
parent aa55761ab4
commit 5c040ea210
1 changed files with 3 additions and 5 deletions
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8
drivers/watchdog/sama5d4_wdt.c
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@ -339,7 +339,6 @@ static const struct of_device_id sama5d4_wdt_of_match[] = {
};
MODULE_DEVICE_TABLE(of, sama5d4_wdt_of_match);
#ifdef CONFIG_PM_SLEEP
static int sama5d4_wdt_suspend_late(struct device *dev)
{
struct sama5d4_wdt *wdt = dev_get_drvdata(dev);
@ -366,18 +365,17 @@ static int sama5d4_wdt_resume_early(struct device *dev)
return 0;
}
#endif
static const struct dev_pm_ops sama5d4_wdt_pm_ops = {
SET_LATE_SYSTEM_SLEEP_PM_OPS(sama5d4_wdt_suspend_late,
sama5d4_wdt_resume_early)
LATE_SYSTEM_SLEEP_PM_OPS(sama5d4_wdt_suspend_late,
sama5d4_wdt_resume_early)
};
static struct platform_driver sama5d4_wdt_driver = {
.probe = sama5d4_wdt_probe,
.driver = {
.name = "sama5d4_wdt",
.pm = &sama5d4_wdt_pm_ops,
.pm = pm_sleep_ptr(&sama5d4_wdt_pm_ops),
.of_match_table = sama5d4_wdt_of_match,
}
};