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watchdog: at91rm9200: Remove #ifdef guards for PM related functions

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Use the pm_ptr() macro to handle the .suspend/.resume callbacks.

This macro allows 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>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20221020185047.1001522-2-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 2022-10-20 19:50:44 +01:00 • committed by Wim Van Sebroeck
parent 08435c2aab
commit b49e2a3cfb
2 changed files with 4 additions and 16 deletions
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11
drivers/watchdog/at91rm9200_wdt.c
View file

@ -278,8 +278,6 @@ static void at91wdt_shutdown(struct platform_device *pdev)
at91_wdt_stop(); at91_wdt_stop();
} }
#ifdef CONFIG_PM
static int at91wdt_suspend(struct platform_device *pdev, pm_message_t message) static int at91wdt_suspend(struct platform_device *pdev, pm_message_t message)
{ {
at91_wdt_stop(); at91_wdt_stop();
@ -293,11 +291,6 @@ static int at91wdt_resume(struct platform_device *pdev)
return 0; return 0;
} }
#else
#define at91wdt_suspend NULL
#define at91wdt_resume NULL
#endif
static const struct of_device_id at91_wdt_dt_ids[] = { static const struct of_device_id at91_wdt_dt_ids[] = {
{ .compatible = "atmel,at91rm9200-wdt" }, { .compatible = "atmel,at91rm9200-wdt" },
{ /* sentinel */ } { /* sentinel */ }
@ -308,8 +301,8 @@ static struct platform_driver at91wdt_driver = {
.probe = at91wdt_probe, .probe = at91wdt_probe,
.remove = at91wdt_remove, .remove = at91wdt_remove,
.shutdown = at91wdt_shutdown, .shutdown = at91wdt_shutdown,
.suspend = at91wdt_suspend, .suspend = pm_ptr(at91wdt_suspend),
.resume = at91wdt_resume, .resume = pm_ptr(at91wdt_resume),
.driver = { .driver = {
.name = "atmel_st_watchdog", .name = "atmel_st_watchdog",
.of_match_table = at91_wdt_dt_ids, .of_match_table = at91_wdt_dt_ids,

9
drivers/watchdog/db8500_wdt.c
View file

@ -105,7 +105,6 @@ static int db8500_wdt_probe(struct platform_device *pdev)
return 0; return 0;
} }
#ifdef CONFIG_PM
static int db8500_wdt_suspend(struct platform_device *pdev, static int db8500_wdt_suspend(struct platform_device *pdev,
pm_message_t state) pm_message_t state)
{ {
@ -130,15 +129,11 @@ static int db8500_wdt_resume(struct platform_device *pdev)
} }
return 0; return 0;
} }
#else
#define db8500_wdt_suspend NULL
#define db8500_wdt_resume NULL
#endif
static struct platform_driver db8500_wdt_driver = { static struct platform_driver db8500_wdt_driver = {
.probe = db8500_wdt_probe, .probe = db8500_wdt_probe,
.suspend = db8500_wdt_suspend, .suspend = pm_ptr(db8500_wdt_suspend),
.resume = db8500_wdt_resume, .resume = pm_ptr(db8500_wdt_resume),
.driver = { .driver = {
.name = "db8500_wdt", .name = "db8500_wdt",
}, },