From 67f9cbf9affe39f67cd3f1d2e2a2a43089d9ab3a Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 22 Apr 2011 22:03:31 +0200 Subject: [PATCH] PM / Blackfin: Use struct syscore_ops instead of sysdevs for PM Convert some Blackfin architecture's code to using struct syscore_ops objects for power management instead of sysdev classes and sysdevs. This simplifies the code and reduces the kernel's memory footprint. It also is necessary for removing sysdevs from the kernel entirely in the future. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Acked-by: Mike Frysinger --- arch/blackfin/kernel/nmi.c | 30 +++++++++--------------------- 1 file changed, 9 insertions(+), 21 deletions(-) diff --git a/arch/blackfin/kernel/nmi.c b/arch/blackfin/kernel/nmi.c index 0b5f72f17fd0..401eb1d8e3b4 100644 --- a/arch/blackfin/kernel/nmi.c +++ b/arch/blackfin/kernel/nmi.c @@ -12,7 +12,7 @@ #include #include -#include +#include #include #include #include @@ -196,43 +196,31 @@ void touch_nmi_watchdog(void) /* Suspend/resume support */ #ifdef CONFIG_PM -static int nmi_wdt_suspend(struct sys_device *dev, pm_message_t state) +static int nmi_wdt_suspend(void) { nmi_wdt_stop(); return 0; } -static int nmi_wdt_resume(struct sys_device *dev) +static void nmi_wdt_resume(void) { if (nmi_active) nmi_wdt_start(); - return 0; } -static struct sysdev_class nmi_sysclass = { - .name = DRV_NAME, +static struct syscore_ops nmi_syscore_ops = { .resume = nmi_wdt_resume, .suspend = nmi_wdt_suspend, }; -static struct sys_device device_nmi_wdt = { - .id = 0, - .cls = &nmi_sysclass, -}; - -static int __init init_nmi_wdt_sysfs(void) +static int __init init_nmi_wdt_syscore(void) { - int error; + if (nmi_active) + register_syscore_ops(&nmi_syscore_ops); - if (!nmi_active) - return 0; - - error = sysdev_class_register(&nmi_sysclass); - if (!error) - error = sysdev_register(&device_nmi_wdt); - return error; + return 0; } -late_initcall(init_nmi_wdt_sysfs); +late_initcall(init_nmi_wdt_syscore); #endif /* CONFIG_PM */