diff options
Diffstat (limited to 'arch/arm/mach-omap2/omap-wakeupgen.c')
| -rw-r--r-- | arch/arm/mach-omap2/omap-wakeupgen.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c index a8a8d0efe350..701dfecad64b 100644 --- a/arch/arm/mach-omap2/omap-wakeupgen.c +++ b/arch/arm/mach-omap2/omap-wakeupgen.c @@ -180,6 +180,36 @@ static void wakeupgen_irqmask_all(unsigned int cpu, unsigned int set) spin_unlock_irqrestore(&wakeupgen_lock, flags); } +#ifdef CONFIG_HOTPLUG_CPU +static int __cpuinit irq_cpu_hotplug_notify(struct notifier_block *self, + unsigned long action, void *hcpu) +{ + unsigned int cpu = (unsigned int)hcpu; + + switch (action) { + case CPU_ONLINE: + wakeupgen_irqmask_all(cpu, 0); + break; + case CPU_DEAD: + wakeupgen_irqmask_all(cpu, 1); + break; + } + return NOTIFY_OK; +} + +static struct notifier_block __refdata irq_hotplug_notifier = { + .notifier_call = irq_cpu_hotplug_notify, +}; + +static void __init irq_hotplug_init(void) +{ + register_hotcpu_notifier(&irq_hotplug_notifier); +} +#else +static void __init irq_hotplug_init(void) +{} +#endif + /* * Initialise the wakeupgen module. */ @@ -222,5 +252,7 @@ int __init omap_wakeupgen_init(void) for (i = 0; i < NR_IRQS; i++) irq_target_cpu[i] = boot_cpu; + irq_hotplug_init(); + return 0; } |