diff options
| -rw-r--r-- | arch/arm/kernel/smp_twd.c | 31 | ||||
| -rw-r--r-- | include/linux/cpuhotplug.h | 1 |
2 files changed, 12 insertions, 20 deletions
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c index b6ec65e68009..02d5e5e8d44c 100644 --- a/arch/arm/kernel/smp_twd.c +++ b/arch/arm/kernel/smp_twd.c @@ -310,24 +310,17 @@ static void twd_timer_setup(void) enable_percpu_irq(clk->irq, 0); } -static int twd_timer_cpu_notify(struct notifier_block *self, - unsigned long action, void *hcpu) +static int twd_timer_starting_cpu(unsigned int cpu) { - switch (action & ~CPU_TASKS_FROZEN) { - case CPU_STARTING: - twd_timer_setup(); - break; - case CPU_DYING: - twd_timer_stop(); - break; - } - - return NOTIFY_OK; + twd_timer_setup(); + return 0; } -static struct notifier_block twd_timer_cpu_nb = { - .notifier_call = twd_timer_cpu_notify, -}; +static int twd_timer_dying_cpu(unsigned int cpu) +{ + twd_timer_stop(); + return 0; +} static int __init twd_local_timer_common_register(struct device_node *np) { @@ -345,9 +338,9 @@ static int __init twd_local_timer_common_register(struct device_node *np) goto out_free; } - err = register_cpu_notifier(&twd_timer_cpu_nb); - if (err) - goto out_irq; + cpuhp_setup_state_nocalls(CPUHP_AP_ARM_TWD_STARTING, + "AP_ARM_TWD_STARTING", + twd_timer_starting_cpu, twd_timer_dying_cpu); twd_get_clock(np); if (!of_property_read_bool(np, "always-on")) @@ -365,8 +358,6 @@ static int __init twd_local_timer_common_register(struct device_node *np) return 0; -out_irq: - free_percpu_irq(twd_ppi, twd_evt); out_free: iounmap(twd_base); twd_base = NULL; diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index 2057e64e4876..ad48881ba02d 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -40,6 +40,7 @@ enum cpuhp_state { CPUHP_AP_ARM_L2X0_STARTING, CPUHP_AP_ARM_ARCH_TIMER_STARTING, CPUHP_AP_DUMMY_TIMER_STARTING, + CPUHP_AP_ARM_TWD_STARTING, CPUHP_AP_METAG_TIMER_STARTING, CPUHP_AP_QCOM_TIMER_STARTING, CPUHP_AP_MIPS_GIC_TIMER_STARTING, |