diff options
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/trigger/ledtrig-cpu.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/drivers/leds/trigger/ledtrig-cpu.c b/drivers/leds/trigger/ledtrig-cpu.c index 938467fb82be..4a6a182d0a88 100644 --- a/drivers/leds/trigger/ledtrig-cpu.c +++ b/drivers/leds/trigger/ledtrig-cpu.c @@ -92,25 +92,17 @@ static struct syscore_ops ledtrig_cpu_syscore_ops = { .resume = ledtrig_cpu_syscore_resume, }; -static int ledtrig_cpu_notify(struct notifier_block *self, - unsigned long action, void *hcpu) +static int ledtrig_starting_cpu(unsigned int cpu) { - switch (action & ~CPU_TASKS_FROZEN) { - case CPU_STARTING: - ledtrig_cpu(CPU_LED_START); - break; - case CPU_DYING: - ledtrig_cpu(CPU_LED_STOP); - break; - } - - return NOTIFY_OK; + ledtrig_cpu(CPU_LED_START); + return 0; } - -static struct notifier_block ledtrig_cpu_nb = { - .notifier_call = ledtrig_cpu_notify, -}; +static int ledtrig_dying_cpu(unsigned int cpu) +{ + ledtrig_cpu(CPU_LED_STOP); + return 0; +} static int __init ledtrig_cpu_init(void) { @@ -133,7 +125,13 @@ static int __init ledtrig_cpu_init(void) } register_syscore_ops(&ledtrig_cpu_syscore_ops); - register_cpu_notifier(&ledtrig_cpu_nb); + + /* + * FIXME: Why needs this to happen in the interrupt disabled + * low level bringup phase of a cpu? + */ + cpuhp_setup_state(CPUHP_AP_LEDTRIG_STARTING, "AP_LEDTRIG_STARTING", + ledtrig_starting_cpu, ledtrig_dying_cpu); pr_info("ledtrig-cpu: registered to indicate activity on CPUs\n"); |