diff options
Diffstat (limited to 'drivers/base/cpu.c')
| -rw-r--r-- | drivers/base/cpu.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 11027b2146bc..5a537093b9a6 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -435,6 +435,16 @@ static int cpu_uevent(struct device *dev, struct kobj_uevent_env *env) } #endif +static int cpu_dev_pm_unset_is_prepared(unsigned int cpu) +{ + struct device *cpu_dev = get_cpu_device(cpu); + + if (cpu_dev) + cpu_dev->power.is_prepared = false; + + return 0; +} + /* * register_cpu - Setup a sysfs device for a CPU. * @cpu - cpu->hotpluggable field set to 1 will generate a control file in @@ -469,7 +479,9 @@ int register_cpu(struct cpu *cpu, int num) register_cpu_under_node(num, cpu_to_node(num)); dev_pm_qos_expose_latency_limit(&cpu->dev, 0); - return 0; + return cpuhp_setup_state_nocalls(CPUHP_CPUDEV_PM_PREPARE, + "base/cpu/dev_pm:prepare", + cpu_dev_pm_unset_is_prepared, NULL); } struct device *get_cpu_device(unsigned cpu) |