diff --git a/drivers/thermal/intel/intel_hfi.c b/drivers/thermal/intel/intel_hfi.c index 158a2b7c6b6f591adb9e555e9b9ed3fd5b981352..d442d639a9006330a9e8e97e1278762a9aabcc06 100644 --- a/drivers/thermal/intel/intel_hfi.c +++ b/drivers/thermal/intel/intel_hfi.c @@ -33,7 +33,9 @@ #include #include #include +#include #include +#include #include #include @@ -524,6 +526,30 @@ static __init int hfi_parse_features(void) return 0; } +static void hfi_do_enable(void) +{ + /* This code runs only on the boot CPU. */ + struct hfi_cpu_info *info = &per_cpu(hfi_cpu_info, 0); + struct hfi_instance *hfi_instance = info->hfi_instance; + + /* No locking needed. There is no concurrency with CPU online. */ + hfi_set_hw_table(hfi_instance); + hfi_enable(); +} + +static int hfi_do_disable(void) +{ + /* No locking needed. There is no concurrency with CPU offline. */ + hfi_disable(); + + return 0; +} + +static struct syscore_ops hfi_pm_ops = { + .resume = hfi_do_enable, + .suspend = hfi_do_disable, +}; + void __init intel_hfi_init(void) { struct hfi_instance *hfi_instance; @@ -555,6 +581,8 @@ void __init intel_hfi_init(void) if (!hfi_updates_wq) goto err_nomem; + register_syscore_ops(&hfi_pm_ops); + return; err_nomem: