rk3168:rk3188:tps65910:support new tps65910 eeprom

[firefly-linux-kernel-4.4.55.git] / kernel / cpu.c

diff --git a/kernel/cpu.c b/kernel/cpu.c
index aa39dd7a3846da09026293b0520f56fc3be65fe1..eae3d9b3957464f58c430d0dee2450aba093a5d9 100644 (file)
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -668,3 +668,23 @@ void init_cpu_online(const struct cpumask *src)
 {
        cpumask_copy(to_cpumask(cpu_online_bits), src);
 }
+
+static ATOMIC_NOTIFIER_HEAD(idle_notifier);
+
+void idle_notifier_register(struct notifier_block *n)
+{
+       atomic_notifier_chain_register(&idle_notifier, n);
+}
+EXPORT_SYMBOL_GPL(idle_notifier_register);
+
+void idle_notifier_unregister(struct notifier_block *n)
+{
+       atomic_notifier_chain_unregister(&idle_notifier, n);
+}
+EXPORT_SYMBOL_GPL(idle_notifier_unregister);
+
+void idle_notifier_call_chain(unsigned long val)
+{
+       atomic_notifier_call_chain(&idle_notifier, val, NULL);
+}
+EXPORT_SYMBOL_GPL(idle_notifier_call_chain);