| /* |
| * ARM64 CPU idle arch support |
| * |
| * Copyright (C) 2014 ARM Ltd. |
| * Author: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| |
| #include <asm/cpuidle.h> |
| #include <asm/cpu_ops.h> |
| |
| int cpu_init_idle(unsigned int cpu) |
| { |
| int ret = -EOPNOTSUPP; |
| struct device_node *cpu_node = of_cpu_device_node_get(cpu); |
| |
| if (!cpu_node) |
| return -ENODEV; |
| |
| if (cpu_ops[cpu] && cpu_ops[cpu]->cpu_init_idle) |
| ret = cpu_ops[cpu]->cpu_init_idle(cpu_node, cpu); |
| |
| of_node_put(cpu_node); |
| return ret; |
| } |
