1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Copyright 2011 Calxeda, Inc. 4 */ 5 6#include <linux/cpu_pm.h> 7#include <linux/init.h> 8#include <linux/psci.h> 9#include <linux/suspend.h> 10 11#include <asm/suspend.h> 12 13#include <uapi/linux/psci.h> 14 15#define HIGHBANK_SUSPEND_PARAM \ 16 ((0 << PSCI_0_2_POWER_STATE_ID_SHIFT) | \ 17 (1 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) | \ 18 (PSCI_POWER_STATE_TYPE_POWER_DOWN << PSCI_0_2_POWER_STATE_TYPE_SHIFT)) 19 20static int highbank_suspend_finish(unsigned long val) 21{ 22 return psci_ops.cpu_suspend(HIGHBANK_SUSPEND_PARAM, __pa(cpu_resume)); 23} 24 25static int highbank_pm_enter(suspend_state_t state) 26{ 27 cpu_pm_enter(); 28 cpu_cluster_pm_enter(); 29 30 cpu_suspend(0, highbank_suspend_finish); 31 32 cpu_cluster_pm_exit(); 33 cpu_pm_exit(); 34 35 return 0; 36} 37 38static const struct platform_suspend_ops highbank_pm_ops = { 39 .enter = highbank_pm_enter, 40 .valid = suspend_valid_only_mem, 41}; 42 43void __init highbank_pm_init(void) 44{ 45 if (!psci_ops.cpu_suspend) 46 return; 47 48 suspend_set_ops(&highbank_pm_ops); 49} 50