1// SPDX-License-Identifier: GPL-2.0 2#include <linux/init.h> 3#include <linux/suspend.h> 4#include <asm/suspend.h> 5#include "smc.h" 6#include "pm.h" 7 8static int tango_pm_powerdown(unsigned long arg) 9{ 10 tango_suspend(__pa_symbol(cpu_resume)); 11 12 return -EIO; /* tango_suspend has failed */ 13} 14 15static int tango_pm_enter(suspend_state_t state) 16{ 17 if (state == PM_SUSPEND_MEM) 18 return cpu_suspend(0, tango_pm_powerdown); 19 20 return -EINVAL; 21} 22 23static const struct platform_suspend_ops tango_pm_ops = { 24 .enter = tango_pm_enter, 25 .valid = suspend_valid_only_mem, 26}; 27 28void __init tango_pm_init(void) 29{ 30 suspend_set_ops(&tango_pm_ops); 31} 32