/* * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de> * JZ4740 SoC power management support * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include <linux/init.h> #include <linux/pm.h> #include <linux/delay.h> #include <linux/suspend.h> #include <asm/mach-jz4740/clock.h> static int jz4740_pm_enter(suspend_state_t state) { jz4740_clock_suspend(); jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_SLEEP); __asm__(".set\tmips3\n\t" "wait\n\t" ".set\tmips0"); jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_IDLE); jz4740_clock_resume(); return 0; } static const struct platform_suspend_ops jz4740_pm_ops = { .valid = suspend_valid_only_mem, .enter = jz4740_pm_enter, }; static int __init jz4740_pm_init(void) { suspend_set_ops(&jz4740_pm_ops); return 0; } late_initcall(jz4740_pm_init);