| /* |
| * 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); |