LXR linux/arch/arm/mach-omap2/pm.h

   1/*
   2 * OMAP2/3 Power Management Routines
   3 *
   4 * Copyright (C) 2008 Nokia Corporation
   5 * Jouni Hogander
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License version 2 as
   9 * published by the Free Software Foundation.
  10 */
  11#ifndef __ARCH_ARM_MACH_OMAP2_PM_H
  12#define __ARCH_ARM_MACH_OMAP2_PM_H
  13
  14#include <linux/err.h>
  15
  16#include "powerdomain.h"
  17
  18extern void *omap3_secure_ram_storage;
  19extern void omap3_pm_off_mode_enable(int);
  20extern void omap_sram_idle(void);
  21extern int omap3_can_sleep(void);
  22extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
  23extern int omap3_idle_init(void);
  24
  25#if defined(CONFIG_PM_OPP)
  26extern int omap3_opp_init(void);
  27extern int omap4_opp_init(void);
  28#else
  29static inline int omap3_opp_init(void)
  30{
  31        return -EINVAL;
  32}
  33static inline int omap4_opp_init(void)
  34{
  35        return -EINVAL;
  36}
  37#endif
  38
  39struct cpuidle_params {
  40        u8  valid;
  41        u32 sleep_latency;
  42        u32 wake_latency;
  43        u32 threshold;
  44};
  45
  46#if defined(CONFIG_PM) && defined(CONFIG_CPU_IDLE)
  47extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params);
  48#else
  49static
  50inline void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params)
  51{
  52}
  53#endif
  54
  55extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
  56extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
  57
  58extern u32 wakeup_timer_seconds;
  59extern u32 wakeup_timer_milliseconds;
  60extern struct omap_dm_timer *gptimer_wakeup;
  61
  62#ifdef CONFIG_PM_DEBUG
  63extern void omap2_pm_dump(int mode, int resume, unsigned int us);
  64extern void omap2_pm_wakeup_on_timer(u32 seconds, u32 milliseconds);
  65extern int omap2_pm_debug;
  66extern u32 enable_off_mode;
  67extern u32 sleep_while_idle;
  68#else
  69#define omap2_pm_dump(mode, resume, us)         do {} while (0);
  70#define omap2_pm_wakeup_on_timer(seconds, milliseconds) do {} while (0);
  71#define omap2_pm_debug                          0
  72#define enable_off_mode 0
  73#define sleep_while_idle 0
  74#endif
  75
  76#if defined(CONFIG_CPU_IDLE)
  77extern void omap3_cpuidle_update_states(u32, u32);
  78#endif
  79
  80#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
  81extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
  82extern int pm_dbg_regset_save(int reg_set);
  83extern int pm_dbg_regset_init(int reg_set);
  84#else
  85#define pm_dbg_update_time(pwrdm, prev) do {} while (0);
  86#define pm_dbg_regset_save(reg_set) do {} while (0);
  87#define pm_dbg_regset_init(reg_set) do {} while (0);
  88#endif /* CONFIG_PM_DEBUG */
  89
  90extern void omap24xx_idle_loop_suspend(void);
  91
  92extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
  93                                        void __iomem *sdrc_power);
  94extern void omap34xx_cpu_suspend(u32 *addr, int save_state);
  95extern void save_secure_ram_context(u32 *addr);
  96extern void omap3_save_scratchpad_contents(void);
  97
  98extern unsigned int omap24xx_idle_loop_suspend_sz;
  99extern unsigned int save_secure_ram_context_sz;
 100extern unsigned int omap24xx_cpu_suspend_sz;
 101extern unsigned int omap34xx_cpu_suspend_sz;
 102
 103#define PM_RTA_ERRATUM_i608             (1 << 0)
 104#define PM_SDRC_WAKEUP_ERRATUM_i583     (1 << 1)
 105
 106#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
 107extern u16 pm34xx_errata;
 108#define IS_PM34XX_ERRATUM(id)           (pm34xx_errata & (id))
 109extern void enable_omap3630_toggle_l2_on_restore(void);
 110#else
 111#define IS_PM34XX_ERRATUM(id)           0
 112static inline void enable_omap3630_toggle_l2_on_restore(void) { }
 113#endif          /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
 114
 115#ifdef CONFIG_OMAP_SMARTREFLEX
 116extern int omap_devinit_smartreflex(void);
 117extern void omap_enable_smartreflex_on_init(void);
 118#else
 119static inline int omap_devinit_smartreflex(void)
 120{
 121        return -EINVAL;
 122}
 123
 124static inline void omap_enable_smartreflex_on_init(void) {}
 125#endif
 126
 127#ifdef CONFIG_TWL4030_CORE
 128extern int omap3_twl_init(void);
 129extern int omap4_twl_init(void);
 130#else
 131static inline int omap3_twl_init(void)
 132{
 133        return -EINVAL;
 134}
 135static inline int omap4_twl_init(void)
 136{
 137        return -EINVAL;
 138}
 139#endif
 140
 141#endif
 142