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
  18#ifdef CONFIG_CPU_IDLE
  19extern int __init omap3_idle_init(void);
  20extern int __init omap4_idle_init(void);
  21#else
  22static inline int omap3_idle_init(void)
  23{
  24        return 0;
  25}
  26
  27static inline int omap4_idle_init(void)
  28{
  29        return 0;
  30}
  31#endif
  32
  33extern void *omap3_secure_ram_storage;
  34extern void omap3_pm_off_mode_enable(int);
  35extern void omap_sram_idle(void);
  36extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused);
  37extern int (*omap_pm_suspend)(void);
  38
  39#if defined(CONFIG_PM_OPP)
  40extern int omap3_opp_init(void);
  41extern int omap4_opp_init(void);
  42#else
  43static inline int omap3_opp_init(void)
  44{
  45        return -EINVAL;
  46}
  47static inline int omap4_opp_init(void)
  48{
  49        return -EINVAL;
  50}
  51#endif
  52
  53extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
  54extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
  55
  56#ifdef CONFIG_PM_DEBUG
  57extern u32 enable_off_mode;
  58#else
  59#define enable_off_mode 0
  60#endif
  61
  62#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
  63extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
  64#else
  65#define pm_dbg_update_time(pwrdm, prev) do {} while (0);
  66#endif /* CONFIG_PM_DEBUG */
  67
  68/* 24xx */
  69extern void omap24xx_idle_loop_suspend(void);
  70extern unsigned int omap24xx_idle_loop_suspend_sz;
  71
  72extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
  73                                        void __iomem *sdrc_power);
  74extern unsigned int omap24xx_cpu_suspend_sz;
  75
  76/* 3xxx */
  77extern void omap34xx_cpu_suspend(int save_state);
  78
  79/* omap3_do_wfi function pointer and size, for copy to SRAM */
  80extern void omap3_do_wfi(void);
  81extern unsigned int omap3_do_wfi_sz;
  82/* ... and its pointer from SRAM after copy */
  83extern void (*omap3_do_wfi_sram)(void);
  84
  85/* save_secure_ram_context function pointer and size, for copy to SRAM */
  86extern int save_secure_ram_context(u32 *addr);
  87extern unsigned int save_secure_ram_context_sz;
  88
  89extern void omap3_save_scratchpad_contents(void);
  90
  91#define PM_RTA_ERRATUM_i608             (1 << 0)
  92#define PM_SDRC_WAKEUP_ERRATUM_i583     (1 << 1)
  93#define PM_PER_MEMORIES_ERRATUM_i582    (1 << 2)
  94
  95#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
  96extern u16 pm34xx_errata;
  97#define IS_PM34XX_ERRATUM(id)           (pm34xx_errata & (id))
  98extern void enable_omap3630_toggle_l2_on_restore(void);
  99#else
 100#define IS_PM34XX_ERRATUM(id)           0
 101static inline void enable_omap3630_toggle_l2_on_restore(void) { }
 102#endif          /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
 103
 104#define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD      (1 << 0)
 105
 106#if defined(CONFIG_ARCH_OMAP4)
 107extern u16 pm44xx_errata;
 108#define IS_PM44XX_ERRATUM(id)           (pm44xx_errata & (id))
 109#else
 110#define IS_PM44XX_ERRATUM(id)           0
 111#endif
 112
 113#ifdef CONFIG_POWER_AVS_OMAP
 114extern int omap_devinit_smartreflex(void);
 115extern void omap_enable_smartreflex_on_init(void);
 116#else
 117static inline int omap_devinit_smartreflex(void)
 118{
 119        return -EINVAL;
 120}
 121
 122static inline void omap_enable_smartreflex_on_init(void) {}
 123#endif
 124
 125#ifdef CONFIG_TWL4030_CORE
 126extern int omap3_twl_init(void);
 127extern int omap4_twl_init(void);
 128extern int omap3_twl_set_sr_bit(bool enable);
 129#else
 130static inline int omap3_twl_init(void)
 131{
 132        return -EINVAL;
 133}
 134static inline int omap4_twl_init(void)
 135{
 136        return -EINVAL;
 137}
 138#endif
 139
 140#ifdef CONFIG_PM
 141extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut);
 142extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut);
 143extern void omap_pm_setup_sr_i2c_pcb_length(u32 mm);
 144#else
 145static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { }
 146static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; }
 147static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { }
 148#endif
 149
 150#endif
 151