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 omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
  22extern int omap3_idle_init(void);
  23extern int omap4_idle_init(void);
  24extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused);
  25extern int (*omap_pm_suspend)(void);
  26
  27#if defined(CONFIG_PM_OPP)
  28extern int omap3_opp_init(void);
  29extern int omap4_opp_init(void);
  30#else
  31static inline int omap3_opp_init(void)
  32{
  33        return -EINVAL;
  34}
  35static inline int omap4_opp_init(void)
  36{
  37        return -EINVAL;
  38}
  39#endif
  40
  41extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
  42extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
  43
  44#ifdef CONFIG_PM_DEBUG
  45extern u32 enable_off_mode;
  46#else
  47#define enable_off_mode 0
  48#endif
  49
  50#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
  51extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
  52#else
  53#define pm_dbg_update_time(pwrdm, prev) do {} while (0);
  54#endif /* CONFIG_PM_DEBUG */
  55
  56/* 24xx */
  57extern void omap24xx_idle_loop_suspend(void);
  58extern unsigned int omap24xx_idle_loop_suspend_sz;
  59
  60extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
  61                                        void __iomem *sdrc_power);
  62extern unsigned int omap24xx_cpu_suspend_sz;
  63
  64/* 3xxx */
  65extern void omap34xx_cpu_suspend(int save_state);
  66
  67/* omap3_do_wfi function pointer and size, for copy to SRAM */
  68extern void omap3_do_wfi(void);
  69extern unsigned int omap3_do_wfi_sz;
  70/* ... and its pointer from SRAM after copy */
  71extern void (*omap3_do_wfi_sram)(void);
  72
  73/* save_secure_ram_context function pointer and size, for copy to SRAM */
  74extern int save_secure_ram_context(u32 *addr);
  75extern unsigned int save_secure_ram_context_sz;
  76
  77extern void omap3_save_scratchpad_contents(void);
  78
  79#define PM_RTA_ERRATUM_i608             (1 << 0)
  80#define PM_SDRC_WAKEUP_ERRATUM_i583     (1 << 1)
  81
  82#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
  83extern u16 pm34xx_errata;
  84#define IS_PM34XX_ERRATUM(id)           (pm34xx_errata & (id))
  85extern void enable_omap3630_toggle_l2_on_restore(void);
  86#else
  87#define IS_PM34XX_ERRATUM(id)           0
  88static inline void enable_omap3630_toggle_l2_on_restore(void) { }
  89#endif          /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
  90
  91#ifdef CONFIG_OMAP_SMARTREFLEX
  92extern int omap_devinit_smartreflex(void);
  93extern void omap_enable_smartreflex_on_init(void);
  94#else
  95static inline int omap_devinit_smartreflex(void)
  96{
  97        return -EINVAL;
  98}
  99
 100static inline void omap_enable_smartreflex_on_init(void) {}
 101#endif
 102
 103#ifdef CONFIG_TWL4030_CORE
 104extern int omap3_twl_init(void);
 105extern int omap4_twl_init(void);
 106extern int omap3_twl_set_sr_bit(bool enable);
 107#else
 108static inline int omap3_twl_init(void)
 109{
 110        return -EINVAL;
 111}
 112static inline int omap4_twl_init(void)
 113{
 114        return -EINVAL;
 115}
 116#endif
 117
 118#endif
 119