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 extern void *omap3_secure_ram_storage;
  19 extern void omap3_pm_off_mode_enable(int);
  20 extern void omap_sram_idle(void);
  21 extern int omap3_can_sleep(void);
  22 extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
  23 extern int omap3_idle_init(void);
  24
  25 #if defined(CONFIG_PM_OPP)
  26 extern int omap3_opp_init(void);
  27 extern int omap4_opp_init(void);
  28 #else
  29 static inline int omap3_opp_init(void)
  30 {
  31         return -EINVAL;
  32 }
  33 static inline int omap4_opp_init(void)
  34 {
  35         return -EINVAL;
  36 }
  37 #endif
  38
  39 struct 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)
  47 extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params);
  48 #else
  49 static
  50 inline void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params)
  51 {
  52 }
  53 #endif
  54
  55 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
  56 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
  57
  58 extern u32 wakeup_timer_seconds;
  59 extern u32 wakeup_timer_milliseconds;
  60 extern struct omap_dm_timer *gptimer_wakeup;
  61
  62 #ifdef CONFIG_PM_DEBUG
  63 extern void omap2_pm_dump(int mode, int resume, unsigned int us);
  64 extern void omap2_pm_wakeup_on_timer(u32 seconds, u32 milliseconds);
  65 extern int omap2_pm_debug;
  66 extern u32 enable_off_mode;
  67 extern 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)
  77 extern void omap3_cpuidle_update_states(u32, u32);
  78 #endif
  79
  80 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
  81 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
  82 extern int pm_dbg_regset_save(int reg_set);
  83 extern 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
  90 extern void omap24xx_idle_loop_suspend(void);
  91
  92 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
  93                                         void __iomem *sdrc_power);
  94 extern void omap34xx_cpu_suspend(u32 *addr, int save_state);
  95 extern void save_secure_ram_context(u32 *addr);
  96 extern void omap3_save_scratchpad_contents(void);
  97
  98 extern unsigned int omap24xx_idle_loop_suspend_sz;
  99 extern unsigned int save_secure_ram_context_sz;
 100 extern unsigned int omap24xx_cpu_suspend_sz;
 101 extern 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)
 107 extern u16 pm34xx_errata;
 108 #define IS_PM34XX_ERRATUM(id)           (pm34xx_errata & (id))
 109 extern void enable_omap3630_toggle_l2_on_restore(void);
 110 #else
 111 #define IS_PM34XX_ERRATUM(id)           0
 112 static inline void enable_omap3630_toggle_l2_on_restore(void) { }
 113 #endif          /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
 114
 115 #ifdef CONFIG_OMAP_SMARTREFLEX
 116 extern int omap_devinit_smartreflex(void);
 117 extern void omap_enable_smartreflex_on_init(void);
 118 #else
 119 static inline int omap_devinit_smartreflex(void)
 120 {
 121         return -EINVAL;
 122 }
 123
 124 static inline void omap_enable_smartreflex_on_init(void) {}
 125 #endif
 126
 127 #ifdef CONFIG_TWL4030_CORE
 128 extern int omap3_twl_init(void);
 129 extern int omap4_twl_init(void);
 130 #else
 131 static inline int omap3_twl_init(void)
 132 {
 133         return -EINVAL;
 134 }
 135 static inline int omap4_twl_init(void)
 136 {
 137         return -EINVAL;
 138 }
 139 #endif
 140
 141 #endif