arch/arm/mach-omap2/pm.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * OMAP2/3 Power Management Routines
   4  *
   5  * Copyright (C) 2008 Nokia Corporation
   6  * Jouni Hogander
   7  */
   8 #ifndef __ARCH_ARM_MACH_OMAP2_PM_H
   9 #define __ARCH_ARM_MACH_OMAP2_PM_H
  10
  11 #include <linux/err.h>
  12
  13 #include "powerdomain.h"
  14
  15 #ifdef CONFIG_CPU_IDLE
  16 extern int __init omap3_idle_init(void);
  17 extern int __init omap4_idle_init(void);
  18 #else
  19 static inline int omap3_idle_init(void)
  20 {
  21         return 0;
  22 }
  23
  24 static inline int omap4_idle_init(void)
  25 {
  26         return 0;
  27 }
  28 #endif
  29
  30 extern void *omap3_secure_ram_storage;
  31 extern void omap3_pm_off_mode_enable(int);
  32 extern void omap_sram_idle(void);
  33 extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused);
  34
  35 #if defined(CONFIG_PM_OPP)
  36 extern int omap3_opp_init(void);
  37 extern int omap4_opp_init(void);
  38 #else
  39 static inline int omap3_opp_init(void)
  40 {
  41         return -EINVAL;
  42 }
  43 static inline int omap4_opp_init(void)
  44 {
  45         return -EINVAL;
  46 }
  47 #endif
  48
  49 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
  50 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
  51
  52 #ifdef CONFIG_PM_DEBUG
  53 extern u32 enable_off_mode;
  54 #else
  55 #define enable_off_mode 0
  56 #endif
  57
  58 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
  59 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
  60 #else
  61 #define pm_dbg_update_time(pwrdm, prev) do {} while (0);
  62 #endif /* CONFIG_PM_DEBUG */
  63
  64 /* 24xx */
  65 extern void omap24xx_idle_loop_suspend(void);
  66 extern unsigned int omap24xx_idle_loop_suspend_sz;
  67
  68 extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
  69                                         void __iomem *sdrc_power);
  70 extern unsigned int omap24xx_cpu_suspend_sz;
  71
  72 /* 3xxx */
  73 extern void omap34xx_cpu_suspend(int save_state);
  74
  75 /* omap3_do_wfi function pointer and size, for copy to SRAM */
  76 extern void omap3_do_wfi(void);
  77 extern unsigned int omap3_do_wfi_sz;
  78 /* ... and its pointer from SRAM after copy */
  79 extern void (*omap3_do_wfi_sram)(void);
  80
  81 extern struct am33xx_pm_sram_addr am33xx_pm_sram;
  82 extern struct am33xx_pm_sram_addr am43xx_pm_sram;
  83
  84 extern void omap3_save_scratchpad_contents(void);
  85
  86 #define PM_RTA_ERRATUM_i608             (1 << 0)
  87 #define PM_SDRC_WAKEUP_ERRATUM_i583     (1 << 1)
  88 #define PM_PER_MEMORIES_ERRATUM_i582    (1 << 2)
  89
  90 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
  91 extern u16 pm34xx_errata;
  92 #define IS_PM34XX_ERRATUM(id)           (pm34xx_errata & (id))
  93 extern void enable_omap3630_toggle_l2_on_restore(void);
  94 #else
  95 #define IS_PM34XX_ERRATUM(id)           0
  96 static inline void enable_omap3630_toggle_l2_on_restore(void) { }
  97 #endif          /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
  98
  99 #define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD      (1 << 0)
 100 #define PM_OMAP4_CPU_OSWR_DISABLE               (1 << 1)
 101
 102 #if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) ||\
 103            defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX))
 104 extern u16 pm44xx_errata;
 105 #define IS_PM44XX_ERRATUM(id)           (pm44xx_errata & (id))
 106 #else
 107 #define IS_PM44XX_ERRATUM(id)           0
 108 #endif
 109
 110 #define OMAP4_VP_CONFIG_ERROROFFSET     0x00
 111 #define OMAP4_VP_VSTEPMIN_VSTEPMIN      0x01
 112 #define OMAP4_VP_VSTEPMAX_VSTEPMAX      0x04
 113 #define OMAP4_VP_VLIMITTO_TIMEOUT_US    200
 114
 115 #ifdef CONFIG_POWER_AVS_OMAP
 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 extern int omap3_twl_set_sr_bit(bool enable);
 131 #else
 132 static inline int omap3_twl_init(void)
 133 {
 134         return -EINVAL;
 135 }
 136 static inline int omap4_twl_init(void)
 137 {
 138         return -EINVAL;
 139 }
 140 #endif
 141
 142 #if IS_ENABLED(CONFIG_MFD_CPCAP)
 143 extern int omap4_cpcap_init(void);
 144 #else
 145 static inline int omap4_cpcap_init(void)
 146 {
 147         return -EINVAL;
 148 }
 149 #endif
 150
 151 #ifdef CONFIG_PM
 152 extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut);
 153 extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut);
 154 extern void omap_pm_setup_sr_i2c_pcb_length(u32 mm);
 155 #else
 156 static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { }
 157 static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; }
 158 static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { }
 159 #endif
 160
 161 #ifdef CONFIG_SUSPEND
 162 void omap_common_suspend_init(void *pm_suspend);
 163 #else
 164 static inline void omap_common_suspend_init(void *pm_suspend)
 165 {
 166 }
 167 #endif /* CONFIG_SUSPEND */
 168 #endif