pm.h (4298B)
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 16extern int __init omap3_idle_init(void); 17extern int __init omap4_idle_init(void); 18#else 19static inline int omap3_idle_init(void) 20{ 21 return 0; 22} 23 24static inline int omap4_idle_init(void) 25{ 26 return 0; 27} 28#endif 29 30extern void *omap3_secure_ram_storage; 31extern void omap3_pm_off_mode_enable(int); 32extern void omap_sram_idle(void); 33extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused); 34 35#if defined(CONFIG_PM_OPP) 36extern int omap3_opp_init(void); 37extern int omap4_opp_init(void); 38#else 39static inline int omap3_opp_init(void) 40{ 41 return -EINVAL; 42} 43static inline int omap4_opp_init(void) 44{ 45 return -EINVAL; 46} 47#endif 48 49extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm); 50extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state); 51 52extern u32 enable_off_mode; 53 54#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) 55extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); 56#else 57#define pm_dbg_update_time(pwrdm, prev) do {} while (0); 58#endif /* CONFIG_PM_DEBUG */ 59 60/* 24xx */ 61extern void omap24xx_idle_loop_suspend(void); 62extern unsigned int omap24xx_idle_loop_suspend_sz; 63 64extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, 65 void __iomem *sdrc_power); 66extern unsigned int omap24xx_cpu_suspend_sz; 67 68/* 3xxx */ 69extern void omap34xx_cpu_suspend(int save_state); 70 71/* omap3_do_wfi function pointer and size, for copy to SRAM */ 72extern void omap3_do_wfi(void); 73extern unsigned int omap3_do_wfi_sz; 74/* ... and its pointer from SRAM after copy */ 75extern void (*omap3_do_wfi_sram)(void); 76 77extern struct am33xx_pm_sram_addr am33xx_pm_sram; 78extern struct am33xx_pm_sram_addr am43xx_pm_sram; 79 80extern void omap3_save_scratchpad_contents(void); 81 82#define PM_RTA_ERRATUM_i608 (1 << 0) 83#define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1) 84#define PM_PER_MEMORIES_ERRATUM_i582 (1 << 2) 85 86#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) 87extern u16 pm34xx_errata; 88#define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id)) 89extern void enable_omap3630_toggle_l2_on_restore(void); 90#else 91#define IS_PM34XX_ERRATUM(id) 0 92static inline void enable_omap3630_toggle_l2_on_restore(void) { } 93#endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */ 94 95#define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD (1 << 0) 96#define PM_OMAP4_CPU_OSWR_DISABLE (1 << 1) 97 98#if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) ||\ 99 defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)) 100extern u16 pm44xx_errata; 101#define IS_PM44XX_ERRATUM(id) (pm44xx_errata & (id)) 102#else 103#define IS_PM44XX_ERRATUM(id) 0 104#endif 105 106#define OMAP4_VP_CONFIG_ERROROFFSET 0x00 107#define OMAP4_VP_VSTEPMIN_VSTEPMIN 0x01 108#define OMAP4_VP_VSTEPMAX_VSTEPMAX 0x04 109#define OMAP4_VP_VLIMITTO_TIMEOUT_US 200 110 111#ifdef CONFIG_POWER_AVS_OMAP 112extern int omap_devinit_smartreflex(void); 113extern void omap_enable_smartreflex_on_init(void); 114#else 115static inline int omap_devinit_smartreflex(void) 116{ 117 return -EINVAL; 118} 119 120static inline void omap_enable_smartreflex_on_init(void) {} 121#endif 122 123#ifdef CONFIG_TWL4030_CORE 124extern int omap3_twl_init(void); 125extern int omap4_twl_init(void); 126extern int omap3_twl_set_sr_bit(bool enable); 127#else 128static inline int omap3_twl_init(void) 129{ 130 return -EINVAL; 131} 132static inline int omap4_twl_init(void) 133{ 134 return -EINVAL; 135} 136#endif 137 138#if IS_ENABLED(CONFIG_MFD_CPCAP) 139extern int omap4_cpcap_init(void); 140#else 141static inline int omap4_cpcap_init(void) 142{ 143 return -EINVAL; 144} 145#endif 146 147#ifdef CONFIG_PM 148extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut); 149extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut); 150extern void omap_pm_setup_sr_i2c_pcb_length(u32 mm); 151#else 152static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { } 153static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; } 154static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { } 155#endif 156 157#ifdef CONFIG_SUSPEND 158void omap_common_suspend_init(void *pm_suspend); 159#else 160static inline void omap_common_suspend_init(void *pm_suspend) 161{ 162} 163#endif /* CONFIG_SUSPEND */ 164#endif