1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2013 Samsung Electronics Co., Ltd. 4*4882a593Smuzhiyun * Tomasz Figa <t.figa@samsung.com> 5*4882a593Smuzhiyun * Copyright (c) 2004 Simtec Electronics 6*4882a593Smuzhiyun * http://armlinux.simtec.co.uk/ 7*4882a593Smuzhiyun * Written by Ben Dooks, <ben@simtec.co.uk> 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef __LINUX_SOC_SAMSUNG_S3C_PM_H 11*4882a593Smuzhiyun #define __LINUX_SOC_SAMSUNG_S3C_PM_H __FILE__ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <linux/types.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* PM debug functions */ 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /** 18*4882a593Smuzhiyun * struct pm_uart_save - save block for core UART 19*4882a593Smuzhiyun * @ulcon: Save value for S3C2410_ULCON 20*4882a593Smuzhiyun * @ucon: Save value for S3C2410_UCON 21*4882a593Smuzhiyun * @ufcon: Save value for S3C2410_UFCON 22*4882a593Smuzhiyun * @umcon: Save value for S3C2410_UMCON 23*4882a593Smuzhiyun * @ubrdiv: Save value for S3C2410_UBRDIV 24*4882a593Smuzhiyun * 25*4882a593Smuzhiyun * Save block for UART registers to be held over sleep and restored if they 26*4882a593Smuzhiyun * are needed (say by debug). 27*4882a593Smuzhiyun */ 28*4882a593Smuzhiyun struct pm_uart_save { 29*4882a593Smuzhiyun u32 ulcon; 30*4882a593Smuzhiyun u32 ucon; 31*4882a593Smuzhiyun u32 ufcon; 32*4882a593Smuzhiyun u32 umcon; 33*4882a593Smuzhiyun u32 ubrdiv; 34*4882a593Smuzhiyun u32 udivslot; 35*4882a593Smuzhiyun }; 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun #ifdef CONFIG_SAMSUNG_PM_DEBUG 38*4882a593Smuzhiyun /** 39*4882a593Smuzhiyun * s3c_pm_dbg() - low level debug function for use in suspend/resume. 40*4882a593Smuzhiyun * @msg: The message to print. 41*4882a593Smuzhiyun * 42*4882a593Smuzhiyun * This function is used mainly to debug the resume process before the system 43*4882a593Smuzhiyun * can rely on printk/console output. It uses the low-level debugging output 44*4882a593Smuzhiyun * routine printascii() to do its work. 45*4882a593Smuzhiyun */ 46*4882a593Smuzhiyun extern void s3c_pm_dbg(const char *msg, ...); 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun #define S3C_PMDBG(fmt...) s3c_pm_dbg(fmt) 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun extern void s3c_pm_save_uarts(bool is_s3c24xx); 51*4882a593Smuzhiyun extern void s3c_pm_restore_uarts(bool is_s3c24xx); 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun #ifdef CONFIG_ARCH_S3C64XX 54*4882a593Smuzhiyun extern void s3c_pm_arch_update_uart(void __iomem *regs, 55*4882a593Smuzhiyun struct pm_uart_save *save); 56*4882a593Smuzhiyun #else 57*4882a593Smuzhiyun static inline void s3c_pm_arch_update_uart(void __iomem * regs,struct pm_uart_save * save)58*4882a593Smuzhiyuns3c_pm_arch_update_uart(void __iomem *regs, struct pm_uart_save *save) 59*4882a593Smuzhiyun { 60*4882a593Smuzhiyun } 61*4882a593Smuzhiyun #endif 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun #else 64*4882a593Smuzhiyun #define S3C_PMDBG(fmt...) pr_debug(fmt) 65*4882a593Smuzhiyun s3c_pm_save_uarts(bool is_s3c24xx)66*4882a593Smuzhiyunstatic inline void s3c_pm_save_uarts(bool is_s3c24xx) { } s3c_pm_restore_uarts(bool is_s3c24xx)67*4882a593Smuzhiyunstatic inline void s3c_pm_restore_uarts(bool is_s3c24xx) { } 68*4882a593Smuzhiyun #endif 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun /* suspend memory checking */ 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun #ifdef CONFIG_SAMSUNG_PM_CHECK 73*4882a593Smuzhiyun extern void s3c_pm_check_prepare(void); 74*4882a593Smuzhiyun extern void s3c_pm_check_restore(void); 75*4882a593Smuzhiyun extern void s3c_pm_check_cleanup(void); 76*4882a593Smuzhiyun extern void s3c_pm_check_store(void); 77*4882a593Smuzhiyun #else 78*4882a593Smuzhiyun #define s3c_pm_check_prepare() do { } while (0) 79*4882a593Smuzhiyun #define s3c_pm_check_restore() do { } while (0) 80*4882a593Smuzhiyun #define s3c_pm_check_cleanup() do { } while (0) 81*4882a593Smuzhiyun #define s3c_pm_check_store() do { } while (0) 82*4882a593Smuzhiyun #endif 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun /* system device subsystems */ 85*4882a593Smuzhiyun 86*4882a593Smuzhiyun extern struct bus_type s3c2410_subsys; 87*4882a593Smuzhiyun extern struct bus_type s3c2410a_subsys; 88*4882a593Smuzhiyun extern struct bus_type s3c2412_subsys; 89*4882a593Smuzhiyun extern struct bus_type s3c2416_subsys; 90*4882a593Smuzhiyun extern struct bus_type s3c2440_subsys; 91*4882a593Smuzhiyun extern struct bus_type s3c2442_subsys; 92*4882a593Smuzhiyun extern struct bus_type s3c2443_subsys; 93*4882a593Smuzhiyun 94*4882a593Smuzhiyun #endif 95