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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2013 Samsung Electronics Co., Ltd.
* Tomasz Figa <[email protected]>
* Copyright (c) 2004 Simtec Electronics
* http://armlinux.simtec.co.uk/
* Written by Ben Dooks, <[email protected]>
*/
#ifndef __LINUX_SOC_SAMSUNG_S3C_PM_H
#define __LINUX_SOC_SAMSUNG_S3C_PM_H __FILE__
#include <linux/types.h>
/* PM debug functions */
/**
* struct pm_uart_save - save block for core UART
* @ulcon: Save value for S3C2410_ULCON
* @ucon: Save value for S3C2410_UCON
* @ufcon: Save value for S3C2410_UFCON
* @umcon: Save value for S3C2410_UMCON
* @ubrdiv: Save value for S3C2410_UBRDIV
*
* Save block for UART registers to be held over sleep and restored if they
* are needed (say by debug).
*/
struct pm_uart_save {
u32 ulcon;
u32 ucon;
u32 ufcon;
u32 umcon;
u32 ubrdiv;
u32 udivslot;
};
#ifdef CONFIG_SAMSUNG_PM_DEBUG
/**
* s3c_pm_dbg() - low level debug function for use in suspend/resume.
* @msg: The message to print.
*
* This function is used mainly to debug the resume process before the system
* can rely on printk/console output. It uses the low-level debugging output
* routine printascii() to do its work.
*/
extern void s3c_pm_dbg(const char *msg, ...);
#define S3C_PMDBG(fmt...) s3c_pm_dbg(fmt)
extern void s3c_pm_save_uarts(bool is_s3c24xx);
extern void s3c_pm_restore_uarts(bool is_s3c24xx);
#ifdef CONFIG_ARCH_S3C64XX
extern void s3c_pm_arch_update_uart(void __iomem *regs,
struct pm_uart_save *save);
#else
static inline void
s3c_pm_arch_update_uart(void __iomem *regs, struct pm_uart_save *save)
{
}
#endif
#else
#define S3C_PMDBG(fmt...) pr_debug(fmt)
static inline void s3c_pm_save_uarts(bool is_s3c24xx) { }
static inline void s3c_pm_restore_uarts(bool is_s3c24xx) { }
#endif
/* suspend memory checking */
#ifdef CONFIG_SAMSUNG_PM_CHECK
extern void s3c_pm_check_prepare(void);
extern void s3c_pm_check_restore(void);
extern void s3c_pm_check_cleanup(void);
extern void s3c_pm_check_store(void);
#else
#define s3c_pm_check_prepare() do { } while (0)
#define s3c_pm_check_restore() do { } while (0)
#define s3c_pm_check_cleanup() do { } while (0)
#define s3c_pm_check_store() do { } while (0)
#endif
/* system device subsystems */
extern struct bus_type s3c2410_subsys;
extern struct bus_type s3c2410a_subsys;
extern struct bus_type s3c2412_subsys;
extern struct bus_type s3c2416_subsys;
extern struct bus_type s3c2440_subsys;
extern struct bus_type s3c2442_subsys;
extern struct bus_type s3c2443_subsys;
#endif