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