diff options
Diffstat (limited to 'arch/arm/plat-s3c/include')
| -rw-r--r-- | arch/arm/plat-s3c/include/plat/pm.h | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/arch/arm/plat-s3c/include/plat/pm.h b/arch/arm/plat-s3c/include/plat/pm.h index cc623667e48..a1520997ab8 100644 --- a/arch/arm/plat-s3c/include/plat/pm.h +++ b/arch/arm/plat-s3c/include/plat/pm.h @@ -1,6 +1,7 @@ /* linux/include/asm-arm/plat-s3c24xx/pm.h * * Copyright (c) 2004 Simtec Electronics + * http://armlinux.simtec.co.uk/ * Written by Ben Dooks, <ben@simtec.co.uk> * * This program is free software; you can redistribute it and/or modify @@ -49,10 +50,18 @@ extern int s3c2410_cpu_save(unsigned long *saveblk); extern void s3c2410_cpu_suspend(void); extern void s3c2410_cpu_resume(void); -extern unsigned long s3c2410_sleep_save_phys; +extern unsigned long s3c_sleep_save_phys; /* sleep save info */ +/** + * struct sleep_save - save information for shared peripherals. + * @reg: Pointer to the register to save. + * @val: Holder for the value saved from reg. + * + * This describes a list of registers which is used by the pm core and + * other subsystem to save and restore register values over suspend. + */ struct sleep_save { void __iomem *reg; unsigned long val; @@ -61,8 +70,11 @@ struct sleep_save { #define SAVE_ITEM(x) \ { .reg = (x) } -extern void s3c2410_pm_do_save(struct sleep_save *ptr, int count); -extern void s3c2410_pm_do_restore(struct sleep_save *ptr, int count); +/* helper functions to save/restore lists of registers. */ + +extern void s3c_pm_do_save(struct sleep_save *ptr, int count); +extern void s3c_pm_do_restore(struct sleep_save *ptr, int count); +extern void s3c_pm_do_restore_core(struct sleep_save *ptr, int count); #ifdef CONFIG_PM extern int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state); @@ -71,3 +83,21 @@ extern int s3c24xx_irq_resume(struct sys_device *dev); #define s3c24xx_irq_suspend NULL #define s3c24xx_irq_resume NULL #endif + +/* PM debug functions */ + +#ifdef CONFIG_S3C2410_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) +#else +#define S3C_PMDBG(fmt...) printk(KERN_DEBUG fmt) +#endif |