98 lines
2.1 KiB
C
98 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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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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/* s3c_pm_init
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*
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* called from board at initialisation time to setup the power
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* management
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*/
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#include "pm-common.h"
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struct device;
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#ifdef CONFIG_SAMSUNG_PM
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extern __init int s3c_pm_init(void);
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extern __init int s3c64xx_pm_init(void);
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#else
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static inline int s3c_pm_init(void)
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{
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return 0;
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}
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static inline int s3c64xx_pm_init(void)
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{
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return 0;
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}
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#endif
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/* configuration for the IRQ mask over sleep */
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extern unsigned long s3c_irqwake_intmask;
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extern unsigned long s3c_irqwake_eintmask;
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/* per-cpu sleep functions */
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extern void (*pm_cpu_prep)(void);
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extern int (*pm_cpu_sleep)(unsigned long);
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/* Flags for PM Control */
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extern unsigned long s3c_pm_flags;
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/* from sleep.S */
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extern int s3c2410_cpu_suspend(unsigned long);
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#ifdef CONFIG_PM_SLEEP
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extern int s3c_irq_wake(struct irq_data *data, unsigned int state);
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extern void s3c_cpu_resume(void);
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#else
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#define s3c_irq_wake NULL
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#define s3c_cpu_resume NULL
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#endif
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#ifdef CONFIG_SAMSUNG_PM
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extern int s3c_irqext_wake(struct irq_data *data, unsigned int state);
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#else
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#define s3c_irqext_wake NULL
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#endif
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/**
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* s3c_pm_configure_extint() - ensure pins are correctly set for IRQ
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*
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* Setup all the necessary GPIO pins for waking the system on external
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* interrupt.
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*/
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extern void s3c_pm_configure_extint(void);
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#ifdef CONFIG_GPIO_SAMSUNG
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/**
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* samsung_pm_restore_gpios() - restore the state of the gpios after sleep.
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*
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* Restore the state of the GPIO pins after sleep, which may involve ensuring
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* that we do not glitch the state of the pins from that the bootloader's
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* resume code has done.
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*/
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extern void samsung_pm_restore_gpios(void);
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/**
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* samsung_pm_save_gpios() - save the state of the GPIOs for restoring after sleep.
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*
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* Save the GPIO states for resotration on resume. See samsung_pm_restore_gpios().
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*/
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extern void samsung_pm_save_gpios(void);
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#else
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static inline void samsung_pm_restore_gpios(void) {}
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static inline void samsung_pm_save_gpios(void) {}
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#endif
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extern void s3c_pm_save_core(void);
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extern void s3c_pm_restore_core(void);
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