1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (c) 2004 Simtec Electronics
4 * http://armlinux.simtec.co.uk/
10 * called from board at initialisation time to setup the power
14 #include "pm-common.h"
18 #ifdef CONFIG_SAMSUNG_PM
20 extern __init int s3c_pm_init(void);
21 extern __init int s3c64xx_pm_init(void);
25 static inline int s3c_pm_init(void)
30 static inline int s3c64xx_pm_init(void)
36 /* configuration for the IRQ mask over sleep */
37 extern unsigned long s3c_irqwake_intmask;
38 extern unsigned long s3c_irqwake_eintmask;
40 /* per-cpu sleep functions */
42 extern void (*pm_cpu_prep)(void);
43 extern int (*pm_cpu_sleep)(unsigned long);
45 /* Flags for PM Control */
47 extern unsigned long s3c_pm_flags;
51 extern int s3c2410_cpu_suspend(unsigned long);
53 #ifdef CONFIG_PM_SLEEP
54 extern int s3c_irq_wake(struct irq_data *data, unsigned int state);
55 extern void s3c_cpu_resume(void);
57 #define s3c_irq_wake NULL
58 #define s3c_cpu_resume NULL
61 #ifdef CONFIG_SAMSUNG_PM
62 extern int s3c_irqext_wake(struct irq_data *data, unsigned int state);
64 #define s3c_irqext_wake NULL
68 * s3c_pm_configure_extint() - ensure pins are correctly set for IRQ
70 * Setup all the necessary GPIO pins for waking the system on external
73 extern void s3c_pm_configure_extint(void);
75 #ifdef CONFIG_GPIO_SAMSUNG
77 * samsung_pm_restore_gpios() - restore the state of the gpios after sleep.
79 * Restore the state of the GPIO pins after sleep, which may involve ensuring
80 * that we do not glitch the state of the pins from that the bootloader's
81 * resume code has done.
83 extern void samsung_pm_restore_gpios(void);
86 * samsung_pm_save_gpios() - save the state of the GPIOs for restoring after sleep.
88 * Save the GPIO states for resotration on resume. See samsung_pm_restore_gpios().
90 extern void samsung_pm_save_gpios(void);
92 static inline void samsung_pm_restore_gpios(void) {}
93 static inline void samsung_pm_save_gpios(void) {}
96 extern void s3c_pm_save_core(void);
97 extern void s3c_pm_restore_core(void);