1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 /*
3 * Copyright (c) 2004 Simtec Electronics
4 * http://armlinux.simtec.co.uk/
5 * Written by Ben Dooks, <ben@simtec.co.u
6 */
7
8 /* s3c_pm_init
9 *
10 * called from board at initialisation time to
11 * management
12 */
13
14 #include "pm-common.h"
15
16 struct device;
17
18 #ifdef CONFIG_SAMSUNG_PM
19
20 extern __init int s3c_pm_init(void);
21 extern __init int s3c64xx_pm_init(void);
22
23 #else
24
25 static inline int s3c_pm_init(void)
26 {
27 return 0;
28 }
29
30 static inline int s3c64xx_pm_init(void)
31 {
32 return 0;
33 }
34 #endif
35
36 /* configuration for the IRQ mask over sleep *
37 extern unsigned long s3c_irqwake_intmask;
38 extern unsigned long s3c_irqwake_eintmask;
39
40 /* per-cpu sleep functions */
41
42 extern void (*pm_cpu_prep)(void);
43 extern int (*pm_cpu_sleep)(unsigned long);
44
45 /* Flags for PM Control */
46
47 extern unsigned long s3c_pm_flags;
48
49 /* from sleep.S */
50
51 #ifdef CONFIG_PM_SLEEP
52 extern int s3c_irq_wake(struct irq_data *data,
53 extern void s3c_cpu_resume(void);
54 #else
55 #define s3c_irq_wake NULL
56 #define s3c_cpu_resume NULL
57 #endif
58
59 #ifdef CONFIG_SAMSUNG_PM
60 extern int s3c_irqext_wake(struct irq_data *da
61 #else
62 #define s3c_irqext_wake NULL
63 #endif
64
65 /**
66 * s3c_pm_configure_extint() - ensure pins are
67 *
68 * Setup all the necessary GPIO pins for wakin
69 * interrupt.
70 */
71 extern void s3c_pm_configure_extint(void);
72
73 #ifdef CONFIG_GPIO_SAMSUNG
74 /**
75 * samsung_pm_restore_gpios() - restore the st
76 *
77 * Restore the state of the GPIO pins after sl
78 * that we do not glitch the state of the pins
79 * resume code has done.
80 */
81 extern void samsung_pm_restore_gpios(void);
82
83 /**
84 * samsung_pm_save_gpios() - save the state of
85 *
86 * Save the GPIO states for resotration on res
87 */
88 extern void samsung_pm_save_gpios(void);
89 #else
90 static inline void samsung_pm_restore_gpios(vo
91 static inline void samsung_pm_save_gpios(void)
92 #endif
93
94 extern void s3c_pm_save_core(void);
95 extern void s3c_pm_restore_core(void);
96
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