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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2004 Simtec Electronics * http://armlinux.simtec.co.uk/ * Written by Ben Dooks, <ben@simtec.co.uk> */ /* s3c_pm_init * * called from board at initialisation time to setup the power * management */ #include <plat/pm-common.h> struct device; #ifdef CONFIG_SAMSUNG_PM extern __init int s3c_pm_init(void); extern __init int s3c64xx_pm_init(void); #else static inline int s3c_pm_init(void) { return 0; } static inline int s3c64xx_pm_init(void) { return 0; } #endif /* configuration for the IRQ mask over sleep */ extern unsigned long s3c_irqwake_intmask; extern unsigned long s3c_irqwake_eintmask; /* per-cpu sleep functions */ extern void (*pm_cpu_prep)(void); extern int (*pm_cpu_sleep)(unsigned long); /* Flags for PM Control */ extern unsigned long s3c_pm_flags; /* from sleep.S */ extern int s3c2410_cpu_suspend(unsigned long); #ifdef CONFIG_PM_SLEEP extern int s3c_irq_wake(struct irq_data *data, unsigned int state); extern void s3c_cpu_resume(void); #else #define s3c_irq_wake NULL #define s3c_cpu_resume NULL #endif #ifdef CONFIG_SAMSUNG_PM extern int s3c_irqext_wake(struct irq_data *data, unsigned int state); #else #define s3c_irqext_wake NULL #endif #ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK /** * s3c_pm_debug_smdkled() - Debug PM suspend/resume via SMDK Board LEDs * @set: set bits for the state of the LEDs * @clear: clear bits for the state of the LEDs. */ extern void s3c_pm_debug_smdkled(u32 set, u32 clear); #else static inline void s3c_pm_debug_smdkled(u32 set, u32 clear) { } #endif /* CONFIG_S3C_PM_DEBUG_LED_SMDK */ /** * s3c_pm_configure_extint() - ensure pins are correctly set for IRQ * * Setup all the necessary GPIO pins for waking the system on external * interrupt. */ extern void s3c_pm_configure_extint(void); #ifdef CONFIG_GPIO_SAMSUNG /** * samsung_pm_restore_gpios() - restore the state of the gpios after sleep. * * Restore the state of the GPIO pins after sleep, which may involve ensuring * that we do not glitch the state of the pins from that the bootloader's * resume code has done. */ extern void samsung_pm_restore_gpios(void); /** * samsung_pm_save_gpios() - save the state of the GPIOs for restoring after sleep. * * Save the GPIO states for resotration on resume. See samsung_pm_restore_gpios(). */ extern void samsung_pm_save_gpios(void); #else static inline void samsung_pm_restore_gpios(void) {} static inline void samsung_pm_save_gpios(void) {} #endif extern void s3c_pm_save_core(void); extern void s3c_pm_restore_core(void); |