Release 4.11 arch/arm/include/asm/cpuidle.h

#ifndef __ASM_ARM_CPUIDLE_H

#define __ASM_ARM_CPUIDLE_H

#include <asm/proc-fns.h>

#ifdef CONFIG_CPU_IDLE
extern int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
		struct cpuidle_driver *drv, int index);
#else


static inline int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
		struct cpuidle_driver *drv, int index) { return -ENODEV; }
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#endif

/* Common ARM WFI state */

#define ARM_CPUIDLE_WFI_STATE_PWR(p) {\
        .enter                  = arm_cpuidle_simple_enter,\
        .exit_latency           = 1,\
        .target_residency       = 1,\
        .power_usage            = p,\
        .name                   = "WFI",\
        .desc                   = "ARM WFI",\
}

/*
 * in case power_specified == 1, give a default WFI power value needed
 * by some governors
 */

#define ARM_CPUIDLE_WFI_STATE ARM_CPUIDLE_WFI_STATE_PWR(UINT_MAX)

struct device_node;


struct cpuidle_ops {
	
int (*suspend)(unsigned long arg);
	
int (*init)(struct device_node *, int cpu);
};


struct of_cpuidle_method {
	
const char *method;
	
const struct cpuidle_ops *ops;
};


#define CPUIDLE_METHOD_OF_DECLARE(name, _method, _ops)			\
	static const struct of_cpuidle_method __cpuidle_method_of_table_##name \
        __used __section(__cpuidle_method_of_table)                     \
        = { .method = _method, .ops = _ops }

extern int arm_cpuidle_suspend(int index);

extern int arm_cpuidle_init(int cpu);

#endif
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Directory: arch/arm/include/asm

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