1 #ifndef __ASM_ARM_CPUIDLE_H 2 #define __ASM_ARM_CPUIDLE_H 3 4 #ifdef CONFIG_CPU_IDLE 5 extern int arm_cpuidle_simple_enter(struct cpuidle_device *dev, 6 struct cpuidle_driver *drv, int index); 7 #else 8 static inline int arm_cpuidle_simple_enter(struct cpuidle_device *dev, 9 struct cpuidle_driver *drv, int index) { return -ENODEV; } 10 #endif 11 12 /* Common ARM WFI state */ 13 #define ARM_CPUIDLE_WFI_STATE_PWR(p) {\ 14 .enter = arm_cpuidle_simple_enter,\ 15 .exit_latency = 1,\ 16 .target_residency = 1,\ 17 .power_usage = p,\ 18 .flags = CPUIDLE_FLAG_TIME_VALID,\ 19 .name = "WFI",\ 20 .desc = "ARM WFI",\ 21 } 22 23 /* 24 * in case power_specified == 1, give a default WFI power value needed 25 * by some governors 26 */ 27 #define ARM_CPUIDLE_WFI_STATE ARM_CPUIDLE_WFI_STATE_PWR(UINT_MAX) 28 29 #endif 30