1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2024 Linaro Ltd. 4 */ 5 6 #ifndef __POWER_SEQUENCING_CONSUMER_H__ 7 #define __POWER_SEQUENCING_CONSUMER_H__ 8 9 #include <linux/err.h> 10 11 struct device; 12 struct pwrseq_desc; 13 14 #if IS_ENABLED(CONFIG_POWER_SEQUENCING) 15 16 struct pwrseq_desc * __must_check 17 pwrseq_get(struct device *dev, const char *target); 18 void pwrseq_put(struct pwrseq_desc *desc); 19 20 struct pwrseq_desc * __must_check 21 devm_pwrseq_get(struct device *dev, const char *target); 22 23 int pwrseq_power_on(struct pwrseq_desc *desc); 24 int pwrseq_power_off(struct pwrseq_desc *desc); 25 26 #else /* CONFIG_POWER_SEQUENCING */ 27 28 static inline struct pwrseq_desc * __must_check pwrseq_get(struct device * dev,const char * target)29pwrseq_get(struct device *dev, const char *target) 30 { 31 return ERR_PTR(-ENOSYS); 32 } 33 pwrseq_put(struct pwrseq_desc * desc)34static inline void pwrseq_put(struct pwrseq_desc *desc) 35 { 36 } 37 38 static inline struct pwrseq_desc * __must_check devm_pwrseq_get(struct device * dev,const char * target)39devm_pwrseq_get(struct device *dev, const char *target) 40 { 41 return ERR_PTR(-ENOSYS); 42 } 43 pwrseq_power_on(struct pwrseq_desc * desc)44static inline int pwrseq_power_on(struct pwrseq_desc *desc) 45 { 46 return -ENOSYS; 47 } 48 pwrseq_power_off(struct pwrseq_desc * desc)49static inline int pwrseq_power_off(struct pwrseq_desc *desc) 50 { 51 return -ENOSYS; 52 } 53 54 #endif /* CONFIG_POWER_SEQUENCING */ 55 56 #endif /* __POWER_SEQUENCING_CONSUMER_H__ */ 57