include/linux/pwrseq/consumer.h

   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
  29 pwrseq_get(struct device *dev, const char *target)
  30 {
  31         return ERR_PTR(-ENOSYS);
  32 }
  33
  34 static inline void pwrseq_put(struct pwrseq_desc *desc)
  35 {
  36 }
  37
  38 static inline struct pwrseq_desc * __must_check
  39 devm_pwrseq_get(struct device *dev, const char *target)
  40 {
  41         return ERR_PTR(-ENOSYS);
  42 }
  43
  44 static inline int pwrseq_power_on(struct pwrseq_desc *desc)
  45 {
  46         return -ENOSYS;
  47 }
  48
  49 static 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__ */