1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (c) 2018-2019, Linaro Ltd.
7 #ifndef __LINUX_INTERCONNECT_H
8 #define __LINUX_INTERCONNECT_H
10 #include <linux/mutex.h>
11 #include <linux/types.h>
13 /* macros for converting to icc units */
14 #define Bps_to_icc(x) ((x) / 1000)
15 #define kBps_to_icc(x) (x)
16 #define MBps_to_icc(x) ((x) * 1000)
17 #define GBps_to_icc(x) ((x) * 1000 * 1000)
18 #define bps_to_icc(x) (1)
19 #define kbps_to_icc(x) ((x) / 8 + ((x) % 8 ? 1 : 0))
20 #define Mbps_to_icc(x) ((x) * 1000 / 8)
21 #define Gbps_to_icc(x) ((x) * 1000 * 1000 / 8)
26 #if IS_ENABLED(CONFIG_INTERCONNECT)
28 struct icc_path *icc_get(struct device *dev, const int src_id,
30 struct icc_path *of_icc_get(struct device *dev, const char *name);
31 struct icc_path *devm_of_icc_get(struct device *dev, const char *name);
32 struct icc_path *of_icc_get_by_index(struct device *dev, int idx);
33 void icc_put(struct icc_path *path);
34 int icc_enable(struct icc_path *path);
35 int icc_disable(struct icc_path *path);
36 int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw);
37 void icc_set_tag(struct icc_path *path, u32 tag);
41 static inline struct icc_path *icc_get(struct device *dev, const int src_id,
47 static inline struct icc_path *of_icc_get(struct device *dev,
53 static inline struct icc_path *devm_of_icc_get(struct device *dev,
59 static inline struct icc_path *of_icc_get_by_index(struct device *dev, int idx)
64 static inline void icc_put(struct icc_path *path)
68 static inline int icc_enable(struct icc_path *path)
73 static inline int icc_disable(struct icc_path *path)
78 static inline int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
83 static inline void icc_set_tag(struct icc_path *path, u32 tag)
87 #endif /* CONFIG_INTERCONNECT */
89 #endif /* __LINUX_INTERCONNECT_H */