1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (c) 2016 Maxime Ripard. All rights reserved.
4  */
5 
6 #ifndef _CCU_FRAC_H_
7 #define _CCU_FRAC_H_
8 
9 #include "ccu.h"
10 #include "ccu_common.h"
11 
12 struct ccu_frac_internal
13 {
14     u32     enable;
15     u32     select;
16 
17     unsigned long   rates[2];
18 };
19 
20 #define _SUNXI_CCU_FRAC(_enable, _select, _rate1, _rate2)       \
21     {                               \
22         .enable = _enable,                  \
23                   .select = _select,                  \
24                             .rates = { _rate1, _rate2 },                \
25     }
26 
27 bool ccu_frac_helper_is_enabled(struct ccu_common *common,
28                                 struct ccu_frac_internal *cf);
29 void ccu_frac_helper_enable(struct ccu_common *common,
30                             struct ccu_frac_internal *cf);
31 void ccu_frac_helper_disable(struct ccu_common *common,
32                              struct ccu_frac_internal *cf);
33 
34 bool ccu_frac_helper_has_rate(struct ccu_common *common,
35                               struct ccu_frac_internal *cf,
36                               unsigned long rate);
37 
38 unsigned long ccu_frac_helper_read_rate(struct ccu_common *common,
39                                         struct ccu_frac_internal *cf);
40 
41 int ccu_frac_helper_set_rate(struct ccu_common *common,
42                              struct ccu_frac_internal *cf,
43                              unsigned long rate, u32 lock);
44 
45 #endif /* _CCU_FRAC_H_ */
46