]>
Commit | Line | Data |
---|---|---|
f26c8a8e SG |
1 | /* |
2 | * Copyright (c) 2015 Google, Inc | |
3 | * Written by Simon Glass <sjg@chromium.org> | |
4 | * | |
5 | * SPDX-License-Identifier: GPL-2.0+ | |
6 | */ | |
7 | ||
08d0d6f3 MS |
8 | #ifndef _CLK_H_ |
9 | #define _CLK_H_ | |
10 | ||
11 | int soc_clk_dump(void); | |
12 | ||
f26c8a8e SG |
13 | struct clk_ops { |
14 | /** | |
15 | * get_rate() - Get current clock rate | |
16 | * | |
17 | * @dev: Device to check (UCLASS_CLK) | |
18 | * @return clock rate in Hz, or -ve error code | |
19 | */ | |
20 | ulong (*get_rate)(struct udevice *dev); | |
21 | ||
22 | /** | |
23 | * set_rate() - Set current clock rate | |
24 | * | |
25 | * @dev: Device to adjust | |
26 | * @rate: New clock rate in Hz | |
27 | * @return new rate, or -ve error code | |
28 | */ | |
29 | ulong (*set_rate)(struct udevice *dev, ulong rate); | |
30 | ||
31 | /** | |
32 | * clk_set_periph_rate() - Set clock rate for a peripheral | |
33 | * | |
34 | * @dev: Device to adjust (UCLASS_CLK) | |
35 | * @rate: New clock rate in Hz | |
36 | * @return new clock rate in Hz, or -ve error code | |
37 | */ | |
38 | ulong (*get_periph_rate)(struct udevice *dev, int periph); | |
39 | ||
40 | /** | |
41 | * clk_set_periph_rate() - Set current clock rate for a peripheral | |
42 | * | |
43 | * @dev: Device to update (UCLASS_CLK) | |
44 | * @periph: Peripheral ID to cupdate | |
45 | * @return new clock rate in Hz, or -ve error code | |
46 | */ | |
47 | ulong (*set_periph_rate)(struct udevice *dev, int periph, ulong rate); | |
48 | }; | |
49 | ||
50 | #define clk_get_ops(dev) ((struct clk_ops *)(dev)->driver->ops) | |
51 | ||
52 | /** | |
53 | * clk_get_rate() - Get current clock rate | |
54 | * | |
55 | * @dev: Device to check (UCLASS_CLK) | |
56 | * @return clock rate in Hz, or -ve error code | |
57 | */ | |
58 | ulong clk_get_rate(struct udevice *dev); | |
59 | ||
60 | /** | |
61 | * set_rate() - Set current clock rate | |
62 | * | |
63 | * @dev: Device to adjust | |
64 | * @rate: New clock rate in Hz | |
65 | * @return new rate, or -ve error code | |
66 | */ | |
67 | ulong clk_set_rate(struct udevice *dev, ulong rate); | |
68 | ||
69 | /** | |
70 | * clk_get_periph_rate() - Get current clock rate for a peripheral | |
71 | * | |
72 | * @dev: Device to check (UCLASS_CLK) | |
73 | * @return clock rate in Hz, -ve error code | |
74 | */ | |
75 | ulong clk_get_periph_rate(struct udevice *dev, int periph); | |
76 | ||
77 | /** | |
78 | * clk_set_periph_rate() - Set current clock rate for a peripheral | |
79 | * | |
80 | * @dev: Device to update (UCLASS_CLK) | |
81 | * @periph: Peripheral ID to cupdate | |
82 | * @return new clock rate in Hz, or -ve error code | |
83 | */ | |
84 | ulong clk_set_periph_rate(struct udevice *dev, int periph, ulong rate); | |
85 | ||
08d0d6f3 | 86 | #endif /* _CLK_H_ */ |