diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-01-07 11:15:52 -0500 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-01-07 11:15:52 -0500 |
commit | f8ce25476d5f12ffa29b885e49c38cd95053437e (patch) | |
tree | 640fbdaacbf375f13feaf0eee49306d90b778b8a /include/asm-arm/hardware | |
parent | de1d815fccee1f4766a7e56054ab0ec3f6f3a7db (diff) |
[ARM] Move asm/hardware/clock.h to linux/clk.h
This is needs to be visible to other architectures using the AMBA
bus and peripherals.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/hardware')
-rw-r--r-- | include/asm-arm/hardware/clock.h | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/include/asm-arm/hardware/clock.h b/include/asm-arm/hardware/clock.h deleted file mode 100644 index 69f33215e437..000000000000 --- a/include/asm-arm/hardware/clock.h +++ /dev/null | |||
@@ -1,124 +0,0 @@ | |||
1 | /* | ||
2 | * linux/include/asm-arm/hardware/clock.h | ||
3 | * | ||
4 | * Copyright (C) 2004 ARM Limited. | ||
5 | * Written by Deep Blue Solutions Limited. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License version 2 as | ||
9 | * published by the Free Software Foundation. | ||
10 | */ | ||
11 | #ifndef ASMARM_CLOCK_H | ||
12 | #define ASMARM_CLOCK_H | ||
13 | |||
14 | struct device; | ||
15 | |||
16 | /* | ||
17 | * The base API. | ||
18 | */ | ||
19 | |||
20 | |||
21 | /* | ||
22 | * struct clk - an machine class defined object / cookie. | ||
23 | */ | ||
24 | struct clk; | ||
25 | |||
26 | /** | ||
27 | * clk_get - lookup and obtain a reference to a clock producer. | ||
28 | * @dev: device for clock "consumer" | ||
29 | * @id: clock comsumer ID | ||
30 | * | ||
31 | * Returns a struct clk corresponding to the clock producer, or | ||
32 | * valid IS_ERR() condition containing errno. The implementation | ||
33 | * uses @dev and @id to determine the clock consumer, and thereby | ||
34 | * the clock producer. (IOW, @id may be identical strings, but | ||
35 | * clk_get may return different clock producers depending on @dev.) | ||
36 | * | ||
37 | * Drivers must assume that the clock source is not enabled. | ||
38 | */ | ||
39 | struct clk *clk_get(struct device *dev, const char *id); | ||
40 | |||
41 | /** | ||
42 | * clk_enable - inform the system when the clock source should be running. | ||
43 | * @clk: clock source | ||
44 | * | ||
45 | * If the clock can not be enabled/disabled, this should return success. | ||
46 | * | ||
47 | * Returns success (0) or negative errno. | ||
48 | */ | ||
49 | int clk_enable(struct clk *clk); | ||
50 | |||
51 | /** | ||
52 | * clk_disable - inform the system when the clock source is no longer required. | ||
53 | * @clk: clock source | ||
54 | * | ||
55 | * Inform the system that a clock source is no longer required by | ||
56 | * a driver and may be shut down. | ||
57 | * | ||
58 | * Implementation detail: if the clock source is shared between | ||
59 | * multiple drivers, clk_enable() calls must be balanced by the | ||
60 | * same number of clk_disable() calls for the clock source to be | ||
61 | * disabled. | ||
62 | */ | ||
63 | void clk_disable(struct clk *clk); | ||
64 | |||
65 | /** | ||
66 | * clk_get_rate - obtain the current clock rate (in Hz) for a clock source. | ||
67 | * This is only valid once the clock source has been enabled. | ||
68 | * @clk: clock source | ||
69 | */ | ||
70 | unsigned long clk_get_rate(struct clk *clk); | ||
71 | |||
72 | /** | ||
73 | * clk_put - "free" the clock source | ||
74 | * @clk: clock source | ||
75 | * | ||
76 | * Note: drivers must ensure that all clk_enable calls made on this | ||
77 | * clock source are balanced by clk_disable calls prior to calling | ||
78 | * this function. | ||
79 | */ | ||
80 | void clk_put(struct clk *clk); | ||
81 | |||
82 | |||
83 | /* | ||
84 | * The remaining APIs are optional for machine class support. | ||
85 | */ | ||
86 | |||
87 | |||
88 | /** | ||
89 | * clk_round_rate - adjust a rate to the exact rate a clock can provide | ||
90 | * @clk: clock source | ||
91 | * @rate: desired clock rate in Hz | ||
92 | * | ||
93 | * Returns rounded clock rate in Hz, or negative errno. | ||
94 | */ | ||
95 | long clk_round_rate(struct clk *clk, unsigned long rate); | ||
96 | |||
97 | /** | ||
98 | * clk_set_rate - set the clock rate for a clock source | ||
99 | * @clk: clock source | ||
100 | * @rate: desired clock rate in Hz | ||
101 | * | ||
102 | * Returns success (0) or negative errno. | ||
103 | */ | ||
104 | int clk_set_rate(struct clk *clk, unsigned long rate); | ||
105 | |||
106 | /** | ||
107 | * clk_set_parent - set the parent clock source for this clock | ||
108 | * @clk: clock source | ||
109 | * @parent: parent clock source | ||
110 | * | ||
111 | * Returns success (0) or negative errno. | ||
112 | */ | ||
113 | int clk_set_parent(struct clk *clk, struct clk *parent); | ||
114 | |||
115 | /** | ||
116 | * clk_get_parent - get the parent clock source for this clock | ||
117 | * @clk: clock source | ||
118 | * | ||
119 | * Returns struct clk corresponding to parent clock source, or | ||
120 | * valid IS_ERR() condition containing errno. | ||
121 | */ | ||
122 | struct clk *clk_get_parent(struct clk *clk); | ||
123 | |||
124 | #endif | ||