1 #ifndef __ASM_SH_CLOCK_H
2 #define __ASM_SH_CLOCK_H
4 #include <linux/list.h>
5 #include <linux/seq_file.h>
6 #include <linux/cpufreq.h>
13 void (*init
)(struct clk
*clk
);
14 int (*enable
)(struct clk
*clk
);
15 void (*disable
)(struct clk
*clk
);
16 unsigned long (*recalc
)(struct clk
*clk
);
17 int (*set_rate
)(struct clk
*clk
, unsigned long rate
, int algo_id
);
18 int (*set_parent
)(struct clk
*clk
, struct clk
*parent
);
19 long (*round_rate
)(struct clk
*clk
, unsigned long rate
);
23 struct list_head node
;
31 struct list_head children
;
32 struct list_head sibling
; /* node for children */
39 void __iomem
*enable_reg
;
40 unsigned int enable_bit
;
42 unsigned long arch_flags
;
44 struct dentry
*dentry
;
45 struct cpufreq_frequency_table
*freq_table
;
48 #define CLK_ENABLE_ON_INIT (1 << 0)
50 /* Should be defined by processor-specific code */
51 void __deprecated
arch_init_clk_ops(struct clk_ops
**, int type
);
52 int __init
arch_clk_init(void);
54 /* arch/sh/kernel/cpu/clock.c */
56 unsigned long followparent_recalc(struct clk
*);
57 void recalculate_root_clocks(void);
58 void propagate_rate(struct clk
*);
59 int clk_reparent(struct clk
*child
, struct clk
*parent
);
60 int clk_register(struct clk
*);
61 void clk_unregister(struct clk
*);
63 /* arch/sh/kernel/cpu/clock-cpg.c */
64 int __init __deprecated
cpg_clk_init(void);
66 /* the exported API, in addition to clk_set_rate */
68 * clk_set_rate_ex - set the clock rate for a clock source, with additional parameter
70 * @rate: desired clock rate in Hz
71 * @algo_id: algorithm id to be passed down to ops->set_rate
73 * Returns success (0) or negative errno.
75 int clk_set_rate_ex(struct clk
*clk
, unsigned long rate
, int algo_id
);
97 struct clk_div_mult_table
{
98 unsigned int *divisors
;
99 unsigned int nr_divisors
;
100 unsigned int *multipliers
;
101 unsigned int nr_multipliers
;
104 struct cpufreq_frequency_table
;
105 void clk_rate_table_build(struct clk
*clk
,
106 struct cpufreq_frequency_table
*freq_table
,
108 struct clk_div_mult_table
*src_table
,
109 unsigned long *bitmap
);
111 long clk_rate_table_round(struct clk
*clk
,
112 struct cpufreq_frequency_table
*freq_table
,
115 int clk_rate_table_find(struct clk
*clk
,
116 struct cpufreq_frequency_table
*freq_table
,
119 #define SH_CLK_MSTP32(_parent, _enable_reg, _enable_bit, _flags) \
122 .enable_reg = (void __iomem *)_enable_reg, \
123 .enable_bit = _enable_bit, \
127 int sh_clk_mstp32_register(struct clk
*clks
, int nr
);
129 #define SH_CLK_DIV4(_name, _parent, _reg, _shift, _div_bitmap, _flags) \
133 .enable_reg = (void __iomem *)_reg, \
134 .enable_bit = _shift, \
135 .arch_flags = _div_bitmap, \
139 struct clk_div4_table
{
140 struct clk_div_mult_table
*div_mult_table
;
141 void (*kick
)(struct clk
*clk
);
144 int sh_clk_div4_register(struct clk
*clks
, int nr
,
145 struct clk_div4_table
*table
);
146 int sh_clk_div4_enable_register(struct clk
*clks
, int nr
,
147 struct clk_div4_table
*table
);
148 int sh_clk_div4_reparent_register(struct clk
*clks
, int nr
,
149 struct clk_div4_table
*table
);
151 #define SH_CLK_DIV6(_parent, _reg, _flags) \
154 .enable_reg = (void __iomem *)_reg, \
158 int sh_clk_div6_register(struct clk
*clks
, int nr
);
160 #endif /* __ASM_SH_CLOCK_H */
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