include/asm-sh/clock.h

   1 #ifndef __ASM_SH_CLOCK_H
   2 #define __ASM_SH_CLOCK_H
   3
   4 #include <linux/kref.h>
   5 #include <linux/list.h>
   6 #include <linux/seq_file.h>
   7
   8 struct clk;
   9
  10 struct clk_ops {
  11         void (*init)(struct clk *clk);
  12         void (*enable)(struct clk *clk);
  13         void (*disable)(struct clk *clk);
  14         void (*recalc)(struct clk *clk);
  15         int (*set_rate)(struct clk *clk, unsigned long rate);
  16 };
  17
  18 struct clk {
  19         struct list_head        node;
  20         const char              *name;
  21
  22         struct module           *owner;
  23
  24         struct clk              *parent;
  25         struct clk_ops          *ops;
  26
  27         struct kref             kref;
  28
  29         unsigned long           rate;
  30         unsigned long           flags;
  31 };
  32
  33 #define CLK_ALWAYS_ENABLED      (1 << 0)
  34 #define CLK_RATE_PROPAGATES     (1 << 1)
  35
  36 /* Should be defined by processor-specific code */
  37 void arch_init_clk_ops(struct clk_ops **, int type);
  38
  39 /* arch/sh/kernel/cpu/clock.c */
  40 int clk_init(void);
  41
  42 int __clk_enable(struct clk *);
  43 int clk_enable(struct clk *);
  44
  45 void __clk_disable(struct clk *);
  46 void clk_disable(struct clk *);
  47
  48 int clk_set_rate(struct clk *, unsigned long rate);
  49 unsigned long clk_get_rate(struct clk *);
  50 void clk_recalc_rate(struct clk *);
  51
  52 struct clk *clk_get(const char *id);
  53 void clk_put(struct clk *);
  54
  55 int clk_register(struct clk *);
  56 void clk_unregister(struct clk *);
  57
  58 int show_clocks(struct seq_file *m);
  59
  60 #endif /* __ASM_SH_CLOCK_H */
  61