1#ifndef __ASM_MIPS_CLOCK_H 2#define __ASM_MIPS_CLOCK_H 3 4#include <linux/kref.h> 5#include <linux/list.h> 6#include <linux/seq_file.h> 7#include <linux/clk.h> 8 9extern void (*cpu_wait) (void); 10 11struct clk; 12 13struct clk_ops { 14 void (*init) (struct clk *clk); 15 void (*enable) (struct clk *clk); 16 void (*disable) (struct clk *clk); 17 void (*recalc) (struct clk *clk); 18 int (*set_rate) (struct clk *clk, unsigned long rate, int algo_id); 19 long (*round_rate) (struct clk *clk, unsigned long rate); 20}; 21 22struct clk { 23 struct list_head node; 24 const char *name; 25 int id; 26 struct module *owner; 27 28 struct clk *parent; 29 struct clk_ops *ops; 30 31 struct kref kref; 32 33 unsigned long rate; 34 unsigned long flags; 35}; 36 37#define CLK_ALWAYS_ENABLED (1 << 0) 38#define CLK_RATE_PROPAGATES (1 << 1) 39 40/* Should be defined by processor-specific code */ 41void arch_init_clk_ops(struct clk_ops **, int type); 42 43int clk_init(void); 44 45int __clk_enable(struct clk *); 46void __clk_disable(struct clk *); 47 48void clk_recalc_rate(struct clk *); 49 50int clk_register(struct clk *); 51void clk_unregister(struct clk *); 52 53/* the exported API, in addition to clk_set_rate */ 54/** 55 * clk_set_rate_ex - set the clock rate for a clock source, with additional parameter 56 * @clk: clock source 57 * @rate: desired clock rate in Hz 58 * @algo_id: algorithm id to be passed down to ops->set_rate 59 * 60 * Returns success (0) or negative errno. 61 */ 62int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id); 63 64#endif /* __ASM_MIPS_CLOCK_H */ 65