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#include <linux/clk.h> 8 9struct clk; 10 11struct clk_ops { 12 void (*init)(struct clk *clk); 13 void (*enable)(struct clk *clk); 14 void (*disable)(struct clk *clk); 15 void (*recalc)(struct clk *clk); 16 int (*set_rate)(struct clk *clk, unsigned long rate, int algo_id); 17}; 18 19struct clk { 20 struct list_head node; 21 const char *name; 22 int id; 23 struct module *owner; 24 25 struct clk *parent; 26 struct clk_ops *ops; 27 28 struct kref kref; 29 30 unsigned long rate; 31 unsigned long flags; 32}; 33 34#define CLK_ALWAYS_ENABLED (1 << 0) 35#define CLK_RATE_PROPAGATES (1 << 1) 36 37/* Should be defined by processor-specific code */ 38void arch_init_clk_ops(struct clk_ops **, int type); 39 40/* arch/sh/kernel/cpu/clock.c */ 41int clk_init(void); 42 43int __clk_enable(struct clk *); 44void __clk_disable(struct clk *); 45 46void clk_recalc_rate(struct clk *); 47 48int clk_register(struct clk *); 49void clk_unregister(struct clk *); 50 51/* the exported API, in addition to clk_set_rate */ 52/** 53 * clk_set_rate_ex - set the clock rate for a clock source, with additional parameter 54 * @clk: clock source 55 * @rate: desired clock rate in Hz 56 * @algo_id: algorithm id to be passed down to ops->set_rate 57 * 58 * Returns success (0) or negative errno. 59 */ 60int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id); 61 62enum clk_sh_algo_id { 63 NO_CHANGE = 0, 64 65 IUS_N1_N1, 66 IUS_322, 67 IUS_522, 68 IUS_N11, 69 70 SB_N1, 71 72 SB3_N1, 73 SB3_32, 74 SB3_43, 75 SB3_54, 76 77 BP_N1, 78 79 IP_N1, 80}; 81#endif /* __ASM_SH_CLOCK_H */ 82