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#ifndef __ASM_SH_CLOCK_H
#define __ASM_SH_CLOCK_H
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/seq_file.h>
#include <linux/clk.h>
#include <linux/err.h>
struct clk;
struct clk_ops {
void (*init)(struct clk *clk);
void (*enable)(struct clk *clk);
void (*disable)(struct clk *clk);
void (*recalc)(struct clk *clk);
int (*set_rate)(struct clk *clk, unsigned long rate, int algo_id);
int (*set_parent)(struct clk *clk, struct clk *parent);
long (*round_rate)(struct clk *clk, unsigned long rate);
};
struct clk {
struct list_head node;
const char *name;
int id;
struct module *owner;
struct clk *parent;
struct clk_ops *ops;
struct kref kref;
unsigned long rate;
unsigned long flags;
unsigned long arch_flags;
};
#define CLK_ALWAYS_ENABLED (1 << 0)
#define CLK_RATE_PROPAGATES (1 << 1)
/* Should be defined by processor-specific code */
void arch_init_clk_ops(struct clk_ops **, int type);
int __init arch_clk_init(void);
/* arch/sh/kernel/cpu/clock.c */
int clk_init(void);
void clk_recalc_rate(struct clk *);
int clk_register(struct clk *);
void clk_unregister(struct clk *);
static inline int clk_always_enable(const char *id)
{
struct clk *clk;
int ret;
clk = clk_get(NULL, id);
if (IS_ERR(clk))
return PTR_ERR(clk);
ret = clk_enable(clk);
if (ret)
clk_put(clk);
return ret;
}
/* the exported API, in addition to clk_set_rate */
/**
* clk_set_rate_ex - set the clock rate for a clock source, with additional parameter
* @clk: clock source
* @rate: desired clock rate in Hz
* @algo_id: algorithm id to be passed down to ops->set_rate
*
* Returns success (0) or negative errno.
*/
int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id);
enum clk_sh_algo_id {
NO_CHANGE = 0,
IUS_N1_N1,
IUS_322,
IUS_522,
IUS_N11,
SB_N1,
SB3_N1,
SB3_32,
SB3_43,
SB3_54,
BP_N1,
IP_N1,
};
#endif /* __ASM_SH_CLOCK_H */
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