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authorPaul Mundt <lethal@linux-sh.org>2009-05-26 23:50:40 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-05-26 23:50:40 +0900
commit464c9e10376b24f04402fa8ef72b66257561bffa (patch)
treeac95ad416a2d3f3afcc92ca1790267a03b2be10d /arch/sh/include/asm/clock.h
parentb7e2ac619465f1774b827d9997109ceef4a61851 (diff)
parent61ce5393e4c8914c46ec99cbda76823515109709 (diff)
Merge branch 'sh/clkfwk'
Diffstat (limited to 'arch/sh/include/asm/clock.h')
-rw-r--r--arch/sh/include/asm/clock.h69
1 files changed, 45 insertions, 24 deletions
diff --git a/arch/sh/include/asm/clock.h b/arch/sh/include/asm/clock.h
index b1f29199e4bd..aa9480d4aa05 100644
--- a/arch/sh/include/asm/clock.h
+++ b/arch/sh/include/asm/clock.h
@@ -10,9 +10,9 @@ struct clk;
struct clk_ops {
void (*init)(struct clk *clk);
- void (*enable)(struct clk *clk);
+ int (*enable)(struct clk *clk);
void (*disable)(struct clk *clk);
- void (*recalc)(struct clk *clk);
+ unsigned long (*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);
@@ -27,44 +27,46 @@ struct clk {
struct clk *parent;
struct clk_ops *ops;
+ struct list_head children;
+ struct list_head sibling; /* node for children */
+
int usecount;
unsigned long rate;
unsigned long flags;
+
+ void __iomem *enable_reg;
+ unsigned int enable_bit;
+
unsigned long arch_flags;
+ void *priv;
+ struct dentry *dentry;
+};
+
+struct clk_lookup {
+ struct list_head node;
+ const char *dev_id;
+ const char *con_id;
+ struct clk *clk;
};
-#define CLK_ALWAYS_ENABLED (1 << 0)
-#define CLK_RATE_PROPAGATES (1 << 1)
-#define CLK_NEEDS_INIT (1 << 2)
+#define CLK_ENABLE_ON_INIT (1 << 0)
/* Should be defined by processor-specific code */
-void arch_init_clk_ops(struct clk_ops **, int type);
+void __deprecated 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 *);
-
+unsigned long followparent_recalc(struct clk *);
+void recalculate_root_clocks(void);
+void propagate_rate(struct clk *);
+int clk_reparent(struct clk *child, struct clk *parent);
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;
-}
+/* arch/sh/kernel/cpu/clock-cpg.c */
+int __init __deprecated cpg_clk_init(void);
/* the exported API, in addition to clk_set_rate */
/**
@@ -96,4 +98,23 @@ enum clk_sh_algo_id {
IP_N1,
};
+
+struct clk_div_mult_table {
+ unsigned int *divisors;
+ unsigned int nr_divisors;
+ unsigned int *multipliers;
+ unsigned int nr_multipliers;
+};
+
+struct cpufreq_frequency_table;
+void clk_rate_table_build(struct clk *clk,
+ struct cpufreq_frequency_table *freq_table,
+ int nr_freqs,
+ struct clk_div_mult_table *src_table,
+ unsigned long *bitmap);
+
+long clk_rate_table_round(struct clk *clk,
+ struct cpufreq_frequency_table *freq_table,
+ unsigned long rate);
+
#endif /* __ASM_SH_CLOCK_H */