diff options
author | Paul Mundt <lethal@linux-sh.org> | 2009-05-26 23:50:40 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2009-05-26 23:50:40 +0900 |
commit | 464c9e10376b24f04402fa8ef72b66257561bffa (patch) | |
tree | ac95ad416a2d3f3afcc92ca1790267a03b2be10d /arch/sh/include/asm/clock.h | |
parent | b7e2ac619465f1774b827d9997109ceef4a61851 (diff) | |
parent | 61ce5393e4c8914c46ec99cbda76823515109709 (diff) |
Merge branch 'sh/clkfwk'
Diffstat (limited to 'arch/sh/include/asm/clock.h')
-rw-r--r-- | arch/sh/include/asm/clock.h | 69 |
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 */ |