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author | Ingo Molnar <mingo@elte.hu> | 2009-12-28 09:23:13 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-12-28 09:23:13 +0100 |
commit | 605c1a187f3ce82fbc243e2163c5ca8d1926df8e (patch) | |
tree | c8065a8c5606a66f81dc494ce22a5baa5e0dfe7e /arch/mips/include/asm/clock.h | |
parent | x86, compress: Force i386 instructions for the decompressor (diff) | |
parent | Merge branches 'dma-debug/fixes' and 'amd-iommu/fixes' into iommu/fixes (diff) | |
download | linux-605c1a187f3ce82fbc243e2163c5ca8d1926df8e.tar.xz linux-605c1a187f3ce82fbc243e2163c5ca8d1926df8e.zip |
Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
Diffstat (limited to 'arch/mips/include/asm/clock.h')
-rw-r--r-- | arch/mips/include/asm/clock.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/mips/include/asm/clock.h b/arch/mips/include/asm/clock.h new file mode 100644 index 000000000000..83894aa7932c --- /dev/null +++ b/arch/mips/include/asm/clock.h @@ -0,0 +1,64 @@ +#ifndef __ASM_MIPS_CLOCK_H +#define __ASM_MIPS_CLOCK_H + +#include <linux/kref.h> +#include <linux/list.h> +#include <linux/seq_file.h> +#include <linux/clk.h> + +extern void (*cpu_wait) (void); + +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); + 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; +}; + +#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 clk_init(void); + +int __clk_enable(struct clk *); +void __clk_disable(struct clk *); + +void clk_recalc_rate(struct clk *); + +int clk_register(struct clk *); +void clk_unregister(struct clk *); + +/* 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); + +#endif /* __ASM_MIPS_CLOCK_H */ |