diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-17 16:38:06 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-17 16:38:06 -0800 |
commit | dbfc985195410dad803c845743c63cd73bd1fe32 (patch) | |
tree | 6bf6dbecb92539285ebb89948e63e691a0947941 /arch/mips/include/asm/clock.h | |
parent | 7c508e50be47737b9a72d0f15c3ef1146925e2d2 (diff) | |
parent | 606d62fa02cf1da43c6e21521650fff07a2e56d1 (diff) |
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (71 commits)
MIPS: Lasat: Fix botched changes to sysctl code.
RTC: rtc-cmos.c: Fix warning on MIPS
MIPS: Cleanup random differences beween lmo and Linus' kernel.
MIPS: No longer hardwire CONFIG_EMBEDDED to y
MIPS: Fix and enhance built-in kernel command line
MIPS: eXcite: Remove platform.
MIPS: Loongson: Cleanups of serial port support
MIPS: Lemote 2F: Suspend CS5536 MFGPT Timer
MIPS: Excite: move iodev_remove to .devexit.text
MIPS: Lasat: Convert to proc_fops / seq_file
MIPS: Cleanup signal code initialization
MIPS: Modularize COP2 handling
MIPS: Move EARLY_PRINTK to Kconfig.debug
MIPS: Yeeloong 2F: Cleanup reset logic using the new ec_write function
MIPS: Yeeloong 2F: Add LID open event as the wakeup event
MIPS: Yeeloong 2F: Add basic EC operations
MIPS: Move several variables from .bss to .init.data
MIPS: Tracing: Make function graph tracer work with -mmcount-ra-address
MIPS: Tracing: Reserve $12(t0) for mcount-ra-address of gcc 4.5
MIPS: Tracing: Make ftrace for MIPS work without -fno-omit-frame-pointer
...
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 00000000000..83894aa7932 --- /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 */ |