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| author | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 11:15:23 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 11:15:23 -0800 |
| commit | 3f00d3e8fb963968a922d821a9a53b503b687e81 (patch) | |
| tree | dfac1c73ae63f8d48340f3bbb77ee53b322c59e9 /include/asm-mips/delay.h | |
| parent | 407cf84f956ee4b52da5508d5357b8ae212ff77c (diff) | |
| parent | a637a114f36b94a1ad8b9867f43bac0414958420 (diff) | |
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Diffstat (limited to 'include/asm-mips/delay.h')
| -rw-r--r-- | include/asm-mips/delay.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-mips/delay.h b/include/asm-mips/delay.h index 85435a8d4e5..48d00cccdaf 100644 --- a/include/asm-mips/delay.h +++ b/include/asm-mips/delay.h @@ -84,4 +84,13 @@ static inline void __udelay(unsigned long usecs, unsigned long lpj) #define udelay(usecs) __udelay((usecs),__udelay_val) +/* make sure "usecs *= ..." in udelay do not overflow. */ +#if HZ >= 1000 +#define MAX_UDELAY_MS 1 +#elif HZ <= 200 +#define MAX_UDELAY_MS 5 +#else +#define MAX_UDELAY_MS (1000 / HZ) +#endif + #endif /* _ASM_DELAY_H */ |