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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-18 20:02:35 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-18 20:02:35 -0400
commit39710479303fd3affb3e204e9a7a75cc676977b5 (patch)
tree3fff5fb412df77170883f02fc54bdbee9aba4f22 /arch/blackfin/include/asm/delay.h
parent9d20593a722c2dab7a5ab74f5d8c9b604aca52f9 (diff)
parenteb63e5d15758d2b1e607ddd5fb861b5596629380 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (96 commits) Blackfin: stop cleaning include/asm/asm-offsets.h Blackfin: scale calibration when cpu freq changes Blackfin: eat spurious space in asm/dpmc.h Blackfin: fix anomaly 283 handling with exact hardware error Blackfin: bf537-stamp: add example ADXL346 orientation resources Blackfin: bf537-stamp: add example AD2S1210 IIO resources Blackfin: don't support keypad wakeup from hibernate Blackfin: bf537-stamp: add example AD7416 IIO resources Blackfin: bf537-stamp: add example ADP8860 backlight/led resources Blackfin: bf537-stamp: add example AD7414 temp sensor resources Blackfin: rename AD1836 to AD183X in board files Blackfin: bf537-stamp: add example AD2S120x resources Blackfin: add support for the on-chip MAC status interrupts Blackfin: asm/page.h: pull in asm-generic headers Blackfin: mark gpio lib functions static Blackfin: bf537-stamp: add example ADAU1361 resources Blackfin: GPIO: implement to_irq handler Blackfin: bf537-stamp: add example ADP122/ADP150 power regulator resources Blackfin: bf537-stamp: add example AD2S90 resources Blackfin: bf537-stamp: add example AD5398 power regulator resources ...
Diffstat (limited to 'arch/blackfin/include/asm/delay.h')
-rw-r--r--arch/blackfin/include/asm/delay.h16
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/blackfin/include/asm/delay.h b/arch/blackfin/include/asm/delay.h
index c31f91cc1d5d..171d8deb04a5 100644
--- a/arch/blackfin/include/asm/delay.h
+++ b/arch/blackfin/include/asm/delay.h
@@ -30,10 +30,22 @@ __asm__ __volatile__ (
30 30
31#define HZSCALE (268435456 / (1000000/HZ)) 31#define HZSCALE (268435456 / (1000000/HZ))
32 32
33static inline void udelay(unsigned long usecs) 33static inline unsigned long __to_delay(unsigned long scale)
34{ 34{
35 extern unsigned long loops_per_jiffy; 35 extern unsigned long loops_per_jiffy;
36 __delay((((usecs * HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6); 36 return (((scale * HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6;
37}
38
39static inline void udelay(unsigned long usecs)
40{
41 __delay(__to_delay(usecs));
37} 42}
38 43
44static inline void ndelay(unsigned long nsecs)
45{
46 __delay(__to_delay(1) * nsecs / 1000);
47}
48
49#define ndelay ndelay
50
39#endif 51#endif