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authormaximilian attems <max@stro.at>2008-05-08 22:10:01 +0200
committerDave Jones <davej@redhat.com>2008-05-19 18:17:28 -0400
commit667ad4f70110357e8f024e81741c7bd1d7906e7d (patch)
tree8b8fec47add27a17964ca11bae7db1d33f7c97a6
parenteba9fe93a2959ec7f195c47c9db6ce7b5114ce1f (diff)
[CPUFREQ] Crusoe: longrun cpufreq module reports false min freq
The longrun cpufreq module reports a false minimum frequency 3MHz on 300-600MHz Crusoe processor. This may be due to a calculation bug in the module. Original patch from Kaz Sasayama <kazssym@hypercore.co.jp> submitted as http://bugs.debian.org/468149 patch ported to x86 Cc: Kaz Sasayama <kazssym@hypercore.co.jp> Signed-off-by: maximilian attems <max@stro.at> Signed-off-by: Dave Jones <davej@redhat.com>
-rw-r--r--arch/x86/kernel/cpu/cpufreq/longrun.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/longrun.c b/arch/x86/kernel/cpu/cpufreq/longrun.c
index af4a867a097c..777a7ff075de 100644
--- a/arch/x86/kernel/cpu/cpufreq/longrun.c
+++ b/arch/x86/kernel/cpu/cpufreq/longrun.c
@@ -245,7 +245,7 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq,
if ((ecx > 95) || (ecx == 0) || (eax < ebx))
return -EIO;
- edx = (eax - ebx) / (100 - ecx);
+ edx = ((eax - ebx) * 100) / (100 - ecx);
*low_freq = edx * 1000; /* back to kHz */
dprintk("low frequency is %u kHz\n", *low_freq);