diff options
| author | maximilian attems <max@stro.at> | 2008-05-08 22:10:01 +0200 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2008-05-19 18:17:28 -0400 |
| commit | 667ad4f70110357e8f024e81741c7bd1d7906e7d (patch) | |
| tree | 8b8fec47add27a17964ca11bae7db1d33f7c97a6 /arch | |
| parent | eba9fe93a2959ec7f195c47c9db6ce7b5114ce1f (diff) | |
| download | lwn-667ad4f70110357e8f024e81741c7bd1d7906e7d.tar.gz lwn-667ad4f70110357e8f024e81741c7bd1d7906e7d.zip | |
[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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/longrun.c | 2 |
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); |