aboutsummaryrefslogtreecommitdiff
path: root/arch/i386
diff options
context:
space:
mode:
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index d2d9caf00a2..e3fa03ab19a 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -463,6 +463,10 @@ static int centrino_cpu_init_acpi(struct cpufreq_policy *policy)
}
for (i=0; i<p->state_count; i++) {
+ /* clear high bits (set by some BIOSes) that are non-relevant and
+ problematic for this driver's MSR only frequency transition code */
+ p->states[i].control &= 0xffff;
+
if (p->states[i].control != p->states[i].status) {
dprintk("Different control (%llu) and status values (%llu)\n",
p->states[i].control, p->states[i].status);