xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'misc' into release

Browse Source
This commit is contained in:
Len Brown
2009-04-05 01:52:07 -04:00
parent 33526a5360 15065531c1
commit 8a3f257c70
9 changed files with 43 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
View File

@@ -680,6 +680,18 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
perf->states[i].transition_latency * 1000;
}
/* Check for high latency (>20uS) from buggy BIOSes, like on T42 */
if (perf->control_register.space_id == ACPI_ADR_SPACE_FIXED_HARDWARE &&
policy->cpuinfo.transition_latency > 20 * 1000) {
static int print_once;
policy->cpuinfo.transition_latency = 20 * 1000;
if (!print_once) {
print_once = 1;
printk(KERN_INFO "Capping off P-state tranision latency"
" at 20 uS\n");
}
}
data->max_freq = perf->states[0].core_frequency * 1000;
/* table init */
for (i=0; i<perf->state_count; i++) {