Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (140 commits) ACPI: processor: use .notify method instead of installing handler directly ACPI: button: use .notify method instead of installing handler directly ACPI: support acpi_device_ops .notify methods toshiba-acpi: remove MAINTAINERS entry ACPI: battery: asynchronous init acer-wmi: Update copyright notice & documentation acer-wmi: Cleanup the failure cleanup handling acer-wmi: Blacklist Acer Aspire One video: build fix thinkpad-acpi: rework brightness support thinkpad-acpi: enhanced debugging messages for the fan subdriver thinkpad-acpi: enhanced debugging messages for the hotkey subdriver thinkpad-acpi: enhanced debugging messages for rfkill subdrivers thinkpad-acpi: restrict access to some firmware LEDs thinkpad-acpi: remove HKEY disable functionality thinkpad-acpi: add new debug helpers and warn of deprecated atts thinkpad-acpi: add missing log levels thinkpad-acpi: cleanup debug helpers thinkpad-acpi: documentation cleanup thinkpad-acpi: drop ibm-acpi alias ...
This commit is contained in:
@@ -682,6 +682,18 @@ 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++) {
|
||||
|
Reference in New Issue
Block a user