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Diffstat (limited to 'drivers/cpufreq/speedstep-ich.c')
-rw-r--r--drivers/cpufreq/speedstep-ich.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c
index a748ce782fee..7432b3a72cd4 100644
--- a/drivers/cpufreq/speedstep-ich.c
+++ b/drivers/cpufreq/speedstep-ich.c
@@ -25,6 +25,8 @@
#include <linux/pci.h>
#include <linux/sched.h>
+#include <asm/cpu_device_id.h>
+
#include "speedstep-lib.h"
@@ -388,6 +390,16 @@ static struct cpufreq_driver speedstep_driver = {
.attr = speedstep_attr,
};
+static const struct x86_cpu_id ss_smi_ids[] = {
+ { X86_VENDOR_INTEL, 6, 0xb, },
+ { X86_VENDOR_INTEL, 6, 0x8, },
+ { X86_VENDOR_INTEL, 15, 2 },
+ {}
+};
+#if 0
+/* Autoload or not? Do not for now. */
+MODULE_DEVICE_TABLE(x86cpu, ss_smi_ids);
+#endif
/**
* speedstep_init - initializes the SpeedStep CPUFreq driver
@@ -398,6 +410,9 @@ static struct cpufreq_driver speedstep_driver = {
*/
static int __init speedstep_init(void)
{
+ if (!x86_match_cpu(ss_smi_ids))
+ return -ENODEV;
+
/* detect processor */
speedstep_processor = speedstep_detect_processor();
if (!speedstep_processor) {