- Add driver auto probing for x86 features v4

[linux-flexiantxendom0-3.2.10.git] / drivers / cpufreq / speedstep-smi.c

diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c
index c76ead3..6a457fc 100644 (file)
--- a/drivers/cpufreq/speedstep-smi.c
+++ b/drivers/cpufreq/speedstep-smi.c
@@ -20,6 +20,7 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <asm/ist.h>
+#include <asm/cpu_device_id.h>
 
 #include "speedstep-lib.h"
 
@@ -379,6 +380,17 @@ 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
+/* Not auto loaded currently */
+MODULE_DEVICE_TABLE(x86cpu, ss_smi_ids);
+#endif
+
 /**
  * speedstep_init - initializes the SpeedStep CPUFreq driver
  *
@@ -388,6 +400,9 @@ static struct cpufreq_driver speedstep_driver = {
  */
 static int __init speedstep_init(void)
 {
+       if (!x86_match_cpu(ss_smi_ids))
+               return -ENODEV;
+
        speedstep_processor = speedstep_detect_processor();
 
        switch (speedstep_processor) {