HWMON: Convert coretemp to x86 cpuid autoprobing

Use the new x86 cpuid autoprobe interface for the Intel coretemp
driver.

Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index a6c6ec3..249ac46 100644 (file)
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -39,6 +39,7 @@
 #include <linux/moduleparam.h>
 #include <asm/msr.h>
 #include <asm/processor.h>
+#include <asm/cpu_device_id.h>
 
 #define DRVNAME        "coretemp"
 
@@ -759,13 +760,23 @@ static struct notifier_block coretemp_cpu_notifier __refdata = {
        .notifier_call = coretemp_cpu_callback,
 };
 
+static const struct x86_cpu_id coretemp_ids[] = {
+       { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_DTS },
+       {}
+};
+MODULE_DEVICE_TABLE(x86cpu, coretemp_ids);
+
 static int __init coretemp_init(void)
 {
        int i, err = -ENODEV;
 
-       /* quick check if we run Intel */
-       if (cpu_data(0).x86_vendor != X86_VENDOR_INTEL)
-               goto exit;
+       /*
+        * CPUID.06H.EAX[0] indicates whether the CPU has thermal
+        * sensors. We check this bit only, all the early CPUs
+        * without thermal sensors will be filtered out.
+        */
+       if (!x86_match_cpu(coretemp_ids))
+               return -ENODEV;
 
        err = platform_driver_register(&coretemp_driver);
        if (err)