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path: root/drivers/cpufreq/p4-clockmod.c
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Diffstat (limited to 'drivers/cpufreq/p4-clockmod.c')
-rw-r--r--drivers/cpufreq/p4-clockmod.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 6be3e0760c2..827629c9aad 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -31,6 +31,7 @@
#include <asm/processor.h>
#include <asm/msr.h>
#include <asm/timer.h>
+#include <asm/cpu_device_id.h>
#include "speedstep-lib.h"
@@ -289,21 +290,25 @@ static struct cpufreq_driver p4clockmod_driver = {
.attr = p4clockmod_attr,
};
+static const struct x86_cpu_id cpufreq_p4_id[] = {
+ { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_ACC },
+ {}
+};
+
+/*
+ * Intentionally no MODULE_DEVICE_TABLE here: this driver should not
+ * be auto loaded. Please don't add one.
+ */
static int __init cpufreq_p4_init(void)
{
- struct cpuinfo_x86 *c = &cpu_data(0);
int ret;
/*
* THERM_CONTROL is architectural for IA32 now, so
* we can rely on the capability checks
*/
- if (c->x86_vendor != X86_VENDOR_INTEL)
- return -ENODEV;
-
- if (!test_cpu_cap(c, X86_FEATURE_ACPI) ||
- !test_cpu_cap(c, X86_FEATURE_ACC))
+ if (!x86_match_cpu(cpufreq_p4_id) || !boot_cpu_has(X86_FEATURE_ACPI))
return -ENODEV;
ret = cpufreq_register_driver(&p4clockmod_driver);