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path: root/drivers/cpufreq/speedstep-centrino.c
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Diffstat (limited to 'drivers/cpufreq/speedstep-centrino.c')
-rw-r--r--drivers/cpufreq/speedstep-centrino.c24
1 files changed, 20 insertions, 4 deletions
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 6ea3455def21..3a953d519f46 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -25,6 +25,7 @@
#include <asm/msr.h>
#include <asm/processor.h>
#include <asm/cpufeature.h>
+#include <asm/cpu_device_id.h>
#define PFX "speedstep-centrino: "
#define MAINTAINER "cpufreq@vger.kernel.org"
@@ -595,6 +596,24 @@ static struct cpufreq_driver centrino_driver = {
.owner = THIS_MODULE,
};
+/*
+ * This doesn't replace the detailed checks above because
+ * the generic CPU IDs don't have a way to match for steppings
+ * or ASCII model IDs.
+ */
+static const struct x86_cpu_id centrino_ids[] = {
+ { X86_VENDOR_INTEL, 6, 9, X86_FEATURE_EST },
+ { X86_VENDOR_INTEL, 6, 13, X86_FEATURE_EST },
+ { X86_VENDOR_INTEL, 6, 13, X86_FEATURE_EST },
+ { X86_VENDOR_INTEL, 6, 13, X86_FEATURE_EST },
+ { X86_VENDOR_INTEL, 15, 3, X86_FEATURE_EST },
+ { X86_VENDOR_INTEL, 15, 4, X86_FEATURE_EST },
+ {}
+};
+#if 0
+/* Autoload or not? Do not for now. */
+MODULE_DEVICE_TABLE(x86cpu, centrino_ids);
+#endif
/**
* centrino_init - initializes the Enhanced SpeedStep CPUFreq driver
@@ -612,11 +631,8 @@ static struct cpufreq_driver centrino_driver = {
*/
static int __init centrino_init(void)
{
- struct cpuinfo_x86 *cpu = &cpu_data(0);
-
- if (!cpu_has(cpu, X86_FEATURE_EST))
+ if (!x86_match_cpu(centrino_ids))
return -ENODEV;
-
return cpufreq_register_driver(&centrino_driver);
}