diff options
| author | Andi Kleen <ak@linux.intel.com> | 2012-01-25 23:09:10 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-27 00:48:13 (GMT) |
| commit | 9b38096fde5f9b93c3657911c3be7892cc155cbd (patch) | |
| tree | d27f02fb87f5b7cee8b9ef8ec8ae4c4b4d3a1da1 /drivers/hwmon/coretemp.c | |
| parent | 267fc9788d0cdb77edafb506063f06961e1418f5 (diff) | |
| download | linux-9b38096fde5f9b93c3657911c3be7892cc155cbd.tar.xz | |
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>
Diffstat (limited to 'drivers/hwmon/coretemp.c')
| -rw-r--r-- | drivers/hwmon/coretemp.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index a6c6ec3..249ac46 100644 --- 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) |