Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH 6/8] HWMON: Convert coretemp to x86 cpuid autoprobing | Date | Mon, 19 Dec 2011 15:46:32 -0800 |
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From: Andi Kleen <ak@linux.intel.com>
Use the new x86 cpuid autoprobe interface for the Intel coretemp driver.
Cc: fenghua.yu@intel.com Cc: khali@linux-fr.org Cc: guenter.roeck@ericsson.com Signed-off-by: Andi Kleen <ak@linux.intel.com> --- 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 104b376..b965f80 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" @@ -756,13 +757,23 @@ 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) -- 1.7.7.4
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