diff options
Diffstat (limited to 'drivers/cpufreq/speedstep-smi.c')
| -rw-r--r-- | drivers/cpufreq/speedstep-smi.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c index c76ead3490bf..6a457fcaaad5 100644 --- a/drivers/cpufreq/speedstep-smi.c +++ b/drivers/cpufreq/speedstep-smi.c @@ -20,6 +20,7 @@ #include <linux/delay.h> #include <linux/io.h> #include <asm/ist.h> +#include <asm/cpu_device_id.h> #include "speedstep-lib.h" @@ -379,6 +380,17 @@ static struct cpufreq_driver speedstep_driver = { .attr = speedstep_attr, }; +static const struct x86_cpu_id ss_smi_ids[] = { + { X86_VENDOR_INTEL, 6, 0xb, }, + { X86_VENDOR_INTEL, 6, 0x8, }, + { X86_VENDOR_INTEL, 15, 2 }, + {} +}; +#if 0 +/* Not auto loaded currently */ +MODULE_DEVICE_TABLE(x86cpu, ss_smi_ids); +#endif + /** * speedstep_init - initializes the SpeedStep CPUFreq driver * @@ -388,6 +400,9 @@ static struct cpufreq_driver speedstep_driver = { */ static int __init speedstep_init(void) { + if (!x86_match_cpu(ss_smi_ids)) + return -ENODEV; + speedstep_processor = speedstep_detect_processor(); switch (speedstep_processor) { |