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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-20 14:16:20 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-20 14:16:20 -0400
commit4a52246302f01596f0edf7b4a3e6425e23479192 (patch)
treef384d86722d3ccfc875e3e5e8d8726e993a922ee /drivers/cpufreq/speedstep-smi.c
parent9f9d2760da8c7f94fae119fac3e13d5a1702f8f0 (diff)
parentadc80ae60eae24a43a357bf5b30fb496f34aa605 (diff)
Merge tag 'driver-core-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches for 3.4-rc1 from Greg KH: "Here's the big driver core merge for 3.4-rc1. Lots of various things here, sysfs fixes/tweaks (with the nlink breakage reverted), dynamic debugging updates, w1 drivers, hyperv driver updates, and a variety of other bits and pieces, full information in the shortlog." * tag 'driver-core-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (78 commits) Tools: hv: Support enumeration from all the pools Tools: hv: Fully support the new KVP verbs in the user level daemon Drivers: hv: Support the newly introduced KVP messages in the driver Drivers: hv: Add new message types to enhance KVP regulator: Support driver probe deferral Revert "sysfs: Kill nlink counting." uevent: send events in correct order according to seqnum (v3) driver core: minor comment formatting cleanups driver core: move the deferred probe pointer into the private area drivercore: Add driver probe deferral mechanism DS2781 Maxim Stand-Alone Fuel Gauge battery and w1 slave drivers w1_bq27000: Only one thread can access the bq27000 at a time. w1_bq27000 - remove w1_bq27000_write w1_bq27000: remove unnecessary NULL test. sysfs: Fix memory leak in sysfs_sd_setsecdata(). intel_idle: Revert change of auto_demotion_disable_flags for Nehalem w1: Fix w1_bq27000 driver-core: documentation: fix up Greg's email address powernow-k6: Really enable auto-loading powernow-k7: Fix CPU family number ...
Diffstat (limited to 'drivers/cpufreq/speedstep-smi.c')
-rw-r--r--drivers/cpufreq/speedstep-smi.c15
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 @@
20#include <linux/delay.h> 20#include <linux/delay.h>
21#include <linux/io.h> 21#include <linux/io.h>
22#include <asm/ist.h> 22#include <asm/ist.h>
23#include <asm/cpu_device_id.h>
23 24
24#include "speedstep-lib.h" 25#include "speedstep-lib.h"
25 26
@@ -379,6 +380,17 @@ static struct cpufreq_driver speedstep_driver = {
379 .attr = speedstep_attr, 380 .attr = speedstep_attr,
380}; 381};
381 382
383static const struct x86_cpu_id ss_smi_ids[] = {
384 { X86_VENDOR_INTEL, 6, 0xb, },
385 { X86_VENDOR_INTEL, 6, 0x8, },
386 { X86_VENDOR_INTEL, 15, 2 },
387 {}
388};
389#if 0
390/* Not auto loaded currently */
391MODULE_DEVICE_TABLE(x86cpu, ss_smi_ids);
392#endif
393
382/** 394/**
383 * speedstep_init - initializes the SpeedStep CPUFreq driver 395 * speedstep_init - initializes the SpeedStep CPUFreq driver
384 * 396 *
@@ -388,6 +400,9 @@ static struct cpufreq_driver speedstep_driver = {
388 */ 400 */
389static int __init speedstep_init(void) 401static int __init speedstep_init(void)
390{ 402{
403 if (!x86_match_cpu(ss_smi_ids))
404 return -ENODEV;
405
391 speedstep_processor = speedstep_detect_processor(); 406 speedstep_processor = speedstep_detect_processor();
392 407
393 switch (speedstep_processor) { 408 switch (speedstep_processor) {