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Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging 

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
  x86/hwmon: pkgtemp has no dependency on PCI
  MAINTAINERS: Update hwmon entry
  x86/hwmon: register alternate sibling upon CPU removal
  x86/hwmon: fix initialization of pkgtemp
  x86/hwmon: fix initialization of coretemp
  x86/hwmon: don't leak device attribute file from pkgtemp_probe() and pkgtemp_remove()
  x86/hwmon: avoid deadlock on CPU removal in pkgtemp
  x86/hwmon: fix module init for hotplug-but-no-device-found case
  hwmon: (lis3) Fix Oops with NULL platform data
This commit is contained in:
Linus Torvalds 2010-09-24 19:09:20 -07:00
parent fd194e6493 0eae779900
commit 8ae09259ff
7 changed files with 50 additions and 39 deletions
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2
MAINTAINERS
View File

@ -2668,6 +2668,8 @@ M: Guenter Roeck <guenter.roeck@ericsson.com>
L: lm-sensors@lm-sensors.org
W: http://www.lm-sensors.org/
T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-hwmon/
T: quilt kernel.org/pub/linux/kernel/people/groeck/linux-staging/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git
S: Maintained
F: Documentation/hwmon/
F: drivers/hwmon/

1
arch/x86/include/asm/cpufeature.h
View File

@ -168,6 +168,7 @@
#define X86_FEATURE_XSAVEOPT (7*32+ 4) /* Optimized Xsave */
#define X86_FEATURE_PLN (7*32+ 5) /* Intel Power Limit Notification */
#define X86_FEATURE_PTS (7*32+ 6) /* Intel Package Thermal Status */
#define X86_FEATURE_DTS (7*32+ 7) /* Digital Thermal Sensor */
/* Virtualization flags: Linux defined, word 8 */
#define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */

1
arch/x86/kernel/cpu/scattered.c
View File

@ -31,6 +31,7 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
const struct cpuid_bit *cb;
static const struct cpuid_bit __cpuinitconst cpuid_bits[] = {
{ X86_FEATURE_DTS, CR_EAX, 0, 0x00000006, 0 },
{ X86_FEATURE_IDA, CR_EAX, 1, 0x00000006, 0 },
{ X86_FEATURE_ARAT, CR_EAX, 2, 0x00000006, 0 },
{ X86_FEATURE_PLN, CR_EAX, 4, 0x00000006, 0 },

2
drivers/hwmon/Kconfig
View File

@ -409,7 +409,7 @@ config SENSORS_CORETEMP
config SENSORS_PKGTEMP
tristate "Intel processor package temperature sensor"
depends on X86 && PCI && EXPERIMENTAL
depends on X86 && EXPERIMENTAL
help
If you say yes here you get support for the package level temperature
sensor inside your CPU. Check documentation/driver for details.

56
drivers/hwmon/coretemp.c
View File

@ -423,9 +423,18 @@ static int __cpuinit coretemp_device_add(unsigned int cpu)
int err;
struct platform_device *pdev;
struct pdev_entry *pdev_entry;
#ifdef CONFIG_SMP
struct cpuinfo_x86 *c = &cpu_data(cpu);
#endif
/*
* 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 (!cpu_has(c, X86_FEATURE_DTS)) {
printk(KERN_INFO DRVNAME ": CPU (model=0x%x)"
" has no thermal sensor.\n", c->x86_model);
return 0;
}
mutex_lock(&pdev_list_mutex);
@ -482,14 +491,22 @@ exit:
static void coretemp_device_remove(unsigned int cpu)
{
struct pdev_entry *p, *n;
struct pdev_entry *p;
unsigned int i;
mutex_lock(&pdev_list_mutex);
list_for_each_entry_safe(p, n, &pdev_list, list) {
if (p->cpu == cpu) {
platform_device_unregister(p->pdev);
list_del(&p->list);
kfree(p);
}
list_for_each_entry(p, &pdev_list, list) {
if (p->cpu != cpu)
continue;
platform_device_unregister(p->pdev);
list_del(&p->list);
mutex_unlock(&pdev_list_mutex);
kfree(p);
for_each_cpu(i, cpu_sibling_mask(cpu))
if (i != cpu && !coretemp_device_add(i))
break;
return;
}
mutex_unlock(&pdev_list_mutex);
}
@ -527,30 +544,21 @@ static int __init coretemp_init(void)
if (err)
goto exit;
for_each_online_cpu(i) {
struct cpuinfo_x86 *c = &cpu_data(i);
/*
* 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 (c->cpuid_level >= 6 && (cpuid_eax(0x06) & 0x01))
coretemp_device_add(i);
else {
printk(KERN_INFO DRVNAME ": CPU (model=0x%x)"
" has no thermal sensor.\n", c->x86_model);
}
}
for_each_online_cpu(i)
coretemp_device_add(i);
#ifndef CONFIG_HOTPLUG_CPU
if (list_empty(&pdev_list)) {
err = -ENODEV;
goto exit_driver_unreg;
}
#endif
register_hotcpu_notifier(&coretemp_cpu_notifier);
return 0;
exit_driver_unreg:
#ifndef CONFIG_HOTPLUG_CPU
exit_driver_unreg:
platform_driver_unregister(&coretemp_driver);
#endif
exit:

4
drivers/hwmon/lis3lv02d.c
View File

@ -277,7 +277,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *dummy)
wake_up_interruptible(&lis3_dev.misc_wait);
kill_fasync(&lis3_dev.async_queue, SIGIO, POLL_IN);
out:
if (lis3_dev.whoami == WAI_8B && lis3_dev.idev &&
if (lis3_dev.pdata && lis3_dev.whoami == WAI_8B && lis3_dev.idev &&
lis3_dev.idev->input->users)
return IRQ_WAKE_THREAD;
return IRQ_HANDLED;
@ -718,7 +718,7 @@ int lis3lv02d_init_device(struct lis3lv02d *dev)
* io-apic is not configurable (and generates a warning) but I keep it
* in case of support for other hardware.
*/
if (dev->whoami == WAI_8B)
if (dev->pdata && dev->whoami == WAI_8B)
thread_fn = lis302dl_interrupt_thread1_8b;
else
thread_fn = NULL;

23
drivers/hwmon/pkgtemp.c
View File

@ -33,7 +33,6 @@
#include <linux/list.h>
#include <linux/platform_device.h>
#include <linux/cpu.h>
#include <linux/pci.h>
#include <asm/msr.h>
#include <asm/processor.h>
@ -224,7 +223,7 @@ static int __devinit pkgtemp_probe(struct platform_device *pdev)
err = sysfs_create_group(&pdev->dev.kobj, &pkgtemp_group);
if (err)
goto exit_free;
goto exit_dev;
data->hwmon_dev = hwmon_device_register(&pdev->dev);
if (IS_ERR(data->hwmon_dev)) {
@ -238,6 +237,8 @@ static int __devinit pkgtemp_probe(struct platform_device *pdev)
exit_class:
sysfs_remove_group(&pdev->dev.kobj, &pkgtemp_group);
exit_dev:
device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
exit_free:
kfree(data);
exit:
@ -250,6 +251,7 @@ static int __devexit pkgtemp_remove(struct platform_device *pdev)
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&pdev->dev.kobj, &pkgtemp_group);
device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
platform_set_drvdata(pdev, NULL);
kfree(data);
return 0;
@ -281,9 +283,10 @@ static int __cpuinit pkgtemp_device_add(unsigned int cpu)
int err;
struct platform_device *pdev;
struct pdev_entry *pdev_entry;
#ifdef CONFIG_SMP
struct cpuinfo_x86 *c = &cpu_data(cpu);
#endif
if (!cpu_has(c, X86_FEATURE_PTS))
return 0;
mutex_lock(&pdev_list_mutex);
@ -339,17 +342,18 @@ exit:
#ifdef CONFIG_HOTPLUG_CPU
static void pkgtemp_device_remove(unsigned int cpu)
{
struct pdev_entry *p, *n;
struct pdev_entry *p;
unsigned int i;
int err;
mutex_lock(&pdev_list_mutex);
list_for_each_entry_safe(p, n, &pdev_list, list) {
list_for_each_entry(p, &pdev_list, list) {
if (p->cpu != cpu)
continue;
platform_device_unregister(p->pdev);
list_del(&p->list);
mutex_unlock(&pdev_list_mutex);
kfree(p);
for_each_cpu(i, cpu_core_mask(cpu)) {
if (i != cpu) {
@ -358,7 +362,7 @@ static void pkgtemp_device_remove(unsigned int cpu)
break;
}
}
break;
return;
}
mutex_unlock(&pdev_list_mutex);
}
@ -399,11 +403,6 @@ static int __init pkgtemp_init(void)
goto exit;
for_each_online_cpu(i) {
struct cpuinfo_x86 *c = &cpu_data(i);
if (!cpu_has(c, X86_FEATURE_PTS))
continue;
err = pkgtemp_device_add(i);
if (err)
goto exit_devices_unreg;