diff options
| author | Daniel Willerud <daniel.willerud@stericsson.com> | 2011-08-26 10:49:11 +0200 |
|---|---|---|
| committer | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-05-22 11:00:51 +0200 |
| commit | 1232e887f97a3e9ea82b6193cda5e58ba7605736 (patch) | |
| tree | 14d73952885e3c90f6cb87ac661d3033a59f9bf8 | |
| parent | c03cd4e6ffe661108ab97eae9b245702ad8e5cf5 (diff) | |
hwmon: Adding notifiers to hwmon
ST-Ericsson ID: 354533
ST-Ericsson Linux next: Not tested
ST-Ericsson FOSS-OUT ID: Trivial
Change-Id: I068a3c801405b6f7ca2b78df7cd9f7461ed8738b
Signed-off-by: Daniel Willerud <daniel.willerud@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/29502
Reviewed-by: QABUILD
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
| -rw-r--r-- | drivers/hwmon/hwmon.c | 21 | ||||
| -rw-r--r-- | include/linux/hwmon.h | 6 |
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c index c3c471ca202..8957bbac7a7 100644 --- a/drivers/hwmon/hwmon.c +++ b/drivers/hwmon/hwmon.c @@ -21,6 +21,7 @@ #include <linux/gfp.h> #include <linux/spinlock.h> #include <linux/pci.h> +#include <linux/notifier.h> #define HWMON_ID_PREFIX "hwmon" #define HWMON_ID_FORMAT HWMON_ID_PREFIX "%d" @@ -29,6 +30,8 @@ static struct class *hwmon_class; static DEFINE_IDA(hwmon_ida); +static BLOCKING_NOTIFIER_HEAD(hwmon_notifier_list); + /** * hwmon_device_register - register w/ hwmon * @dev: the device to register @@ -75,6 +78,24 @@ void hwmon_device_unregister(struct device *dev) } EXPORT_SYMBOL_GPL(hwmon_device_unregister); +int hwmon_notifier_register(struct notifier_block *nb) +{ + return blocking_notifier_chain_register(&hwmon_notifier_list, nb); +} +EXPORT_SYMBOL(hwmon_notifier_register); + +int hwmon_notifier_unregister(struct notifier_block *nb) +{ + return blocking_notifier_chain_unregister(&hwmon_notifier_list, nb); +} +EXPORT_SYMBOL(hwmon_notifier_unregister); + +void hwmon_notify(unsigned long val, void *v) +{ + blocking_notifier_call_chain(&hwmon_notifier_list, val, v); +} +EXPORT_SYMBOL(hwmon_notify); + static void __init hwmon_pci_quirks(void) { #if defined CONFIG_X86 && defined CONFIG_PCI diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h index 82b29ae6ebb..6cb4d26bf60 100644 --- a/include/linux/hwmon.h +++ b/include/linux/hwmon.h @@ -14,12 +14,18 @@ #ifndef _HWMON_H_ #define _HWMON_H_ +#include <linux/notifier.h> + struct device; struct device *hwmon_device_register(struct device *dev); void hwmon_device_unregister(struct device *dev); +int hwmon_notifier_register(struct notifier_block *nb); +int hwmon_notifier_unregister(struct notifier_block *nb); +void hwmon_notify(unsigned long val, void *v); + /* Scale user input to sensible values */ static inline int SENSORS_LIMIT(long value, long low, long high) { |