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* | | | | | hwmon: (lm70) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (g760a) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (f75375s) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Cc: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (f71882fg) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (emc2103) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Cc: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (emc1403) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (ds620) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (dme1737) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Cc: Juerg Haefliger <juergh@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (asb100) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Cc: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (amc6821) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (adt7470) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (adt7462) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (adt7411) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Cc: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (ads7871) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (ads7828) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (ads1015) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Cc: Dirk Eibach <eibach@gdsys.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (adm1029) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Cc: Corentin Labbe <corentin.labbe@geomatys.fr> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (adcxx) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (ad7418) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (ad7414) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (ad7314) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (abituguru3) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Cc: Hans de Goede <hdegoede@redhat.com> Cc: Alistair John Strachan <alistair@devzero.co.uk> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (abituguru) Convert to use devm_ functionsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use devm_ functions to reduce code size and simplify the code. Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | | hwmon: (sch56xx-common) Fix build warningsGuenter Roeck2012-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix: warning: 'address' may be used uninitialized in this function warning: 'name' may be used uninitialized in this function While those are false warnings, the patch reduces module size on x86_64 by approximately 110 bytes, so it is still worth the effort. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Hans de Goede <hdegoede@redhat.com>
* | | | | | hwmon: (f71882fg) Fix build warningGuenter Roeck2012-09-24
| |_|_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix: warning: 'address' may be used uninitialized in this function [-Wuninitialized] While this is a false warning, the patch reduces module size on x86_64 by approximately 175 bytes, so it is still worth the effort. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Hans de Goede <hdegoede@redhat.com>
* | | | | hwmon: (fam15h_power) Tweak runavg_range on resumeAndreas Herrmann2012-09-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The quirk introduced with commit 00250ec90963b7ef6678438888f3244985ecde14 (hwmon: fam15h_power: fix bogus values with current BIOSes) is not only required during driver load but also when system resumes from suspend. The BIOS might set the previously recommended (but unsuitable) initilization value for the running average range register during resume. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Tested-by: Andreas Hartmann <andihartmann@01019freenet.de> Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@vger.kernel.org # 3.0+
* | | | | hwmon: (coretemp) Use get_online_cpus to avoid races involving CPU hotplugSilas Boyd-Wickizer2012-09-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | coretemp_init loops with for_each_online_cpu, adding platform_devices and sysfs interfaces, then calls register_hotcpu_notifier. There is a race if a CPU is offlined or onlined after the loop, but before register_hotcpu_notifier. The race might result in the absence of a platform_device+sysfs interface for an online CPU, or the presence of a platform_device+sysfs interface for an offline CPU. A similar race occurs during coretemp_exit, after the module calls unregister_hotcpu_notifier, but before it unregisters all devices, a CPU might offline and a device for an offline CPU will exist for a short while. This fix surrounds for_each_online_cpu and register_hotcpu_notifier with get_online_cpus+put_online_cpus; and surrounds unregister_hotcpu_notifier and device unregistering with get_online_cpus+put_online_cpus. Build tested. Signed-off-by: Silas Boyd-Wickizer <sbw@mit.edu> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | | | | hwmon: (via-cputemp) Use get_online_cpus to avoid races involving CPU hotplugSilas Boyd-Wickizer2012-09-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | via_cputemp_init loops with for_each_online_cpu, adding platform_devices, then calls register_hotcpu_notifier. If a CPU is offlined between the loop and register_hotcpu_notifier, then later onlined, via_cputemp_device_add will attempt to add platform devices with the same ID. A similar race occurs during via_cputemp_exit, after the module calls unregister_hotcpu_notifier, a CPU might offline and a device will exist for a CPU that is offline. This fix surrounds for_each_online_cpu and register_hotcpu_notifier with get_online_cpus+put_online_cpus; and surrounds unregister_hotcpu_notifier and device unregistering with get_online_cpus+put_online_cpus. Build tested. Signed-off-by: Silas Boyd-Wickizer <sbw@mit.edu> Acked-by: Harald Welte <laforge@gnumonks.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | | | | hwmon: (applesmc) Bump max waitParag Warudkar2012-09-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A heavy-load test on a MacBookPro6,1 is still showing a substantial amount of read errors. Increasing the maximum wait time to 128 ms resolves the issue. Signed-off-by: Parag Warudkar <parag.lkml@gmail.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | | | hwmon: (ad7314) Add 'name' sysfs attributeGuenter Roeck2012-09-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 'name' sysfs attribute is mandatory for hwmon devices, but was missing in this driver. Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org> Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
* | | | | hwmon: (ads7871) Add 'name' sysfs attributeGuenter Roeck2012-09-17
|/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 'name' sysfs attribute is mandatory for hwmon devices, but was missing in this driver. Cc: Paul Thomas <pthomas8589@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org> Acked-by: Paul Thomas <pthomas8589@gmail.com>
* | | | hwmon: (ina2xx) Fix word size register read and write operationsGuenter Roeck2012-09-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver uses be16_to_cpu and cpu_to_be16 to convert data in SMBus word operations from chip to host byte order. However, the data passed from and to the SMBus word API functions is in host byte order, not in chip byte order. Conversion should therefore use swab16 instead of be16 to change the byte order. Replace driver internal word conversion functions with SMBus API functions to solve the problem. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org # 3.5+ Acked-by: Jean Delvare <khali@linux-fr.org>
* | | | hwmon: (twl4030-madc-hwmon) Initialize uninitialized structure elementsGuenter Roeck2012-09-12
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | twl4030_madc_conversion uses do_avg and type structure elements of twl4030_madc_request. Initialize structure to avoid random operation. Fix for: Coverity CID 200794 Uninitialized scalar variable. Cc: Keerthy <j-keerthy@ti.com> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org> Acked-by: Keerthy <j-keerthy@ti.com>
* | | hwmon: (asus_atk0110) Add quirk for Asus M5A78LLuca Tettamanti2012-08-23
|/ / | | | | | | | | | | | | | | | | | | | | | | The old interface is bugged and reads the wrong sensor when retrieving the reading for the chassis fan (it reads the CPU sensor); the new interface works fine. Reported-by: Göran Uddeborg <goeran@uddeborg.se> Cc: stable@vger.kernel.org Tested-by: Göran Uddeborg <goeran@uddeborg.se> Signed-off-by: Luca Tettamanti <kronos.it@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* / sections: Fix section conflicts in drivers/hwmonAndi Kleen2012-08-18
|/ | | | | Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* Merge branch 'hwmon-for-linus' of ↵Linus Torvalds2012-07-30
|\ | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging Pull a howmon update from Jean Delvare. * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: struct x86_cpu_id arrays can be __initconst
| * hwmon: struct x86_cpu_id arrays can be __initconstJan Beulich2012-07-30
| | | | | | | | | | | | | | ... as being referenced from __init code only. Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | hwmon: (applesmc) Decode and act on read/write status codesHenrik Rydberg2012-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The behavior of the SMC has changed several times over the years, causing read failures in the driver. It seems the problem can be explained by a shift in SMC speed combined with improper action on status codes. We should first wait for the SMC to settle, which was the most frequent response on the old slow machines. Then, if the SMC is busy, we need to try again later by resending the command. This was the most likely response until 2012. Now, with a shorter wait time, we are again most likely to poll while the SMC is settling, and as a result we see high failure rates on many old and new models. With the distinction between busy and failure, we can also wait longer before retrying, without sacrificing speed. This seems to bring failures down to virtually zero on all models. Tested on: MBA1,1 MBA3,1 MBA5,1 MBA5,2 MBP9,2 Tested-by: Adam Somerville <adamsomerville@gmail.com> Tested-by: Hubert Eichner <hubert.georg.eichner@gmail.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | hwmon: (jc42) Don't reset hysteresis on device removalJean Delvare2012-07-27
| | | | | | | | | | | | | | | | | | | | | | | | Restoring the configuration register on device removal has the side effect of also resetting the hysteresis value. This is inconsistent as the other limits are not reset, only hysteresis. So, following the principle of least surprise, preserve the hysteresis value when restoring the configuration register. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | hwmon: (jc42) Simplify hysteresis maskJean Delvare2012-07-27
| | | | | | | | | | | | | | | | | | | | Define JC42_CFG_HYST_MASK as the mask _before_ shifting instead of after shifting. This simplifies the current code slightly, and will simplify the code to come even more. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | hwmon: (acpi_power_meter) Fix build warningGuenter Roeck2012-07-27
|/ | | | | | | | | | | | | | Commit c5dec0182256361a3f823316e8fb85263f76efe7 (acpi_power_meter: Use struct dev_pm_ops for power management) introduced the following build warning. It is seen if CONFIG_PM_SLEEP is not defined. acpi_power_meter.c:930:12: warning: acpi_power_meter_resume defined but not used Fix it. Cc: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
* Merge branch 'for-linus' of ↵Linus Torvalds2012-07-24
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree from Jiri Kosina: "Trivial updates all over the place as usual." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (29 commits) Fix typo in include/linux/clk.h . pci: hotplug: Fix typo in pci iommu: Fix typo in iommu video: Fix typo in drivers/video Documentation: Add newline at end-of-file to files lacking one arm,unicore32: Remove obsolete "select MISC_DEVICES" module.c: spelling s/postition/position/g cpufreq: Fix typo in cpufreq driver trivial: typo in comment in mksysmap mach-omap2: Fix typo in debug message and comment scsi: aha152x: Fix sparse warning and make printing pointer address more portable. Change email address for Steve Glendinning Btrfs: fix typo in convert_extent_bit via: Remove bogus if check netprio_cgroup.c: fix comment typo backlight: fix memory leak on obscure error path Documentation: asus-laptop.txt references an obsolete Kconfig item Documentation: ManagementStyle: fixed typo mm/vmscan: cleanup comment error in balance_pgdat mm: cleanup on the comments of zone_reclaim_stat ...
| * Change email address for Steve GlendinningSteve Glendinning2012-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | | I no longer have a mailbox at smsc.com, and I've had two reports that that email address now bounces from people trying to contact me. This patch updates all references to that invalid address to one that I can be contacted on more permanently. This patch also updates the maintainer status to reflect the fact I'm no longer directly paid to maintain these drivers. Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | Merge tag 'hwmon-for-linus' of ↵Linus Torvalds2012-07-24
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: "New drivers for DA9052/53 PMIC as well as HIH-6130/HIH-6131 humidity and temperature sensors. Convert drivers to use devm_ functions and to use dev_pm_ops. Address a couple of Coverity errors/warnings as well as compile warnings. Some functional improvements in applesmc driver." * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (72 commits) hwmon: (applesmc) Ignore some temperature registers hwmon: (applesmc) Allow negative temperature values hwmon: (s3c-hwmon) Use devm_kzalloc instead of kzalloc hwmon: (w83781d) Fix compile warning hwmon: (applesmc) Shorten minimum wait time hwmon: (exynos4_tmu) Use struct dev_pm_ops for power management hwmon: (gpio-fan) Use struct dev_pm_ops for power management hwmon: (abituguru3) Use struct dev_pm_ops for power management hwmon: (abituguru) Use struct dev_pm_ops for power management hwmon: (acpi_power_meter) Fix unintentional integer overflow hwmon: (acpi_power_meter) Cleanup and optimizations hwmon: Honeywell Humidicon HIH-6130/HIH-6131 humidity and temperature sensor driver hwmon: (applesmc) Skip sensor mapping hwmon: (ntc_thermistor) Ensure that data->name string is terminated hwmon: (w83l785ts) Convert to use devm_ functions hwmon: (w83l785ts) Simplify code and improve readability hwmon: (smsc47m192) Convert to use devm_ functions hwmon: (smsc47m1) Convert to use devm_ functions hwmon: (smsc47b397) Convert to use devm_ functions hwmon: (k8temp) Convert to use devm_ functions ...
| * | hwmon: (applesmc) Ignore some temperature registersHenrik Rydberg2012-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | Not all sensors in the T range are useful temperatures. This patch creates a subset of sensors to be exported to userland, excluding the unknown types. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | hwmon: (applesmc) Allow negative temperature valuesHenrik Rydberg2012-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are many userland reports of sensors with unreasonably small and large temperatures. There seem to be several reasons for this: Firstly, the major sensor type (sp78) is actually a signed number. This explains why some sensors show very small or large values - they are in fact all small, but of different sign. Secondly, the other sensor type (1-hex) is not properly understood; it may be that it is not a temperature after all. Thirdly, some sensors are differential in nature, showing changes over time rather than absolute numbers. This explains why those values are small and of varying sign. This patch interprets the sp78 type as signed short, but keeps the original scaling. For other types, -EINVAL is returned, since the nature of those sensors is unknown. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | hwmon: (s3c-hwmon) Use devm_kzalloc instead of kzallocSachin Kamat2012-07-22
| | | | | | | | | | | | | | | | | | | | | This makes the code simpler as explicit freeing is not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | hwmon: (w83781d) Fix compile warningGuenter Roeck2012-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following compile warning may be seen if the driver is compiled with -Wuninitialized: drivers/hwmon/w83781d.c: warning: 'sc_addr[1]' may be used uninitialized in this function [-Wuninitialized] While this is a false positive, it is annoying in nightly builds, and may help to conceal real problems. The current code is quite tricky, and and it is easy to rearrage the code to make the warning disappear. So fix it. Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | hwmon: (applesmc) Shorten minimum wait timeHenrik Rydberg2012-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 2012 series of MacBooks have a faster SMC, and the current driver timings do not work at all. Tests show that decreasing the minimum wait time, from 64 us to 16 us, works well. Since this is still larger than the original minimum of 10 us used before 2008, there is nothing inherently problematic with changing it. The fail frequency on older machines seems to increase slightly, but not enough to be noticeable. Tested on MBA11, MBA31, MBA5,2, MBP9,2. The patch was originally written by adamski99 (ubuntuforums.org) and later tested by janhouse (bbs.archlinux.org). Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| * | hwmon: (exynos4_tmu) Use struct dev_pm_ops for power managementRafael J. Wysocki2012-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the Exynos4 TMU driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct platform_driver. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> [linux@roeck-us.net: CONFIG_PM->CONFIG_PM_SLEEP, and remove unnecessary ()] Signed-off-by: Guenter Roeck <linux@roeck-us.net>