linux/drivers/hwmon, branch v4.9

hwmon: (core) fix resource leak on devm_kcalloc failure

2016-10-24T13:05:13Z

If dev_kcalloc fails to allocate hw_dev->groups then the current exit path is a direct return, causing a leak of resources such as hwdev and ida is not removed. Fix this by exiting via the free_hwmon exit path that performs the necessary resource cleanup. Signed-off-by: Colin Ian King Signed-off-by: Guenter Roeck

hwmon: (max31790) potential ERR_PTR dereference

2016-10-17T17:16:20Z

We should only dereference "data" after we check if it is an error pointer. Fixes: 54187ff9d766 ('hwmon: (max31790) Convert to use new hwmon registration API') Signed-off-by: Dan Carpenter Signed-off-by: Guenter Roeck

hwmon: (adm9240) handle temperature readings below 0

2016-10-17T17:16:20Z

Unlike the temperature thresholds the temperature data is a 9-bit signed value. This allows and additional 0.5 degrees of precision on the reading but makes handling negative values slightly harder. In order to have sign-extension applied correctly the 9-bit value is stored in the upper bits of a signed 16-bit value. When presenting this in sysfs the value is shifted and scaled appropriately. Signed-off-by: Chris Packham Signed-off-by: Guenter Roeck

Merge tag 'hwmon-for-linus-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

2016-10-04T17:56:14Z

Pull hwmon updates from Guenter Roeck: - New hwmon registration API, including ports of several drivers to the new API - New hwmon driver for APM X-Gene SoC - Added support for UCD90160, DPS-460, DPS-800, and SGD009 PMBUs chips - Various cleanups, minor improvements, and fixes in several drivers * tag 'hwmon-for-linus-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (54 commits) hwmon: (nct6775) Add support for multiple virtual temperature sources hwmon: (adt7470) No need for additional synchronization on kthread_stop() hwmon: (lm95241) Update module description to include LM95231 hwmon: (lm95245) Select REGMAP_I2C hwmon: (ibmpowernv) Fix label for cores numbers not threads hwmon: (adt7470) Allow faster removal hwmon: (adt7470) Add write support to alarm_mask hwmon: (xgene) access mailbox as RAM hwmon: (lm95245) Use new hwmon registration API hwmon: (lm95241) Convert to use new hwmon registration API hwmon: (jc42) Convert to use new hwmon registration API hwmon: (max31790) Convert to use new hwmon registration API hwmon: (nct7904) Convert to use new hwmon registration API hwmon: (ltc4245) Convert to use new hwmon registration API hwmon: (tmp421) Convert to use new hwmon registration API hwmon: (tmp102) Convert to use new hwmon registration API hwmon: (lm90) Convert to use new hwmon registration API hwmon: (lm75) Convert to use new hwmon registration API hwmon: (xgene) Fix crash when alarm occurs before driver probe hwmon: (iio_hwmon) defer probe when no channel is found ...

hwmon: (nct6775) Add support for multiple virtual temperature sources

2016-09-18T22:32:35Z

For virtual temperatures, the actual temperature values are written by software, presumably by the BIOS. This functionality is (as of right now) supported on NCT6791D, NCT6792D, and NCT6793D. On those chips, the temperatures are written into registers 0xea..0xef on page 0. This is known to be used on some Asus motherboards, where the actual temperature source can be configured in the BIOS. Report the 'virtual' temperatures for all monotoring sources to address this situation. Example for the resulting output (as seen with the 'sensors' command): nct6791-isa-0290 Adapter: ISA adapter ... Virtual_TEMP: +31.0°C PECI Agent 0: +38.5°C Virtual_TEMP: +32.0°C ... Signed-off-by: Guenter Roeck

hwmon: (adt7470) No need for additional synchronization on kthread_stop()

2016-09-18T17:10:26Z

The kthread_stop() waits for the thread to exit. There is no need for an additional synchronization needed to join on the kthread. The completion was added by 89fac11cb3e7 ("adt7470: make automatic fan control really work"). Signed-off-by: Daniel Wagner Cc: Darrick J. Wong Cc: Jean Delvare Cc: Guenter Roeck Signed-off-by: Guenter Roeck

hwmon: (lm95241) Update module description to include LM95231

2016-09-13T14:28:01Z

This driver also supports LM95231. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck

hwmon: (lm95245) Select REGMAP_I2C

2016-09-13T14:27:34Z

This driver now uses regmap APIs, so it needs to select REGMAP_I2C. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck

hwmon: (ibmpowernv) Fix label for cores numbers not threads

2016-09-13T14:27:05Z

Currently the label says "Core" but lists the thread numbers. This ends up looking like this: # cat /sys/class/hwmon/hwmon0/temp[1-4]_label Core 0-7 Core 8-15 Core 16-23 Core 24-31 This is misleading as it looks like it's cores 0-7 when it's actually threads 0-7. This changes the print to just give the core number, so the output now looks like this: # cat /sys/class/hwmon/hwmon0/temp[1-4]_label Core 0 Core 8 Core 16 Core 24 Signed-off-by: Michael Neuling Acked-by: Cédric Le Goater Signed-off-by: Guenter Roeck

hwmon: (adt7470) Allow faster removal

2016-09-10T23:21:09Z

adt7470_remove will wait for the update thread to complete before returning. This had a worst-case time of up to the user-configurable auto_update_interval. Replace msleep_interruptible with set_current_state and schedule_timeout so that kthread_stop will interrupt the sleep. Signed-off-by: Joshua Scott Signed-off-by: Guenter Roeck