kernel/linux.git/drivers/hwmon/lm75.c, branch linux-4.4.y

hwmon: (lm75) Add support for TMP75C

2015-10-14T14:57:14+00:00

The TMP75C has a different control register layout and only supports 12-bit temperature samples (0.0625 deg C). The continuous sample rate is ~12 Hz. Signed-off-by: Ben Gardner Signed-off-by: Guenter Roeck

thermal: consistently use int for temperatures

2015-08-03T15:15:50+00:00

The thermal code uses int, long and unsigned long for temperatures in different places. Using an unsigned type limits the thermal framework to positive temperatures without need. Also several drivers currently will report temperatures near UINT_MAX for temperatures below 0°C. This will probably immediately shut the machine down due to overtemperature if started below 0°C. 'long' is 64bit on several architectures. This is not needed since INT_MAX °mC is above the melting point of all known materials. Consistently use a plain 'int' for temperatures throughout the thermal code and the drivers. This only changes the places in the drivers where the temperature is passed around as pointer, when drivers internally use another type this is not changed. Signed-off-by: Sascha Hauer Acked-by: Geert Uytterhoeven Reviewed-by: Jean Delvare Reviewed-by: Lukasz Majewski Reviewed-by: Darren Hart Reviewed-by: Heiko Stuebner Reviewed-by: Peter Feuerer Cc: Punit Agrawal Cc: Zhang Rui Cc: Eduardo Valentin Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Jean Delvare Cc: Peter Feuerer Cc: Heiko Stuebner Cc: Lukasz Majewski Cc: Stephen Warren Cc: Thierry Reding Cc: linux-acpi@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Cc: Guenter Roeck Cc: Rafael J. Wysocki Cc: Maxime Ripard Cc: Darren Hart Cc: lm-sensors@lm-sensors.org Signed-off-by: Zhang Rui

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux

2014-12-17T18:16:27+00:00

Pull thermal management update from Zhang Rui: "Summary: - of-thermal extension to allow drivers to register and use its functionality in a better way, without exploiting thermal core. From Lukasz Majewski. - Fix a bug in intel_soc_dts_thermal driver which calls a sleep function in interrupt handler. From Maurice Petallo. - add a thermal UAPI header file for exporting the thermal generic netlink information to user-space. From Florian Fainelli. - First round of refactoring in Exynos driver. Bartlomiej and Lukasz are attempting to make it lean and easier to understand. - New thermal driver for Rockchip (rk3288), with support for DT thermal. From Caesar Wang. - New thermal driver for Nvidia, Tegra124 SOCTHERM driver, with support for DT thermal. From Mikko Perttunen. - New cooling device, based on common clock framework. From Eduardo Valentin. - a couple of small fixes in thermal core framework. From Srinivas Pandruvada, Javi Merino, Luis Henriques. - Dropping Armada A375-Z1 SoC thermal support as the chip is not in the market, armada folks decided to drop its support. - a couple of small fixes and cleanups in int340x thermal driver" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (58 commits) thermal: provide an UAPI header file Thermal/int340x: Clear the error value of the last acpi_bus_get_device() call thermal/powerclamp: add id for braswell cpu thermal: Intel SoC DTS: Don't do thermal zone update inside spin_lock Thermal: fix platform_no_drv_owner.cocci warnings Thermal/int340x: avoid unnecessary pointer casting thermal: int3403: Delete a check before thermal_zone_device_unregister() thermal/int3400: export uuids thermal: of: Extend current of-thermal.c code to allow setting emulated temp thermal: of: Extend of-thermal to export table of trip points thermal: of: Rename struct __thermal_trip to struct thermal_trip thermal: of: Extend of-thermal.c to provide check if trip point is valid thermal: of: Extend of-thermal.c to provide number of trip points thermal: Fix error path in thermal_init() thermal: lock the thermal zone when switching governors thermal: core: ignore invalid trip temperature thermal: armada: Remove support for A375-Z1 SoC thermal: rockchip: add driver for thermal dt-bindings: document Rockchip thermal thermal: exynos: remove exynos_tmu_data.h include ...

hwmon: (lm75) Strengthen detect function

2014-12-05T18:18:02+00:00

A chip returning 0x00 in all registers is erroneously detected as LM75. Check hysteresis and temperature limit registers and abort if both are 0 to reduce the likelyhood for this to happen. Reviewed-by: Rob Coulson Reviewed-by: Jean Delvare Signed-off-by: Guenter Roeck

hwmon: (lm75) Add support for the NXP LM75B

2014-12-01T04:13:13+00:00

It is basically a faster lm75 with improved (11 bit) resolution. Signed-off-by: Michael Thalmeier Signed-off-by: Guenter Roeck

thermal: of: improve of-thermal sensor registration API

2014-11-20T14:44:54+00:00

Different drivers request API extensions in of-thermal. For this reason, additional callbacks are required to fit the new drivers needs. The current API implementation expects the registering sensor driver to provide a get_temp and get_trend callbacks as function parameters. As the amount of callbacks is growing, this patch changes the existing implementation to use a .ops field to hold all the of thermal callbacks to sensor drivers. This patch also changes the existing of-thermal users to fit the new API design. No functional change is introduced in this patch. Cc: Alexandre Courbot Cc: devicetree@vger.kernel.org Cc: Grant Likely Cc: Guenter Roeck Cc: Jean Delvare Cc: linux-kernel@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-tegra@vger.kernel.org Cc: lm-sensors@lm-sensors.org Cc: Rob Herring Cc: Stephen Warren Cc: Thierry Reding Cc: Zhang Rui Acked-by: Guenter Roeck Tested-by: Mikko Perttunen Reviewed-by: Mikko Perttunen Reviewed-by: Alexandre Courbot Reviewed-by: Lukasz Majewski Signed-off-by: Eduardo Valentin

hwmon: (lm75) Add support for TMP112

2014-08-04T14:01:34+00:00

TMP112 is compatible to LM75. Signed-off-by: Frans Klaver Signed-off-by: Guenter Roeck

hwmon: (lm75) Convert to use hwmon_device_register_with_groups

2014-05-21T23:02:21+00:00

Simplify code and attach hwmon attributes to hwmon device. Signed-off-by: Guenter Roeck

hwmon: lm75: expose to thermal fw via DT nodes

2013-12-04T13:34:24+00:00

This patch adds to lm75 temperature sensor the possibility to expose itself as thermal zone device, registered on the thermal framework. The thermal zone is built only if a device tree node describing a thermal zone for this sensor is present inside the lm75 DT node. Otherwise, the driver behavior will be the same. Note: This patch has also been reviewed by Jean D. He has requested to perform a wider inspection of possible users of thermal and hwmon interaction API. On the other hand, the change on this patch is acceptable on first step of overall code change. Cc: Jean Delvare Cc: lm-sensors@lm-sensors.org Cc: linux-kernel@vger.kernel.org Acked-by: Guenter Roeck Signed-off-by: Eduardo Valentin

hwmon: (lm75) Add support for GMT G751 chip

2013-11-18T22:08:05+00:00

This was tested on a NETGEAR ReadyNAS 2120 device (Marvell Armada XP based board, via DT). Signed-off-by: Arnaud Ebalard Signed-off-by: Guenter Roeck