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path: root/drivers/hwmon
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2014-04-03hwmon: (k10temp) Add support for AMD F16 M30h processorAravind Gopalakrishnan2-2/+3
Adding new PCI ID to support AMD F16 M30h processor (Mullins). While at it, modify Kconfig and Doc files to reflect the support for newer processors Note: PCI ID for this processor will make it into pci_ids.h as part of this patch: http://marc.info/?l=linux-kernel&m=139291362126057&w=2 which should be pulled into 3.15 when merge window opens (It currently sits in 'for-next' branch of bp.git- https://git.kernel.org/cgit/linux/kernel/git/bp/bp.git/log/?h=for-next) Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-04-03Merge branch 'next' of ↵Linus Torvalds3-0/+538
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull main powerpc updates from Ben Herrenschmidt: "This time around, the powerpc merges are going to be a little bit more complicated than usual. This is the main pull request with most of the work for this merge window. I will describe it a bit more further down. There is some additional cpuidle driver work, however I haven't included it in this tree as it depends on some work in tip/timer-core which Thomas accidentally forgot to put in a topic branch. Since I didn't want to carry all of that tip timer stuff in powerpc -next, I setup a separate branch on top of Thomas tree with just that cpuidle driver in it, and Stephen has been carrying that in next separately for a while now. I'll send a separate pull request for it. Additionally, two new pieces in this tree add users for a sysfs API that Tejun and Greg have been deprecating in drivers-core-next. Thankfully Greg reverted the patch that removes the old API so this merge can happen cleanly, but once merged, I will send a patch adjusting our new code to the new API so that Greg can send you the removal patch. Now as for the content of this branch, we have a lot of perf work for power8 new counters including support for our new "nest" counters (also called 24x7) under pHyp (not natively yet). We have new functionality when running under the OPAL firmware (non-virtualized or KVM host), such as access to the firmware error logs and service processor dumps, system parameters and sensors, along with a hwmon driver for the latter. There's also a bunch of bug fixes accross the board, some LE fixes, and a nice set of selftests for validating our various types of copy loops. On the Freescale side, we see mostly new chip/board revisions, some clock updates, better support for machine checks and debug exceptions, etc..." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (70 commits) powerpc/book3s: Fix CFAR clobbering issue in machine check handler. powerpc/compat: 32-bit little endian machine name is ppcle, not ppc powerpc/le: Big endian arguments for ppc_rtas() powerpc: Use default set of netfilter modules (CONFIG_NETFILTER_ADVANCED=n) powerpc/defconfigs: Enable THP in pseries defconfig powerpc/mm: Make sure a local_irq_disable prevent a parallel THP split powerpc: Rate-limit users spamming kernel log buffer powerpc/perf: Fix handling of L3 events with bank == 1 powerpc/perf/hv_{gpci, 24x7}: Add documentation of device attributes powerpc/perf: Add kconfig option for hypervisor provided counters powerpc/perf: Add support for the hv 24x7 interface powerpc/perf: Add support for the hv gpci (get performance counter info) interface powerpc/perf: Add macros for defining event fields & formats powerpc/perf: Add a shared interface to get gpci version and capabilities powerpc/perf: Add 24x7 interface headers powerpc/perf: Add hv_gpci interface header powerpc: Add hvcalls for 24x7 and gpci (Get Performance Counter Info) sysfs: create bin_attributes under the requested group powerpc/perf: Enable BHRB access for EBB events powerpc/perf: Add BHRB constraint and IFM MMCRA handling for EBB ...
2014-03-24powerpc/powernv: hwmon driver for power values, fan rpm and temperatureShivaprasad G Bhat3-0/+538
This patch adds basic kernel enablement for reading power values, fan speed rpm and temperature values on powernv platforms which will be exported to user space through sysfs interface. Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com> Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-03-20hwmon: (pmbus/ltc2978) Add support for LTM4676Guenter Roeck1-9/+11
The chip's programming interface is quite similar to LTC3880 and supports the same set of sensors. Reviewed-by: Robert Coulson <rob.coulson@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-06hwmon: (pmbus/ltc2978) Add new chip ID for LTC2974Guenter Roeck1-2/+3
LTC2974 datasheet revision C lists the chip ID for LTC2974 as 0x0213. Reviewed-by: Robert Coulson <rob.coulson@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: Do not accept invalid name attributesGuenter Roeck1-0/+5
hwmon name attributes must not include '-', as specified in Documentation/hwmon/sysfs-interface. Also filter out spaces, tabs, wildcards, and newline characters. Tested-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (max6639) Use SIMPLE_DEV_PM_OPS macroJingoo Han1-3/+1
Use SIMPLE_DEV_PM_OPS macro in order to make the code simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (lm95245) Make temp2_crit_hyst read-onlyGuenter Roeck1-2/+1
The hysteresis register is shared among both temperature sensors. This means changing one also affects the other. To avoid confusion, established way to express this is to make only the first instance writable and keep all other instances as read-only. Otherwise users may be confused that changing the second writable value also affects the first, while it is more obvious that a writable value may affect a different read-only value. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (lm95245) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck1-54/+26
Simplify code, reduce code size, and attach hwmon attributes to hwmon device. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (lm95245) Drop useless debug messageGuenter Roeck1-1/+0
It doesn't provide value to get a log message whenever the driver updates its cached data, so drop the message. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (lm95245) Fix hysteresis temperaturesGuenter Roeck1-10/+21
Hysteresis temperatures are defined as absolute temperatures, not as delta value from the critical temperatures. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (max6639) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck1-55/+26
Simplify code, reduce code size, and attach sysfs attricutes to hwmon device. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (max6639) Introduce local dev variable, and reduce noisinessGuenter Roeck1-7/+5
Introduce local variable 'dev' in probe function to make code easier to read. Also drop dev_info message in probe to reduce noisiness during boot. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (max6650) Introduce local 'dev' variableGuenter Roeck1-12/+12
This makes the code a bit easier to read. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (max6650) Drop error message after memory allocation failuresGuenter Roeck1-3/+1
The core code already generates an error message. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (max6650) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck1-49/+28
Simplify code, reduce code size, and attach sensor attributes to hwmon device. Reviewed-by: Jean Delvare <jdelvare@suse.de> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (max6650) Rearrange code to no longer require forward declarationsGuenter Roeck1-119/+109
Cleanup only; no functional change. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (ltc4215) Convert to devm_hwmon_device_register_with_groupsGuenter Roeck1-38/+13
Simplify code, reduce code size, and attach sysfs attributes to hwmon device. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (coretemp) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck1-39/+8
Simplify code, reduce code size, and attach sysfs attributes to hwmon device. For this driver, the only attribute created is the name attribute. Other attributes are still created and removed dynamically as cores are added or removed. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Tested-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (coretemp) Allocate platform data with devm_kzallocGuenter Roeck1-7/+5
This simplifies error handling. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Tested-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (coretemp) Use sysfs_create_group to create sysfs attributesGuenter Roeck1-13/+7
Instead of creating each attribute individually, use sysfs_create_group to create all attributes for one core with a single call. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Tested-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (ltc4245) Remove devicetree conditionalsGuenter Roeck1-4/+0
Devicetree functions are stubbed out if CONFIG_OF is undefined. Therefore, conditional compilation is unnecessary and can be removed. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (ltc4245) Drop debug messagesGuenter Roeck1-3/+0
The debug messages in this driver have little if any value. Drop them. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (ltc4245) Use device managed function to register hwmon deviceGuenter Roeck1-19/+4
This simplifies the code and reduces code size. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (max1668) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck1-49/+18
Simplify code, reduce code size, and attach hwmon attributes to hwmon device. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: (max1668) Don't hide return value from i2c_smbus_write_byte_dataGuenter Roeck1-6/+8
i2c_smbus_write_byte_data returns a valid error code. Return it to the user instead of replacing it with -EIO. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-03-03hwmon: Driver for TI ADC128D818Guenter Roeck3-0/+502
ADC128D818 is a System Monitor with Temperature Sensor. It is similar to LM80 and LM96080, but has 16 bit wide sensor registers and no fan speed monitoring. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: Sort Kconfig entries alphabeticallyJean Delvare1-308/+308
Entries have been added at more or less random positions over time, so it becomes difficult to find what you are looking for or figure out where to insert new entries. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (lm95245) Avoid initializing the same field twiceJean Delvare1-1/+0
data is kzalloc'd, so data->valid is already 0. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (lm95241) Avoid initializing the same field twiceJean Delvare1-2/+0
data is kzalloc'd, so data->valid and data->model are already 0. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (emc2103) Return error from i2c_smbus_read_byte_dataGuenter Roeck1-1/+1
There is no reason to replace one error with another. smatch message: drivers/hwmon/emc2103.c:352 set_fan_div() info: why not propagate 'status' from i2c_smbus_read_byte_data() instead of (-5)? Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (smm665): Return error from i2c_smbus_read_word_swappedGuenter Roeck1-1/+1
There is no reason to replace one error code with another, and returning -1 as error code is wrong anyway. Smatch log: drivers/hwmon/smm665.c:225 smm665_read_adc() info: why not propagate 'rv' from i2c_smbus_read_word_swapped() instead of (-1)? Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (ltc4260) Fix trivial typoAxel Lin1-1/+1
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (jz4740) Use devm_ioremap_resource()Jingoo Han1-20/+5
Use devm_ioremap_resource() in order to make the code simpler, and move 'struct resource *mem' from 'struct jz4740_hwmon' to jz4740_hwmon_probe() because the 'mem' variable is used only in jz4740_hwmon_probe(). Also the redundant return value check of platform_get_resource() is removed, because the value is checked by devm_ioremap_resource(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: Driver for Linear Technologies LTC2945Guenter Roeck3-0/+532
LTC2945 is a system monitor that measures current, voltage, and power. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: Driver for Linear Technologies LTC4260Guenter Roeck3-0/+213
LTC4260 is a Positive Voltage Hot Swap Controller. The driver currently only supports voltage monitoring, not voltage control. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: Driver for Linear Technologies LTC4222Guenter Roeck3-0/+250
Driver Linear Technologies LTC4222 Dual Hot Swap Controller The driver currently only supports voltage monitoring, not voltage control. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (iio_hwmon) Convert to use hwmon_device_register_with_groupsGuenter Roeck1-25/+12
Simplify code and create name attribute automatically. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03hwmon: (lm95241) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck1-61/+30
Simplify code, reduce code size, and attach hwmon attributes to hwmon device. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-02-19hwmon: (max1668) Fix writing the minimum temperatureGuenter Roeck1-1/+1
When trying to set the minimum temperature, the driver was erroneously writing the maximum temperature into the chip. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org # v3.2+ Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-02-14hwmon: (ntc_thermistor) Avoid math overflowDoug Anderson1-3/+3
The ntc thermistor code was doing math whose temporary result might have overflowed 32-bits. We need some casts in there to make it safe. In one example I found: - pullup_uV: 1800000 - result of iio_read_channel_raw: 3226 - 1800000 * 3226 => 0x15a1cbc80 Signed-off-by: Doug Anderson <dianders@chromium.org> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-02-07hwmon: (da9055) Remove use of regmap_irq_get_virq()Adam Thomson1-4/+0
Remove use of regmap_irq_get_virq() in driver probe which was conflicting with use of platform_get_irq_byname(). platform_get_irq_byname() already returns the VIRQ number due to MFD core translation so using regmap_irq_get_virq() on that returned value results in an incorrect IRQ being requested. The driver probes then fail because of this. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-02-03hwmon: (pmbus) Support per-page exponent in linear modeGuenter Roeck1-32/+36
Some chips use different exponents for sensors on different pages or rails. Detect and store exponent per page to support this situation. This fixes a problem with wrong voltages seen on UCD90120. Reported-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Tested-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-02-02hwmon: Fix SENSORS_TMP102 dependencies to eliminate build errorsJean Delvare1-0/+1
Similar to what was done for the lm75 driver. Add depends on THERMAL since that is what provides the register/unregister functions above, but only if THERMAL_OF was selected as this is an optional feature of the driver. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Randy Dunlap <rdunlap@infradead.org> Acked-by: Eduardo Valentin <eduardo.valentin@ti.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2014-02-02hwmon: Fix SENSORS_LM75 dependencies to eliminate build errorsJean Delvare1-0/+1
Based on an earlier attempt by Randy Dunlap. Fix SENSORS_LM75 dependencies to eliminate build errors: drivers/built-in.o: In function `lm75_remove': lm75.c:(.text+0x12bd8c): undefined reference to `thermal_zone_of_sensor_unregister' drivers/built-in.o: In function `lm75_probe': lm75.c:(.text+0x12c123): undefined reference to `thermal_zone_of_sensor_register' Add depends on THERMAL since that is what provides the register/unregister functions above, but only if THERMAL_OF was selected as this is an optional feature of the driver. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Randy Dunlap <rdunlap@infradead.org> Acked-by: Eduardo Valentin <eduardo.valentin@ti.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2014-01-30Merge branch 'hwmon-for-linus' of ↵Linus Torvalds32-68/+135
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging Pull hwmon updates from Jean Delvare: "This include it87 driver improvements, and a tree-wide change of my e-mail address" * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: Update Jean Delvare's e-mail address hwmon: (it87) Print proper names for the IT8771E and IT8772E hwmon: (it87) Add support for the ITE IT8603E
2014-01-29Update Jean Delvare's e-mail addressJean Delvare31-48/+47
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2014-01-29hwmon: (it87) Print proper names for the IT8771E and IT8772EJean Delvare1-0/+1
The driver prints IT8771F and IT8772F instead of IT8771E and IT8772E respectively when the driver is loaded. This is a cosmetic only bug but let's fix it. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2014-01-29hwmon: (it87) Add support for the ITE IT8603ERudolf Marek2-20/+87
Add support for IT8603E. This closes bug #57861: https://bugzilla.kernel.org/show_bug.cgi?id=57861 [JD: Fixes and clean-ups.] Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2014-01-25Merge branch 'next' of ↵Linus Torvalds2-5/+49
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: "This time, the biggest change is the work of representing hardware thermal properties in device tree infrastructure. This work includes the introduction of a device tree bindings for describing the hardware thermal behavior and limits, and also a parser to read and interpret the data, and build thermal zones and thermal binding parameters. It also contains three examples on how to use the new representation on sensor devices, using three different drivers to accomplish it. One driver is in thermal subsystem, the TI SoC thermal, and the other two drivers are in hwmon subsystem. Actually, this would be the first step of the complete work because we still need to check other potential drivers to be converted and then validate the proposed API. But the reason why I include it in this pull request is that, first, this change does not hurt any others without using this approach, second, the principle and concept of this change would not break after converting the remaining drivers. BTW, as you can see, there are several points in this change that do not belong to thermal subsystem. Because it has been suggested by Guenter R that in such cases, it is recommended to send the complete series via one single subsystem. Specifics: - representing hardware thermal properties in device tree infrastructure - fix a regression that the imx thermal driver breaks system suspend. - introduce ACPI INT3403 thermal driver to retrieve temperature data from the INT3403 ACPI device object present on some systems. - introduce debug statement for thermal core and step_wise governor. - assorted fixes and cleanups for thermal core, cpu cooling, exynos thrmal, intel powerclamp and imx thermal driver" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (34 commits) thermal: remove const flag from .ops of imx thermal Thermal: update thermal zone device after setting emul_temp intel_powerclamp: Fix cstate counter detection. thermal: imx: add necessary clk operation Thermal cpu cooling: return error if no valid cpu frequency entry thermal: fix cpu_cooling max_level behavior thermal: rcar-thermal: Enable driver compilation with COMPILE_TEST thermal: debug: add debug statement for core and step_wise thermal: imx_thermal: add module device table drivers: thermal: Mark function as static in x86_pkg_temp_thermal.c thermal:samsung: fix compilation warning thermal: imx: correct suspend/resume flow thermal: exynos: fix error return code Thermal: ACPI INT3403 thermal driver MAINTAINERS: add thermal bindings entry in thermal domain arm: dts: make OMAP4460 bandgap node to belong to OCP arm: dts: make OMAP443x bandgap node to belong to OCP arm: dts: add cooling properties on omap5 cpu node arm: dts: add omap5 thermal data arm: dts: add omap5 CORE thermal data ...
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