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path: root/drivers/hwmon
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2014-05-21hwmon: (emc1403) Make all hyst attributes except for temp1_crit_hyst read-onlyGuenter Roeck
All chips in this chip series only support a single hysteresis value. Having multiple writable hysteresis attributes is therefore confusing, since a single write affects all hysteresis temperatures. Make all but one (temp1_crit_hyst) read-only. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (emc1403) Add support for alarm and diode fault status on EMC14x2Guenter Roeck
Alarm and fault status register on EMC1402, EMC1412, and EMC1422 is reported in a different register than with other chips. Add support for it. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (emc1403) Report external diode fault statusGuenter Roeck
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (emc1403) Convert to use regmapGuenter Roeck
Convert to regmap to be able to use its register caching mechanism. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (emc1403) Add support for emc14x2Josef Gajdusek
Add support for emc1402/emc1412/emc1422 temperature monitoring chips. This line of sensors only has 2 temperature channels (internal and external) in comparison to the emc14x3 (3 channels) and emc14x4 (4 channels). Signed-off-by: Josef Gajdusek <atx@atx.name> [Guenter Roeck: ordered i2c address list, updated description/headline] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (adm1029) Update Corentin Labbe's emailLABBE Corentin
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (iio_hwmon) Make of_device_id array constJingoo Han
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (gpio-fan) Make of_device_id array constJingoo Han
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (g762) Make of_device_id array constJingoo Han
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (ltc2945) Fix 1st comment lineGuenter Roeck
Somehow a couple of spaces got added to the first line. Remove them. No code change. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (vt1211) remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (s3c-hwmon) remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (pc87427) remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (max197) remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (max1111) remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm93) remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (ibmpex) remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Jean Delvare <jdelvare@suse.de> Acked-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (f71805f) remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm92) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck
Use devm_hwmon_device_register_with_groups API to attach attributes to hwmon device, simplify code, and reduce code size. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm92) Drop function macrosGuenter Roeck
Function macros obfuscate code and increase code size, so drop them. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm92) Drop FSF mailing addressGuenter Roeck
The FSF mailing address may change, so drop it. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm92) Drop unnecessary forward declarationGuenter Roeck
Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm75) Convert to use hwmon_device_register_with_groupsGuenter Roeck
Simplify code and attach hwmon attributes to hwmon device. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm77) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck
Use devm_hwmon_device_register_with_groups API to attach attributes to hwmon device, simplify code, and reduce code size. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm77) Drop function macrosGuenter Roeck
Function macros make the code harder to read and increase code size, so drop them. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm77) Do not preserve hysteresis when updating critical temp limitGuenter Roeck
Updating the hysteresis value when updating the critical temperature limit was following the rule of 'least surprise'. However, it had the undesirable side effect of changing the hysteresis for all other attributes, which defeats the purpose of least surprise. In addition, it could result in invalid hysteresis values if the resulting hysteresis was too large. In such cases the resulting hysteresis ended up changed anyway, which again defeats the purpose. So drop that code and document the new behavior. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm77) Rearrange code to no longer require forward declarationsGuenter Roeck
Forward declarations are easy to avoid and unnecessary. Rearrange code to avoid it. No functional change. Acked-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm77) Drop FSF mailing addressGuenter Roeck
The FSF mailing address changes over time, so drop it. No functional change. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (tmp421) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck
Use devm_hwmon_device_register_with_groups API to attach attributes to hwmon device, simplify code, and reduce code size. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (tmp102) Convert to use hwmon_device_register_with_groupsGuenter Roeck
Simplify code, reduce code size, and attach sysfs attributes to hwmon device. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (tmp102) Introduce dev variable in probe functionGuenter Roeck
The pointer to client->dev is used several times in the probe function. Simplify code by introducing a separate variable for it. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21hwmon: (lm70) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck
Use devm_hwmon_device_register_with_groups API to attach attributes to hwmon device, simplify code, and reduce code size. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-15mfd: vexpress: Convert custom func API to regmapPawel Moll
Components of the Versatile Express platform (configuration microcontrollers on motherboard and daughterboards in particular) talk to each other over a custom configuration bus. They provide miscellaneous functions (from clock generator control to energy sensors) which are represented as platform devices (and Device Tree nodes). The transactions on the bus can be generated by different "bridges" in the system, some of which are universal for the whole platform (for the price of high transfer latencies), others restricted to a subsystem (but much faster). Until now drivers for such functions were using custom "func" API, which is being replaced in this patch by regmap calls. This required: * a rework (and move to drivers/bus directory, as suggested by Samuel and Arnd) of the config bus core, which is much simpler now and uses device model infrastructure (class) to keep track of the bridges; non-DT case (soon to be retired anyway) is simply covered by a special device registration function * the new config-bus driver also takes over device population, so there is no need for special matching table for of_platform_populate nor "simple-bus" hack in the arm64 model dtsi file (relevant bindings documentation has been updated); this allows all the vexpress devices fit into normal device model, making it possible to remove plenty of early inits and other hacks in the near future * adaptation of the syscfg bridge implementation in the sysreg driver, again making it much simpler; there is a special case of the "energy" function spanning two registers, where they should be both defined in the tree now, but backward compatibility is maintained in the code * modification of the relevant drivers: * hwmon - just a straight-forward API change * power/reset driver - API change * regulator - API change plus error handling simplification * osc clock driver - this one required larger rework in order to turn in into a standard platform driver Signed-off-by: Pawel Moll <pawel.moll@arm.com> Acked-by: Mark Brown <broonie@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Mike Turquette <mturquette@linaro.org>
2014-05-12hwmon: (emc1403) Support full range of known chip revision numbersJosef Gajdusek
The datasheet for EMC1413/EMC1414, which is fully compatible to EMC1403/1404 and uses the same chip identification, references revision numbers 0x01, 0x03, and 0x04. Accept the full range of revision numbers from 0x01 to 0x04 to make sure none are missed. Signed-off-by: Josef Gajdusek <atx@atx.name> Cc: stable@vger.kernel.org [Guenter Roeck: Updated headline and description] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-12hwmon: (emc1403) Fix resource leak on module unloadJean Delvare
Commit 454aee17f claims to convert driver emc1403 to use devm_hwmon_device_register_with_groups, however the patch itself makes use of hwmon_device_register_with_groups instead. As the driver remove function was still dropped, the hwmon device is no longer unregistered on driver removal, leading to a resource leak. Signed-off-by: Jean Delvare <jdelvare@suse.de> Fixes: 454aee17f hwmon: (emc1403) Convert to use devm_hwmon_device_register_with_groups Cc: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org [3.13+] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-12hwmon: (emc1403) fix inverted store_hyst()Josef Gajdusek
Attempts to set the hysteresis value to a temperature below the target limit fails with "write error: Numerical result out of range" due to an inverted comparison. Signed-off-by: Josef Gajdusek <atx@atx.name> Reviewed-by: Jean Delvare <jdelvare@suse.de> Cc: stable@vger.kernel.org [Guenter Roeck: Updated headline and description] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-01Revert "hwmon: (coretemp) Refine TjMax detection"Guenter Roeck
This reverts commit 9fb6c9c73b11bef65ba80a362547fd116c1e1c9d. Tjmax on some Intel CPUs is below 85 degrees C. One known example is L5630 with Tjmax of 71 degrees C. There are other Xeon processors with Tjmax of 70 or 80 degrees C. Also, the Intel IA32 System Programming document states that the temperature target is in bits 23:16 of MSR 0x1a2 (MSR_TEMPERATURE_TARGET), which is 8 bits, not 7. So even if turbostat uses similar checks to validate Tjmax, there is no evidence that the checks are actually required. On the contrary, the checks are known to cause problems and therefore need to be removed. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=75071. Fixes: 9fb6c9c hwmon: (coretemp) Refine TjMax detection Reviewed-by: Jean Delvare <jdelvare@suse.de> Cc: stable@vger.kernel.org # 3.14+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-04-24hwmon: (ltc2945) Don't crash the kernel unnecessarilyGuenter Roeck
An implementation error should not crash the kernel if it is avoidable. Replace BUG() with WARN_ONCE(). Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-04-24hwmon: (vexpress) Avoid creating non-existing attributesPawel Moll
The 'label' attribute was always created but returned -ENOENT if there is no label and such behaviour is undefined from libsensors' point of view. Fixed by providing is_visible method in the attributes group, so the attribute is not created at all when unnecessary. Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-04-24hwmon: (vexpress) Use legal hwmon device namesPawel Moll
The driver used to directly us a DT 'compatible' property for the 'name' attribute of the hwmon devices. Unfortunately it contains '-' which is illegal in this context. It messes up libsensors and thus every application using it. Fixed by providing equivalent (and simpler) name strings. Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-04-09Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull more powerpc updates from Ben Herrenschmidt: "Here are a few more powerpc things for you. So you'll find here the conversion of the two new firmware sysfs interfaces to the new API for self-removing files that Greg and Tejun introduced, so they can finally remove the old one. I'm also reverting the hwmon driver for powernv. I shouldn't have merged it, I got a bit carried away here. I hadn't realized it was never CCed to the relevant maintainer(s) and list(s), and happens to have some issues so I'm taking it out and it will come back via the proper channels. The rest is a bunch of LE fixes (argh, some of the new stuff was broken on LE, I really need to start testing LE myself !) and various random fixes here and there. Finally one bit that's not strictly a fix, which is the HVC OPAL change to "kick" the HVC thread when the firmware tells us there is new incoming data. I don't feel like waiting for this one, it's simple enough, and it makes a big difference in console responsiveness which is good for my nerves" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (26 commits) powerpc/powernv Adapt opal-elog and opal-dump to new sysfs_remove_file_self Revert "powerpc/powernv: hwmon driver for power values, fan rpm and temperature" power, sched: stop updating inside arch_update_cpu_topology() when nothing to be update powerpc/le: Avoid creatng R_PPC64_TOCSAVE relocations for modules. arch/powerpc: Use RCU_INIT_POINTER(x, NULL) in platforms/cell/spu_syscalls.c powerpc/opal: Add missing include powerpc: Convert last uses of __FUNCTION__ to __func__ powerpc: Add lq/stq emulation powerpc/powernv: Add invalid OPAL call powerpc/powernv: Add OPAL message log interface powerpc/book3s: Fix mc_recoverable_range buffer overrun issue. powerpc: Remove dead code in sycall entry powerpc: Use of_node_init() for the fakenode in msi_bitmap.c powerpc/mm: NUMA pte should be handled via slow path in get_user_pages_fast() powerpc/powernv: Fix endian issues with sensor code powerpc/powernv: Fix endian issues with OPAL async code tty/hvc_opal: Kick the HVC thread on OPAL console events powerpc/powernv: Add opal_notifier_unregister() and export to modules powerpc/ppc64: Do not turn AIL (reloc-on interrupts) too early powerpc/ppc64: Gracefully handle early interrupts ...
2014-04-09Revert "powerpc/powernv: hwmon driver for power values, fan rpm and temperature"Benjamin Herrenschmidt
This reverts commit 0de7f8a917b5202014430e0055c0e1db0348bd62. This driver wasn't merged via the proper maintainers (my fault ... ooops !) and has serious issues so let's take it out for now and have a new better one be merged the right way Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> ---
2014-04-07Merge tag 'cpu-hotplug-3.15-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull CPU hotplug notifiers registration fixes from Rafael Wysocki: "The purpose of this single series of commits from Srivatsa S Bhat (with a small piece from Gautham R Shenoy) touching multiple subsystems that use CPU hotplug notifiers is to provide a way to register them that will not lead to deadlocks with CPU online/offline operations as described in the changelog of commit 93ae4f978ca7f ("CPU hotplug: Provide lockless versions of callback registration functions"). The first three commits in the series introduce the API and document it and the rest simply goes through the users of CPU hotplug notifiers and converts them to using the new method" * tag 'cpu-hotplug-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits) net/iucv/iucv.c: Fix CPU hotplug callback registration net/core/flow.c: Fix CPU hotplug callback registration mm, zswap: Fix CPU hotplug callback registration mm, vmstat: Fix CPU hotplug callback registration profile: Fix CPU hotplug callback registration trace, ring-buffer: Fix CPU hotplug callback registration xen, balloon: Fix CPU hotplug callback registration hwmon, via-cputemp: Fix CPU hotplug callback registration hwmon, coretemp: Fix CPU hotplug callback registration thermal, x86-pkg-temp: Fix CPU hotplug callback registration octeon, watchdog: Fix CPU hotplug callback registration oprofile, nmi-timer: Fix CPU hotplug callback registration intel-idle: Fix CPU hotplug callback registration clocksource, dummy-timer: Fix CPU hotplug callback registration drivers/base/topology.c: Fix CPU hotplug callback registration acpi-cpufreq: Fix CPU hotplug callback registration zsmalloc: Fix CPU hotplug callback registration scsi, fcoe: Fix CPU hotplug callback registration scsi, bnx2fc: Fix CPU hotplug callback registration scsi, bnx2i: Fix CPU hotplug callback registration ...
2014-04-05Merge branch 'hwmon-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging Pull hwmon updates from Jean Delvare: "This includes a number of driver conversions to devm_hwmon_device_register_with_groups, a few cleanups, and support for the ITE IT8623E" * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: (it87) Add support for IT8623E hwmon: (it87) Fix IT8603E define name hwmon: (lm90) Convert to use hwmon_device_register_with_groups hwmon: (lm90) Create all sysfs groups in one call hwmon: (lm90) Always use the dev variable in the probe function hwmon: (lm90) Create most optional attributes with sysfs_create_group hwmon: Avoid initializing the same field twice hwmon: (pc87360) Avoid initializing the same field twice hwmon: (lm80) Convert to use devm_hwmon_device_register_with_groups hwmon: (adm1021) Convert to use devm_hwmon_device_register_with_groups hwmon: (lm63) Avoid initializing the same field twice hwmon: (lm63) Convert to use devm_hwmon_device_register_with_groups hwmon: (lm63) Create all sysfs groups in one call hwmon: (lm63) Introduce 'dev' variable to point to client->dev hwmon: (lm63) Add additional sysfs group for temp2_type attribute hwmon: (f71805f) Fix author's address
2014-04-04hwmon: (it87) Add support for IT8623ERudolf Marek
Add support for the IT8623E found on Asus motherboards. It has same hardware monitoring block as IT8603E. Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04hwmon: (it87) Fix IT8603E define nameRudolf Marek
Fix small typo in the define name for IT8603E. Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04hwmon: (lm90) Convert to use hwmon_device_register_with_groupsGuenter Roeck
Simplify code, reduce code size, and attach hwmon attributes to hwmon device. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04hwmon: (lm90) Create all sysfs groups in one callGuenter Roeck
Create all sysfs groups in one call by using sysfs_create_groups instead of calling sysfs_create_group individually for each group. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04hwmon: (lm90) Always use the dev variable in the probe functionGuenter Roeck
Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04hwmon: (lm90) Create most optional attributes with sysfs_create_groupGuenter Roeck
With the new hwmon API, all attributes have to be created as groups. Use sysfs_create_group and sysfs_remove_group instead of device_create_file and device_remove_file to prepare for the new API. Exception is the 'pec' attribute which will stay with the i2c device. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jean Delvare <jdelvare@suse.de>