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2020-01-23hwmon: (k10temp) Show core and SoC current and voltages on Ryzen CPUsGuenter Roeck1-3/+131
Ryzen CPUs report core and SoC voltages and currents. Add support for it to the k10temp driver. For the time being, only report voltages and currents for Ryzen CPUs. Threadripper and EPYC appear to use a different mechanism. Tested-by: Brad Campbell <lists2009@fnarfbargle.com> Tested-by: Bernhard Gebetsberger <bernhard.gebetsberger@gmx.at> Tested-by: Holger Kiehl <holger.kiehl@dwd.de> Tested-by: Michael Larabel <michael@phoronix.com> Tested-by: Jonathan McDowell <noodles@earth.li> Tested-by: Ken Moffat <zarniwhoop73@googlemail.com> Tested-by: Darren Salt <devspam@moreofthesa.me.uk> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (k10temp) Report temperatures per CPU dieGuenter Roeck1-1/+79
Zen2 reports reporting temperatures per CPU die (called Core Complex Dies, or CCD, by AMD). Add support for it to the k10temp driver. Tested-by: Brad Campbell <lists2009@fnarfbargle.com> Tested-by: Bernhard Gebetsberger <bernhard.gebetsberger@gmx.at> Tested-by: Holger Kiehl <holger.kiehl@dwd.de> Tested-by: Michael Larabel <michael@phoronix.com> Tested-by: Jonathan McDowell <noodles@earth.li> Tested-by: Ken Moffat <zarniwhoop73@googlemail.com> Tested-by: Darren Salt <devspam@moreofthesa.me.uk> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hmon: (k10temp) Convert to use devm_hwmon_device_register_with_infoGuenter Roeck1-101/+112
Convert driver to use devm_hwmon_device_register_with_info to simplify the code and to reduce its size. Old size (x86_64): text data bss dec hex filename 8247 4488 64 12799 31ff drivers/hwmon/k10temp.o New size: text data bss dec hex filename 6778 2792 64 9634 25a2 drivers/hwmon/k10temp.o Tested-by: Brad Campbell <lists2009@fnarfbargle.com> Tested-by: Bernhard Gebetsberger <bernhard.gebetsberger@gmx.at> Tested-by: Holger Kiehl <holger.kiehl@dwd.de> Tested-by: Michael Larabel <michael@phoronix.com> Tested-by: Jonathan McDowell <noodles@earth.li> Tested-by: Ken Moffat <zarniwhoop73@googlemail.com> Tested-by: Darren Salt <devspam@moreofthesa.me.uk> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (k10temp) Use bitopsGuenter Roeck1-6/+10
Using bitops makes bit masks and shifts easier to read. Tested-by: Brad Campbell <lists2009@fnarfbargle.com> Tested-by: Bernhard Gebetsberger <bernhard.gebetsberger@gmx.at> Tested-by: Holger Kiehl <holger.kiehl@dwd.de> Tested-by: Michael Larabel <michael@phoronix.com> Tested-by: Jonathan McDowell <noodles@earth.li> Tested-by: Ken Moffat <zarniwhoop73@googlemail.com> Tested-by: Darren Salt <devspam@moreofthesa.me.uk> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pwm-fan) stop fan on shutdownAkinobu Mita1-2/+13
The pwm-fan driver stops the fan in suspend but leaves the fan on in shutdown. It seems strange to leave the fan on in shutdown because there is no use case in my mind and the gpio-fan driver on the other hand stops in shutdown. This change turns off the fan in shutdown. If anyone complains then we'll add an optional property to switch the behavior. Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Kamil Debski <kamil@wypas.org> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Link: https://lore.kernel.org/r/1579534344-11694-1-git-send-email-akinobu.mita@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (adm1177) Add ADM1177 Hot Swap Controller and Digital Power Monitor ↵Beniamin Bia3-0/+299
driver ADM1177 is a Hot Swap Controller and Digital Power Monitor with Soft Start Pin. Datasheet: Link: https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1177.pdf Signed-off-by: Beniamin Bia <beniamin.bia@analog.com> Link: https://lore.kernel.org/r/20200114112159.25998-1-beniamin.bia@analog.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus) Add support for Infineon Multi-phase xdpe122 family controllersVadim Pasternak3-0/+127
Add support for devices XDPE12254, XDPE12284. All these device support two pages. The below lists of VOUT_MODE command readout with their related VID protocols, Digital to Analog Converter steps, supported by these devices: VR12.0 mode, 5-mV DAC - 0x01; VR12.5 mode, 10-mV DAC - 0x02; IMVP9 mode, 5-mV DAC - 0x03; AMD mode 6.25mV - 0x10. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Link: https://lore.kernel.org/r/20200113150841.17670-5-vadimp@mellanox.com [groeck: Added missing break statement] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus/tps53679) Extend device list supported by driverVadim Pasternak2-2/+4
Extends driver with support of the additional devices: Texas Instruments Dual channel DCAP+ multiphase controllers: TPS53688. Extend Kconfig with added device. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Link: https://lore.kernel.org/r/20200113150841.17670-4-vadimp@mellanox.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus/core) Add support for Intel IMVP9 and AMD 6.25mV modesVadim Pasternak2-1/+9
Extend "vrm_version" with the type for Intel IMVP9 and AMD 6.25mV VID modes. Add calculation for those types. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Link: https://lore.kernel.org/r/20200113150841.17670-3-vadimp@mellanox.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus/core) Add support for vid mode detection per page basesVadim Pasternak6-46/+53
Add support for VID protocol detection per page bases, instead of detecting it based on "PMBU_VOUT" readout from page 0 for all the pages supported by particular device. The reason that some devices allows to configure different VID modes per page within the same device. Patch modifies the field "vrm_version" within the structure "pmbus_driver_info" to be per page array. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Link: https://lore.kernel.org/r/20200113150841.17670-2-vadimp@mellanox.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus/ibm-cffps) Prevent writing on_off_config with bad dataEddie James1-1/+1
If the user write parameters resulted in no bytes being written to the temporary buffer, then ON_OFF_CONFIG will be written with uninitialized data. Prevent this by bailing out in this case. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/1578411640-16929-1-git-send-email-eajames@linux.ibm.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (w83627ehf) Remove set but not used variable 'fan4min'YueHaibing1-3/+1
Fixes gcc '-Wunused-but-set-variable' warning: drivers/hwmon/w83627ehf.c: In function 'w83627ehf_check_fan_inputs': drivers/hwmon/w83627ehf.c:1296:24: warning: variable 'fan4min' set but not used [-Wunused-but-set-variable] commit 62000264cfa8 ("hwmon: (w83627ehf) remove nct6775 and nct6776 support") left behind this unused variable. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20200108034514.50130-1-yuehaibing@huawei.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: Driver for disk and solid state drives with temperature sensorsGuenter Roeck3-0/+585
Reading the temperature of ATA drives has been supported for years by userspace tools such as smarttools or hddtemp. The downside of such tools is that they need to run with super-user privilege, that the temperatures are not reported by standard tools such as 'sensors' or 'libsensors', and that drive temperatures are not available for use in the kernel's thermal subsystem. This driver solves this problem by adding support for reading the temperature of ATA drives from the kernel using the hwmon API and by adding a temperature zone for each drive. With this driver, the hard disk temperature can be read using the unprivileged 'sensors' application: $ sensors drivetemp-scsi-1-0 drivetemp-scsi-1-0 Adapter: SCSI adapter temp1: +23.0°C or directly from sysfs: $ grep . /sys/class/hwmon/hwmon9/{name,temp1_input} /sys/class/hwmon/hwmon9/name:drivetemp /sys/class/hwmon/hwmon9/temp1_input:23000 If the drive supports SCT transport and reports temperature limits, those are reported as well. drivetemp-scsi-0-0 Adapter: SCSI adapter temp1: +27.0°C (low = +0.0°C, high = +60.0°C) (crit low = -41.0°C, crit = +85.0°C) (lowest = +23.0°C, highest = +34.0°C) The driver attempts to use SCT Command Transport to read the drive temperature. If the SCT Command Transport feature set is not available, or if it does not report the drive temperature, drive temperatures may be readable through SMART attributes. Since SMART attributes are not well defined, this method is only used as fallback mechanism. Cc: Chris Healy <cphealy@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus/ibm-cffps) Fix the LED behavior when turned offEddie James1-5/+4
The driver should remain in control of the LED on the PSU, even while off, not the PSU firmware as previously indicated. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/1576788607-13567-4-git-send-email-eajames@linux.ibm.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus/ibm-cffps) Add the VMON property for version 2Eddie James1-1/+5
Version 2 of the PSU supports reading an auxiliary voltage. Use the pmbus VMON property and associated virtual register to read it. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/1576788607-13567-3-git-send-email-eajames@linux.ibm.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus/ibm-cffps) Add new manufacturer debugfs entriesEddie James1-4/+70
Add support for a number of manufacturer-specific registers in the debugfs entries, as well as support to read and write the PMBUS_ON_OFF_CONFIG register through debugfs. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/1576788607-13567-2-git-send-email-eajames@linux.ibm.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus) Driver for MAX20730, MAX20734, and MAX20743Guenter Roeck3-0/+382
Add support for Maxim MAX20730, MAX20734, MAX20743 Integrated, Step-Down Switching Regulators with PMBus support. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (w83627ehf) Now only one intrusion channelDr. David Alan Gilbert1-13/+6
The 2nd intrusion channel was only used on the nct6776 Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Link: https://lore.kernel.org/r/20191225023225.2785-4-linux@treblig.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (w83627ehf) Remove code not needed after nct677* removalDr. David Alan Gilbert1-106/+32
Now the nct677* are gone, we can clean up some flags that are always the same now and simplify some code. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Link: https://lore.kernel.org/r/20191225023225.2785-3-linux@treblig.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (w83627ehf) remove nct6775 and nct6776 supportDr. David Alan Gilbert2-441/+41
The nct6775 and nct6776 are supported by the separate nct6775.c driver, so remove the code from the w83627ehf driver. Suggested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Link: https://lore.kernel.org/r/20191225023225.2785-2-linux@treblig.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus) Add MAX20796 to devices supported by generic pmbus driverGuenter Roeck2-2/+3
MAX20796 is a dual-phase scalable integrated voltage regulator with PMBus interface. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (w83627ehf) make sensor_dev_attr_##_name variables staticChen Zhou1-28/+28
Fix sparse warning: drivers/hwmon/w83627ehf.c:1202:1: warning: symbol 'sensor_dev_attr_pwm1_target' was not declared. Should it be static? and many more similar messages. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Chen Zhou <chenzhou10@huawei.com> Link: https://lore.kernel.org/r/20191213015605.172472-1-chenzhou10@huawei.com [groeck: Dropped all but one log message from description] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus) Detect if chip is write protectedGuenter Roeck2-0/+23
If a chip is write protected, we can not change any limits, and we can not clear status flags. This may be the reason why clearing status flags is reported to not work for some chips. Detect the condition in the pmbus core. If the chip is write protected, set limit attributes as read-only, and set the flag indicating that the status flag should be ignored. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: Driver for MAX31730Guenter Roeck3-1/+452
MAX31730 is a 3-Channel Remote Temperature Sensor. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: Add support for enable attributes to hwmon coreGuenter Roeck1-1/+7
The hwmon ABI supports enable attributes since commit fb41a710f84e ("hwmon: Document the sensor enable attribute"), but did not add support for those attributes to the hwmon core. Do that now. Since the enable attributes are logically the most important attributes, they are added as first attribute to the attribute list. Move hwmon_in_enable from last to first place for consistency. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (w83627ehf) convert to with_info interfaceDr. David Alan Gilbert1-799/+630
Convert the old hwmon_device_register code to devm_hwmon_device_register_with_info. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Link: https://lore.kernel.org/r/20191124202030.45360-3-linux@treblig.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (pmbus/ucd9000) Add support for UCD90320 Power SequencerJim Wright2-15/+30
Add support for the UCD90320 chip and its expanded set of GPIO pins. Signed-off-by: Jim Wright <wrightj@linux.vnet.ibm.com> Link: https://lore.kernel.org/r/20191205232411.21492-3-wrightj@linux.vnet.ibm.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: Add intrusion templatesDr. David Alan Gilbert1-1/+8
Add templates for intrusion%d_alarm and intrusion%d_beep. Note, these start at 0. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Link: https://lore.kernel.org/r/20191124202030.45360-2-linux@treblig.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-17hwmon: (core) Do not use device managed functions for memory allocationsGuenter Roeck1-27/+41
The hwmon core uses device managed functions, tied to the hwmon parent device, for various internal memory allocations. This is problematic since hwmon device lifetime does not necessarily match its parent's device lifetime. If there is a mismatch, memory leaks will accumulate until the parent device is released. Fix the problem by managing all memory allocations internally. The only exception is memory allocation for thermal device registration, which can be tied to the hwmon device, along with thermal device registration itself. Fixes: d560168b5d0f ("hwmon: (core) New hwmon registration API") Cc: stable@vger.kernel.org # v4.14.x: 47c332deb8e8: hwmon: Deal with errors from the thermal subsystem Cc: stable@vger.kernel.org # v4.14.x: 74e3512731bd: hwmon: (core) Fix double-free in __hwmon_device_register() Cc: stable@vger.kernel.org # v4.9.x: 3a412d5e4a1c: hwmon: (core) Simplify sysfs attribute name allocation Cc: stable@vger.kernel.org # v4.9.x: 47c332deb8e8: hwmon: Deal with errors from the thermal subsystem Cc: stable@vger.kernel.org # v4.9.x: 74e3512731bd: hwmon: (core) Fix double-free in __hwmon_device_register() Cc: stable@vger.kernel.org # v4.9+ Cc: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-17hwmon: (adt7475) Make volt2reg return same reg as reg2volt inputLuuk Paulussen1-2/+3
reg2volt returns the voltage that matches a given register value. Converting this back the other way with volt2reg didn't return the same register value because it used truncation instead of rounding. This meant that values read from sysfs could not be written back to sysfs to set back the same register value. With this change, volt2reg will return the same value for every voltage previously returned by reg2volt (for the set of possible input values) Signed-off-by: Luuk Paulussen <luuk.paulussen@alliedtelesis.co.nz> Link: https://lore.kernel.org/r/20191205231659.1301-1-luuk.paulussen@alliedtelesis.co.nz cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-17hwmon: (nct7802) Fix non-working alarm on voltagesGilles Buloz1-4/+67
No alarm is reported by /sys/.../inX_alarm In detail: The SMI Voltage status register is the only register giving a status for voltages, but it does not work like the non-SMI status registers used for temperatures and fans. A bit is set for each input crossing a threshold, in both direction, but the "inside" or "outside" limits info is not available. Also this register is cleared on read. Note : this is not explicitly spelled out in the datasheet, but from experiment. As a result if an input is crossing a threshold (min or max in any direction), the alarm is reported only once even if the input is still outside limits. Also if the alarm for another input is read before the one of this input, no alarm is reported at all. Signed-off-by: Gilles Buloz <gilles.buloz@kontron.com> Link: https://lore.kernel.org/r/5de0f566.tBga5POKAgHlmd0p%gilles.buloz@kontron.com Fixes: 3434f3783580 ("hwmon: Driver for Nuvoton NCT7802Y") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-17hwmon: (nct7802) Fix voltage limits to wrong registersGilles Buloz1-2/+2
in0 thresholds are written to the in2 thresholds registers in2 thresholds to in3 thresholds in3 thresholds to in4 thresholds in4 thresholds to in0 thresholds Signed-off-by: Gilles Buloz <gilles.buloz@kontron.com> Link: https://lore.kernel.org/r/5de0f509.rc0oEvPOMjbfPW1w%gilles.buloz@kontron.com Fixes: 3434f3783580 ("hwmon: Driver for Nuvoton NCT7802Y") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-12-01Merge tag 'compat-ioctl-5.5' of ↵Linus Torvalds2-0/+2
git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground Pull removal of most of fs/compat_ioctl.c from Arnd Bergmann: "As part of the cleanup of some remaining y2038 issues, I came to fs/compat_ioctl.c, which still has a couple of commands that need support for time64_t. In completely unrelated work, I spent time on cleaning up parts of this file in the past, moving things out into drivers instead. After Al Viro reviewed an earlier version of this series and did a lot more of that cleanup, I decided to try to completely eliminate the rest of it and move it all into drivers. This series incorporates some of Al's work and many patches of my own, but in the end stops short of actually removing the last part, which is the scsi ioctl handlers. I have patches for those as well, but they need more testing or possibly a rewrite" * tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (42 commits) scsi: sd: enable compat ioctls for sed-opal pktcdvd: add compat_ioctl handler compat_ioctl: move SG_GET_REQUEST_TABLE handling compat_ioctl: ppp: move simple commands into ppp_generic.c compat_ioctl: handle PPPIOCGIDLE for 64-bit time_t compat_ioctl: move PPPIOCSCOMPRESS to ppp_generic compat_ioctl: unify copy-in of ppp filters tty: handle compat PPP ioctls compat_ioctl: move SIOCOUTQ out of compat_ioctl.c compat_ioctl: handle SIOCOUTQNSD af_unix: add compat_ioctl support compat_ioctl: reimplement SG_IO handling compat_ioctl: move WDIOC handling into wdt drivers fs: compat_ioctl: move FITRIM emulation into file systems gfs2: add compat_ioctl support compat_ioctl: remove unused convert_in_user macro compat_ioctl: remove last RAID handling code compat_ioctl: remove /dev/raw ioctl translation compat_ioctl: remove PCI ioctl translation compat_ioctl: remove joystick ioctl translation ...
2019-11-27Merge tag 'hwmon-for-v5.5' of ↵Linus Torvalds18-78/+2575
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: - Add support for Texas Instruments TMP512/513 - Add support for LTC2947 - Add support for BEL PFE1100 and PFE3000 - Various minor improvements and fixes * tag 'hwmon-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: dell-smm-hwmon: Add documentation hwmon: (dell-smm) Add support for disabling automatic BIOS fan control hwmon: Add driver for Texas Instruments TMP512/513 sensor chips. dt-bindings: hwmon: Add TMP512/513 docs: hwmon: Document bel-pfe pmbus driver hwmon: (pmbus) add driver for BEL PFE1100 and PFE3000 dt-bindings: hwmon: Add ltc2947 documentation hwmon: Add support for ltc2947 hwmon: (ina3221) Add summation feature support hwmon: (tmp421) Allow reading at 2Hz instead of 0.5Hz hwmon: (w83793d) remove redundant assignment to variable res hwmon: (pmbus/ibm-cffps) Add version detection capability dt-bindings: hwmon: Document ibm,cffps compatible string hwmon: abituguru: make array probe_order static, makes object smaller hwmon: (applesmc) switch to using input device polling mode hwmon: (aspeed-pwm-tacho) Use devm_platform_ioremap_resource() in aspeed_pwm_tacho_probe() hwmon: (pmbus/ibm-cffps) Fix LED blink behavior hwmon: (pmbus/ibm-cffps) Switch LEDs to blocking brightness call
2019-11-27Merge tag 'for-v5.5' of ↵Linus Torvalds2-25/+43
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset updates from Sebastian Reichel: - test_power: add support for current and charge_counter - cpcap-charger: improve charge calculation and limit default charge voltage - ab8500: convert to IIO - misc small fixes all over drivers * tag 'for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (29 commits) power: supply: bd70528: Add MODULE_ALIAS to allow module auto loading power: supply: ab8500_charger: Fix inconsistent IS_ERR and PTR_ERR power: supply: cpcap-charger: cpcap_charger_voltage_to_regval() can be static power: supply: cpcap-battery: Add basic coulomb counter calibrate support power: supply: cpcap-battery: Read and save integrator register CCI power: supply: cpcap-battery: Simplify short term power average calculation power: supply: cpcap-battery: Simplify coulomb counter calculation with div_s64 power: supply: cpcap-battery: Move coulomb counter units per lsb to ddata power: supply: cpcap-charger: Allow changing constant charge voltage power: supply: cpcap-battery: Fix handling of lowered charger voltage power: supply: cpcap-charger: Improve battery detection power: supply: cpcap-battery: Check voltage before orderly_poweroff power: supply: cpcap-charger: Limit voltage to 4.2V for battery power: supply: ab8500: Handle invalid IRQ from platform_get_irq_byname() power: supply: ab8500_fg: Do not free non-requested IRQs in probe's error path power: supply: ab8500: Cleanup probe in reverse order power: reset: at91: fix __le32 cast in reset code power: supply: abx500_chargalg: Fix code indentation mfd: Switch the AB8500 GPADC to IIO iio: adc: New driver for the AB8500 GPADC ...
2019-11-22hwmon: (dell-smm) Add support for disabling automatic BIOS fan controlGiovanni Mascellani1-10/+105
This patch exports standard hwmon pwmX_enable sysfs attribute for enabling or disabling automatic fan control by BIOS. Standard value "1" is for disabling automatic BIOS fan control and value "2" for enabling. By default BIOS auto mode is enabled by laptop firmware. When BIOS auto mode is enabled, custom fan speed value (set via hwmon pwmX sysfs attribute) is overwritten by SMM in few seconds and therefore any custom settings are without effect. So this is reason why implementing option for disabling BIOS auto mode is needed. So finally this patch allows kernel to set and control fan speed on laptops, but it can be dangerous (like setting speed of other fans). The SMM commands to enable or disable automatic fan control are not documented and are not the same on all Dell laptops. Therefore a whitelist is used to send the correct codes only on laptopts for which they are known. This patch was originally developed by Pali Rohár; later Giovanni Mascellani implemented the whitelist. Signed-off-by: Giovanni Mascellani <gio@debian.org> Co-Developed-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Link: https://lore.kernel.org/r/20191122101519.1246458-1-gio@debian.org [groeck: Fixed checkpatch warnings] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-21hwmon: Add driver for Texas Instruments TMP512/513 sensor chips.Eric Tremblay3-0/+783
TI's TMP512/513 are I2C/SMBus system monitor chips. These chips monitor the supply voltage, supply current, power consumption and provide one local and up to three (TMP513) remote temperature sensors. It has been tested using a TI TMP513 development kit (TMP513EVM) Signed-off-by: Eric Tremblay <etremblay@distech-controls.com> Link: https://lore.kernel.org/r/20191112223001.20844-3-etremblay@distech-controls.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: (pmbus) add driver for BEL PFE1100 and PFE3000Tao Ren3-0/+141
Add "bel-pfe" pmbus driver to support hardware monitoring for BEL PFE1100 and PFE3000 power supplies. Signed-off-by: Tao Ren <rentao.bupt@gmail.com> Link: https://lore.kernel.org/r/20191029182054.32279-2-rentao.bupt@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: Add support for ltc2947Nuno Sá6-0/+1324
The ltc2947 is a high precision power and energy monitor with an internal sense resistor supporting up to +/- 30A. Three internal no Latency ADCs ensure accurate measurement of voltage and current, while high-bandwidth analog multiplication of voltage and current provides accurate power measurement in a wide range of applications. Internal or external clocking options enable precise charge and energy measurements. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20191021154115.319073-1-nuno.sa@analog.com [groeck: Removed unnecessary checks when reading temperature and energy; PAGE{0,1} -> LTC2947_PAGE_{0,1}] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: (ina3221) Add summation feature supportNicolin Chen1-22/+141
This patch implements the summation feature of INA3221, mainly the SCC (enabling) and SF (warning flag) bits of MASK_ENABLE register, INA3221_SHUNT_SUM (summation of shunt voltages) register, and the INA3221_CRIT_SUM (its critical alert setting) register. Although the summation feature allows user to select which channels to be added to the result, as an initial support, this patch simply selects all channels by default, with one only condition: all shunt resistor values need to be the same. This is because the summation of current channels can be only accurately calculated, using shunt voltage sum register, if all shunt resistors are equivalent. Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com> Link: https://lore.kernel.org/r/20191016235702.22039-1-nicoleotsuka@gmail.com [groeck: summation->sum in documentation and label] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: (tmp421) Allow reading at 2Hz instead of 0.5HzKyle Roeschley1-1/+2
Our driver configures the device to read at 2Hz, but then only allows the user to read cached temp values at up to 0.5Hz. Let's allow users to read as quickly as we do. Signed-off-by: Kyle Roeschley <kyle.roeschley@ni.com> Link: https://lore.kernel.org/r/20191014140310.7438-1-kyle.roeschley@ni.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: (w83793d) remove redundant assignment to variable resColin Ian King1-1/+1
The variable res is being initialized with a value that is never read and is being re-assigned a little later on. The assignment is redundant and hence can be removed. Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20191011170215.11539-1-colin.king@canonical.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: (pmbus/ibm-cffps) Add version detection capabilityEddie James1-4/+33
Some systems may plug in either version 1 or version 2 of the IBM common form factor power supply. Add a version-less compatibility string that tells the driver to try and detect which version of the power supply is connected. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/1570648262-25383-3-git-send-email-eajames@linux.ibm.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: abituguru: make array probe_order static, makes object smallerColin Ian King1-1/+1
Don't populate the array probe_order on the stack but instead make it static. Makes the object code smaller by 94 bytes. Before: text data bss dec hex filename 41473 13448 320 55241 d7c9 drivers/hwmon/abituguru.o After: text data bss dec hex filename 41315 13512 320 55147 d76b drivers/hwmon/abituguru.o (gcc version 9.2.1, amd64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20191006145231.24022-1-colin.king@canonical.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: (applesmc) switch to using input device polling modeDmitry Torokhov2-21/+18
Now that instances of input_dev support polling mode natively, we no longer need to create input_polled_dev instance. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20191002214345.GA108728@dtor-ws Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: (aspeed-pwm-tacho) Use devm_platform_ioremap_resource() in ↵Markus Elfring1-6/+1
aspeed_pwm_tacho_probe() Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Link: https://lore.kernel.org/r/cd5bab7b-9333-2a43-bcf0-a47bbbe719eb@web.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: (pmbus/ibm-cffps) Fix LED blink behaviorEddie James1-8/+19
The LED blink_set function incorrectly did not tell the PSU LED to blink if brightness was LED_OFF. Fix this, and also correct the LED_OFF command data, which should give control of the LED back to the PSU firmware. Also prevent I2C failures from getting the driver LED state out of sync and add some dev_dbg statements. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20191106200106.29519-3-eajames@linux.ibm.com Fixes: ef9e1cdf419a3 ("hwmon: (pmbus/cffps) Add led class device for power supply fault led") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: (pmbus/ibm-cffps) Switch LEDs to blocking brightness callEddie James1-4/+6
Since i2c_smbus functions can sleep, the brightness setting function for this driver must be the blocking version to avoid scheduling while atomic. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20191106200106.29519-2-eajames@linux.ibm.com Fixes: ef9e1cdf419a3 ("hwmon: (pmbus/cffps) Add led class device for power supply fault led") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-10-28hwmon: (ina3221) Fix read timeout issueNicolin Chen1-1/+1
After introducing "samples" to the calculation of wait time, the driver might timeout at the regmap_field_read_poll_timeout call, because the wait time could be longer than the 100000 usec limit due to a large "samples" number. So this patch sets the timeout limit to 2 times of the wait time in order to fix this issue. Fixes: 5c090abf945b ("hwmon: (ina3221) Add averaging mode support") Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com> Link: https://lore.kernel.org/r/20191022005922.30239-1-nicoleotsuka@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-10-23compat_ioctl: move WDIOC handling into wdt driversArnd Bergmann2-0/+2
All watchdog drivers implement the same set of ioctl commands, and fortunately all of them are compatible between 32-bit and 64-bit architectures. Modern drivers always go through drivers/watchdog/wdt.c as an abstraction layer, but older ones implement their own file_operations on a character device for this. Move the handling from fs/compat_ioctl.c into the individual drivers. Note that most of the legacy drivers will never be used on 64-bit hardware, because they are for an old 32-bit SoC implementation, but doing them all at once is safer than trying to guess which ones do or do not need the compat_ioctl handling. Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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