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id=a37881dead2503614b837c005efde05e614d3b69'>hwmon: (adm1275) Enable adm1278 ADM1278_TEMP1_ENManikandan Elumalai The adm1278 temp attribute need it for openbmc platform . This feature not enabled by default, so PMON_CONFIG needs to enable it. Signed-off-by: Manikandan Elumalai <manikandan.hcl.ers.epl@gmail.com> Link: https://lore.kernel.org/r/20200622153727.GA9347@cnn [groeck: Split long line] Signed-off-by: Guenter Roeck <linux@roeck-us.net> 2020-07-09hwmon: (adm1275) Make sure we are reading enough data for different chipsChu Lin Issue: When PEC is enabled, binding adm1272 to the adm1275 would fail due to PEC error. See below: adm1275: probe of xxxx failed with error -74 Diagnosis: Per the datasheet of adm1272, adm1278, adm1293 and amd1294, PMON_CONFIG (0xd4) is 16bits wide. On the other hand, PMON_CONFIG (0xd4) for adm1275 is 8bits wide. The driver should not assume everything is 8bits wide and read only 8bits from it. Solution: If it is adm1272, adm1278, adm1293 and adm1294, use i2c_read_word. Else, use i2c_read_byte Testing: Binding adm1272 to the driver. The change is only tested on adm1272. Signed-off-by: Chu Lin <linchuyuan@google.com> Link: https://lore.kernel.org/r/20200709040612.3977094-1-linchuyuan@google.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> 2020-03-08hwmon: (pmbus) Add 'phase' parameter where needed for multi-phase supportGuenter Roeck In preparation for multi-phase support, add 'phase' parameter to read_word and set_page functions. Actual multi-phase support will be added in a subsequent patch. Cc: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> 2019-06-23hwmon: (pmbus/adm1275) Fix power sampling supportGuenter Roeck Not every chip supported by this driver supports setting the number of samples for power averaging. Also, the power monitoring register is not always a 16-bit register, and the configuration bits used for voltage sampling are different depending on the register width. Some conditional code is needed to fix the problem. On top of all that, the compiler complains about problems with FIELD_GET and FIELD_PREP macros if the file is built with W=1. Avoid using those macros to silence the warning. Cc: Krzysztof Adamski <krzysztof.adamski@nokia.com> Cc: Alexander Sverdlin <alexander.sverdlin@nokia.com> Reviewed-by: Krzysztof Adamski <krzysztof.adamski@nokia.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> 2019-06-23hwmon: (pmbus/adm1275) support PMBUS_VIRT_*_SAMPLESAdamski, Krzysztof (Nokia - PL/Wroclaw) The device supports setting the number of samples for averaging the measurements. There are two separate settings - PWR_AVG for averaging PIN and VI_AVG for averaging VIN/VAUX/IOUT, both being part of PMON_CONFIG register. The values are stored as exponent of base 2 of the actual number of samples that will be taken. Signed-off-by: Krzysztof Adamski <krzysztof.adamski@nokia.com> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> [groeck: Dropped unused variables] Signed-off-by: Guenter Roeck <linux@roeck-us.net> 2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2018-12-02hwmon: (adm1275) Allow setting shunt reg valueKun Yi The ADM series of hotswap controllers support extending the current measurement range by using a sensing resistor value other than the typical 1 mOhm. For example, using a 0.5 mOhm sensing resistor doubles the maximal current can be measured. Current driver assumes a shunt resistor value of 1 mOhm in calculation, meaning for other resistor values, hwmon will report scaled current/power measurements. This patch parses device tree parameter "shunt-resistor-micro-ohms", if there is one. Signed-off-by: Kun Yi <kunyi@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> 2018-03-22hwmon: (pmbus/adm1275) Add support for ADM1272Guenter Roeck The chip is quite similar to other chips in the series, but as usual it comes with its own quirks. Signed-off-by: Guenter Roeck <linux@roeck-us.net> 2018-03-10hwmon: (pmbus/adm1275) Accept negative page register valuesGuenter Roeck A negative page register value means that no page needs to be selected. This is used by status register read operations and needs to be accepted. The failure to do so so results in missed status and limit registers. Fixes: da8e48ab483e1 ("hwmon: (pmbus) Always call _pmbus_read_byte in core driver") Signed-off-by: Guenter Roeck <linux@roeck-us.net> 2017-03-27driver: (adm1275) set the m,b and R coefficients correctly for powerShikhar Dogra Seems like coefficient values for m, b and R under power have been put in the wrong order. Rearranging them properly to get correct values of coefficients for power. For specs, please refer to table 7 (page 35) on http://www.analog.com/media/en/technical-documentation/data-sheets/ADM1075.pdf Fixes: 904b296f308d ("hwmon: (adm1275) Introduce configuration data structure for coeffcients") Signed-off-by: Shikhar Dogra <shidogra@cisco.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>