Commit graph

955 commits

Author SHA1 Message Date
Randy Dunlap
3cdeccb5f0 Documentation: hwmon/f71882fg: drop duplicate words
Drop the doubled word "to".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-hwmon@vger.kernel.org
Link: https://lore.kernel.org/r/20200703205649.30125-2-rdunlap@infradead.org
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-24 07:44:57 -07:00
Ugur Usug
5c9353f5f8 hwmon: (pmbus/max20730) Add max20710 support
Add support for max20710 into the existing max20730 driver.

Signed-off-by: Ugur Usug <ugur.usug@maximintegrated.com>
Link: https://lore.kernel.org/r/BYAPR11MB317423C13909AE6F1913BBD7FD9C0@BYAPR11MB3174.namprd11.prod.outlook.com
[groeck: Fixed various whitespace errors]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-24 07:44:18 -07:00
Linus Torvalds
cb8e59cc87 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:

 1) Allow setting bluetooth L2CAP modes via socket option, from Luiz
    Augusto von Dentz.

 2) Add GSO partial support to igc, from Sasha Neftin.

 3) Several cleanups and improvements to r8169 from Heiner Kallweit.

 4) Add IF_OPER_TESTING link state and use it when ethtool triggers a
    device self-test. From Andrew Lunn.

 5) Start moving away from custom driver versions, use the globally
    defined kernel version instead, from Leon Romanovsky.

 6) Support GRO vis gro_cells in DSA layer, from Alexander Lobakin.

 7) Allow hard IRQ deferral during NAPI, from Eric Dumazet.

 8) Add sriov and vf support to hinic, from Luo bin.

 9) Support Media Redundancy Protocol (MRP) in the bridging code, from
    Horatiu Vultur.

10) Support netmap in the nft_nat code, from Pablo Neira Ayuso.

11) Allow UDPv6 encapsulation of ESP in the ipsec code, from Sabrina
    Dubroca. Also add ipv6 support for espintcp.

12) Lots of ReST conversions of the networking documentation, from Mauro
    Carvalho Chehab.

13) Support configuration of ethtool rxnfc flows in bcmgenet driver,
    from Doug Berger.

14) Allow to dump cgroup id and filter by it in inet_diag code, from
    Dmitry Yakunin.

15) Add infrastructure to export netlink attribute policies to
    userspace, from Johannes Berg.

16) Several optimizations to sch_fq scheduler, from Eric Dumazet.

17) Fallback to the default qdisc if qdisc init fails because otherwise
    a packet scheduler init failure will make a device inoperative. From
    Jesper Dangaard Brouer.

18) Several RISCV bpf jit optimizations, from Luke Nelson.

19) Correct the return type of the ->ndo_start_xmit() method in several
    drivers, it's netdev_tx_t but many drivers were using
    'int'. From Yunjian Wang.

20) Add an ethtool interface for PHY master/slave config, from Oleksij
    Rempel.

21) Add BPF iterators, from Yonghang Song.

22) Add cable test infrastructure, including ethool interfaces, from
    Andrew Lunn. Marvell PHY driver is the first to support this
    facility.

23) Remove zero-length arrays all over, from Gustavo A. R. Silva.

24) Calculate and maintain an explicit frame size in XDP, from Jesper
    Dangaard Brouer.

25) Add CAP_BPF, from Alexei Starovoitov.

26) Support terse dumps in the packet scheduler, from Vlad Buslov.

27) Support XDP_TX bulking in dpaa2 driver, from Ioana Ciornei.

28) Add devm_register_netdev(), from Bartosz Golaszewski.

29) Minimize qdisc resets, from Cong Wang.

30) Get rid of kernel_getsockopt and kernel_setsockopt in order to
    eliminate set_fs/get_fs calls. From Christoph Hellwig.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2517 commits)
  selftests: net: ip_defrag: ignore EPERM
  net_failover: fixed rollback in net_failover_open()
  Revert "tipc: Fix potential tipc_aead refcnt leak in tipc_crypto_rcv"
  Revert "tipc: Fix potential tipc_node refcnt leak in tipc_rcv"
  vmxnet3: allow rx flow hash ops only when rss is enabled
  hinic: add set_channels ethtool_ops support
  selftests/bpf: Add a default $(CXX) value
  tools/bpf: Don't use $(COMPILE.c)
  bpf, selftests: Use bpf_probe_read_kernel
  s390/bpf: Use bcr 0,%0 as tail call nop filler
  s390/bpf: Maintain 8-byte stack alignment
  selftests/bpf: Fix verifier test
  selftests/bpf: Fix sample_cnt shared between two threads
  bpf, selftests: Adapt cls_redirect to call csum_level helper
  bpf: Add csum_level helper for fixing up csum levels
  bpf: Fix up bpf_skb_adjust_room helper's skb csum setting
  sfc: add missing annotation for efx_ef10_try_update_nic_stats_vf()
  crypto/chtls: IPv6 support for inline TLS
  Crypto/chcr: Fixes a coccinile check error
  Crypto/chcr: Fixes compilations warnings
  ...
2020-06-03 16:27:18 -07:00
Serge Semin
87976ce282 hwmon: Add Baikal-T1 PVT sensor driver
Baikal-T1 SoC provides an embedded process, voltage and temperature
sensor to monitor an internal SoC environment (chip temperature, supply
voltage and process monitor) and on time detect critical situations,
which may cause the system instability and even damages. The IP-block
is based on the Analog Bits PVT sensor, but is equipped with a
dedicated control wrapper, which provides a MMIO registers-based access
to the sensor core functionality (APB3-bus based) and exposes an
additional functions like thresholds/data ready interrupts, its status
and masks, measurements timeout. All of these is used to create a hwmon
driver being added to the kernel by this commit.

The driver implements support for the hardware monitoring capabilities
of Baikal-T1 process, voltage and temperature sensors. PVT IP-core
consists of one temperature and four voltage sensors, each of which is
implemented as a dedicated hwmon channel config.

The driver can optionally provide the hwmon alarms for each sensor the
PVT controller supports. The alarms functionality is made compile-time
configurable due to the hardware interface implementation peculiarity,
which is connected with an ability to convert data from only one sensor
at a time. Additional limitation is that the controller performs the
thresholds checking synchronously with the data conversion procedure.
Due to these limitations in order to have the hwmon alarms
automatically detected the driver code must switch from one sensor to
another, read converted data and manually check the threshold status
bits. Depending on the measurements timeout settings this design may
cause additional burden on the system performance. By default if the
alarms kernel config is disabled the data conversion is performed by
the driver on demand when read operation is requested via corresponding
_input-file.

Co-developed-by: Maxim Kaurkin <maxim.kaurkin@baikalelectronics.ru>
Signed-off-by: Maxim Kaurkin <maxim.kaurkin@baikalelectronics.ru>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-28 07:59:45 -07:00
Guenter Roeck
8054eadca7 Immutable branch between MFD and HWMON due for the v5.8 merge window
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Merge tag 'ib-mfd-hwmon-v5.8' into hwmon-next

Immutable branch between MFD and HWMON due for the v5.8 merge window
2020-05-22 06:29:55 -07:00
Naveen Krishna Chatradhi
b968279625 hwmon: (amd_energy) Add documentation
Document amd_energy driver with energy sensors supported by it.

Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Link: https://lore.kernel.org/r/20200519155011.56184-2-nchatrad@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:39 -07:00
Josh Lehan
229d495d81 hwmon: (lm90) Add max6654 support to lm90 driver
Add support for the Maxim MAX6654 to the lm90 driver.

The MAX6654 is a temperature sensor, similar to the others,
but with some differences regarding the configuration
register, and the sampling rate at which extended resolution
becomes possible.

Signed-off-by: Josh Lehan <krellan@google.com>
Link: https://lore.kernel.org/r/20200513184248.145765-1-krellan@google.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Guenter Roeck
2138f8853a hwmon: (pmbus) Driver for Maxim MAX16601
MAX16601 is a VR13.HC Dual-Output Voltage Regulator Chipset,
implementing a (8+1) multiphase synchronous buck converter.

Cc: Alex Qiu <xqiu@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Alex Qiu
5a56a39be7 hwmon: (ina2xx) Implement alert functions
Implement alert functions for INA226, INA230 and INA231. Expose 06h
Mask/Enable and 07h Alert Limit registers via alert setting and alarm
files.

Signed-off-by: Alex Qiu <xqiu@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Tim Harvey
3bce5377ef hwmon: Add Gateworks System Controller support
The Gateworks System Controller has a hwmon sub-component that exposes
up to 16 ADC's, some of which are temperature sensors, others which are
voltage inputs. The ADC configuration (register mapping and name) is
configured via device-tree and varies board to board.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-05-20 10:29:17 +01:00
David S. Miller
d483389678 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Simple overlapping changes to linux/vermagic.h

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-25 20:18:53 -07:00
Michael Walle
4406d36dfd net: phy: bcm54140: add hwmon support
The PHY supports monitoring its die temperature as well as two analog
voltages. Add support for it.

Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:14:18 -07:00
Guenter Roeck
37d59d10a8 hwmon: (pmbus/isl68137) Fix up chip IDs
I2C chip IDs need to reflect chip names, not chip functionality.

Fixes: f621d61fd5 ("hwmon: (pmbus) add support for 2nd Gen Renesas digital multiphase")
Cc: Grant Peltier <grantpeltier93@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-04-12 15:12:51 -07:00
Grant Peltier
5b10a81946 docs: hwmon: Update documentation for isl68137 pmbus driver
Update documentation to include reference information for newly
supported 2nd generation Renesas digital multiphase voltage regulators.
Also update branding from Intersil to Renesas.

Signed-off-by: Grant Peltier <grantpeltier93@gmail.com>
Link: https://lore.kernel.org/r/1588e5e89d6a9623464036cf8fbdb9b18785894b.1584720563.git.grantpeltier93@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-03-22 16:42:54 -07:00
Guenter Roeck
6f4a0daea4 hwmon: (pmbus/tps53679) Add documentation
Document tps53679 driver with all chips supported by it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-03-08 20:35:47 -07:00
Guenter Roeck
16358542f3 hwmon: (pmbus) Implement multi-phase support
Some PMBus chips support multiple phases, and report telemetry such
as input current, output current, or temperature for each phase.
Add support for such chips to the PMBus core.

Start with a maximum of 8 phases per page, and assume that supported
sensors per phase are similar for all pages. Only support per-phase
telemetry attributes, no limits or alarms.

As part of this patch, set the initial page variable to 0xff to ensure
that the page is updated when the first page command is issued. Also
only issue page commands if the chip supports more than one page.

Cc: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-03-08 20:35:47 -07:00
Guenter Roeck
43f33b6e59 hwmon: (pmbus) Add 'phase' parameter where needed for multi-phase support
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>
2020-03-08 20:35:47 -07:00
Guenter Roeck
4d52b28ddf hwmon: (k10temp) Update driver documentation
Document temperature, voltage, and current sensors available with
Family 17h and later CPUs.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-03-08 20:35:46 -07:00
Mike Jones
ee44fafb38 hwmon: (pmbus/ltc2978) add support for more parts.
LTC2972, LTC2979, LTC3884, LTC3889, LTC7880, LTM4664, LTM4677,
LTM4678, LTM4680, LTM4700.

Signed-off-by: Mike Jones <michael-a1.jones@analog.com>
Link: https://lore.kernel.org/r/1581032654-4330-1-git-send-email-michael-a1.jones@analog.com
[groeck: Fixed checkpatch issues (long lines, whitespace)]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-03-08 20:35:46 -07:00
Mike Jones
50b6ced709 docs: hwmon: (pmbus/ltc2978) Update datasheet URLs to analog.com.
Signed-off-by: Mike Jones <michael-a1.jones@analog.com>
Link: https://lore.kernel.org/r/1580234400-2829-1-git-send-email-michael-a1.jones@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-03-08 20:35:46 -07:00
Mauro Carvalho Chehab
c77ec02534 docs: adm1177: fix a broken reference
This reference was missing the .rst extension. This would be OK
if it were using the :doc: directive. So, switch to it.

As a side effect, this will create cross-reference links at
html output.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/8d37f465888656224855a21f5bb01edb1ca66cf3.1582361738.git.mchehab+huawei@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-02-23 20:00:29 -08:00
Randy Dunlap
0a923a76d6 Documentation/hwmon: fix xdpe12284 Sphinx warnings
Fix Sphinx format warnings by adding a blank line.

Documentation/hwmon/xdpe12284.rst:28: WARNING: Unexpected indentation.
Documentation/hwmon/xdpe12284.rst:29: WARNING: Block quote ends without a blank line; unexpected unindent.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-hwmon@vger.kernel.org
Cc: Vadim Pasternak <vadimp@mellanox.com>
Link: https://lore.kernel.org/r/0094c570-dd4c-dc0e-386d-ea1c39b6a582@infradead.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-02-17 14:20:55 -08:00
Beniamin Bia
09b08ac9e8 hwmon: (adm1177) Add ADM1177 Hot Swap Controller and Digital Power Monitor 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>
2020-01-23 13:15:11 -08:00
Vadim Pasternak
971dfd8cdc docs: hwmon: Include 'xdpe12284.rst' into docs
Add documentation for 'xdpe122' devices.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Link: https://lore.kernel.org/r/20200113150841.17670-7-vadimp@mellanox.com
[groeck: Added to index.rst]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23 13:15:11 -08:00
Guenter Roeck
5b46903d8b hwmon: Driver for disk and solid state drives with temperature sensors
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>
2020-01-23 13:15:10 -08:00
Guenter Roeck
cce209581a hwmon: (pmbus) Driver for MAX20730, MAX20734, and MAX20743
Add support for Maxim MAX20730, MAX20734, MAX20743 Integrated,
Step-Down Switching Regulators with PMBus support.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23 13:15:10 -08:00
Guenter Roeck
1a1ea120af hwmon: (pmbus) Add MAX20796 to devices supported by generic pmbus driver
MAX20796 is a dual-phase scalable integrated voltage regulator with
PMBus interface.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23 13:15:09 -08:00
Guenter Roeck
d21ed22ba7 hwmon: Driver for MAX31730
MAX31730 is a 3-Channel Remote Temperature Sensor.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23 13:15:09 -08:00
Jim Wright
a470f11c5b hwmon: (pmbus/ucd9000) Add support for UCD90320 Power Sequencer
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>
2020-01-23 13:15:09 -08:00
Linus Torvalds
937d6eefc7 Here's the main documentation changes for 5.5:
- Various kerneldoc script enhancements.
 
  - More RST conversions; those are slowing down as we run out of things to
    convert, but we're a ways from done still.
 
  - Dan's "maintainer profile entry" work landed at last.  Now we just need
    to get maintainers to fill in the profiles...
 
  - A reworking of the parallel build setup to work better with a variety of
    systems (and to not take over huge systems entirely in particular).
 
  - The MAINTAINERS file is now converted to RST during the build.
    Hopefully nobody ever tries to print this thing, or they will need to
    load a lot of paper.
 
  - A script and documentation making it easy for maintainers to add Link:
    tags at commit time.
 
 Also included is the removal of a bunch of spurious CR characters.
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Merge tag 'docs-5.5a' of git://git.lwn.net/linux

Pull Documentation updates from Jonathan Corbet:
 "Here are the main documentation changes for 5.5:

   - Various kerneldoc script enhancements.

   - More RST conversions; those are slowing down as we run out of
     things to convert, but we're a ways from done still.

   - Dan's "maintainer profile entry" work landed at last. Now we just
     need to get maintainers to fill in the profiles...

   - A reworking of the parallel build setup to work better with a
     variety of systems (and to not take over huge systems entirely in
     particular).

   - The MAINTAINERS file is now converted to RST during the build.
     Hopefully nobody ever tries to print this thing, or they will need
     to load a lot of paper.

   - A script and documentation making it easy for maintainers to add
     Link: tags at commit time.

  Also included is the removal of a bunch of spurious CR characters"

* tag 'docs-5.5a' of git://git.lwn.net/linux: (91 commits)
  docs: remove a bunch of stray CRs
  docs: fix up the maintainer profile document
  libnvdimm, MAINTAINERS: Maintainer Entry Profile
  Maintainer Handbook: Maintainer Entry Profile
  MAINTAINERS: Reclaim the P: tag for Maintainer Entry Profile
  docs, parallelism: Rearrange how jobserver reservations are made
  docs, parallelism: Do not leak blocking mode to other readers
  docs, parallelism: Fix failure path and add comment
  Documentation: Remove bootmem_debug from kernel-parameters.txt
  Documentation: security: core.rst: fix warnings
  Documentation/process/howto/kokr: Update for 4.x -> 5.x versioning
  Documentation/translation: Use Korean for Korean translation title
  docs/memory-barriers.txt: Remove remaining references to mmiowb()
  docs/memory-barriers.txt/kokr: Update I/O section to be clearer about CPU vs thread
  docs/memory-barriers.txt/kokr: Fix style, spacing and grammar in I/O section
  Documentation/kokr: Kill all references to mmiowb()
  docs/memory-barriers.txt/kokr: Rewrite "KERNEL I/O BARRIER EFFECTS" section
  docs: Add initial documentation for devfreq
  Documentation: Document how to get links with git am
  docs: Add request_irq() documentation
  ...
2019-12-02 11:51:02 -08:00
Giovanni Mascellani
4a1288f1c1 dell-smm-hwmon: Add documentation
Part of the documentation is taken from the README of the userspace
utils (https://github.com/vitorafsr/i8kutils). The license is GPL-2+
and the author Massimo Dal Zotto is already credited as author of
the module. Therefore there should be no copyright problem.

I also added a paragraph with specific information on the experimental
support for automatic BIOS fan control.

Signed-off-by: Giovanni Mascellani <gio@debian.org>
Link: https://lore.kernel.org/r/20191122101519.1246458-2-gio@debian.org
[groeck: Fixed some of the documentation warnings]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-22 20:47:43 -08:00
Eric Tremblay
59dfa75e5d hwmon: Add driver for Texas Instruments TMP512/513 sensor chips.
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>
2019-11-21 21:26:40 -08:00
Tao Ren
61412ef12a docs: hwmon: Document bel-pfe pmbus driver
Add documentation for bel-pfe pmbus driver which supports BEL PFE1100 and
PFE3000 power supplies.

Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
Link: https://lore.kernel.org/r/20191029182054.32279-3-rentao.bupt@gmail.com
[groeck: Added bel-pfe to index.rst]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06 14:37:19 -08:00
Nuno Sá
9f90fd652b hwmon: Add support for ltc2947
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>
2019-11-06 14:37:19 -08:00
Nicolin Chen
2057bdfb71 hwmon: (ina3221) Add summation feature support
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>
2019-11-06 14:37:19 -08:00
Jonathan Corbet
822bbba0ca Linux 5.4-rc4
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Merge tag 'v5.4-rc4' into docs-next

I need to pick up the independent changes made to
Documentation/core-api/memory-allocation.rst to be able to merge further
work without creating a total mess.
2019-10-29 04:43:29 -06:00
Mauro Carvalho Chehab
0ac624f47d docs: fix some broken references
There are a number of documentation files that got moved or
renamed. update their references.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Shannon Nelson <snelson@pensando.io>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Paul Walmsley <paul.walmsley@sifive.com> # RISC-V
Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-10-10 11:25:39 -06:00
Adam Zerella
11c943a1a6 hwmon: docs: Extend inspur-ipsps1 title underline
Sphinx is generating a build warning as the title underline
of this file is too short.

Signed-off-by: Adam Zerella <adam.zerella@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-10-07 05:56:57 -07:00
Adam Zerella
b428db1e88 docs: hwmon: Include 'inspur-ipsps1.rst' into docs
When generating documentation output Sphinx
outputs a warning for not including
the page 'inspur-ipsps1.rst' in 'index.rst'.

Assuming this documentation is useful it
should be included in the index.

Signed-off-by: Adam Zerella <adam.zerella@gmail.com>
Link: https://lore.kernel.org/r/20190925131715.GB19073@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-10-02 06:40:29 -07:00
Lukas Zapletal
43fd0cf4c6 hwmon: (k10temp) Update documentation and add temp2_input info
It's been a while since the k10temp documentation has been updated.
There are new CPU families supported as well as Tdie temp was added.
This patch adds all missing families which I was able to find from git
history and provides more info about Tctl vs Tdie exported temps.

Signed-off-by: Lukas Zapletal <lzap+git@redhat.com>
Link: https://lore.kernel.org/r/20190923105931.27881-1-lzap+git@redhat.com
[groeck: Formatting]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-10-02 06:35:57 -07:00
Linus Torvalds
7c672abc12 It's a somewhat calmer cycle for docs this time, as the churn of the mass
RST conversion is happily mostly behind us.
 
  - A new document on reproducible builds.
 
  - We finally got around to zapping the documentation for hardware support
    that was removed in 2004; one doesn't want to rush these things.
 
  - The usual assortment of fixes, typo corrections, etc.
 
 You'll still find a handful of annoying conflicts against other trees,
 mostly tied to the last RST conversions; resolutions are straightforward
 and the linux-next ones are good.
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Merge tag 'docs-5.4' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "It's a somewhat calmer cycle for docs this time, as the churn of the
  mass RST conversion is happily mostly behind us.

   - A new document on reproducible builds.

   - We finally got around to zapping the documentation for hardware
     support that was removed in 2004; one doesn't want to rush these
     things.

   - The usual assortment of fixes, typo corrections, etc"

* tag 'docs-5.4' of git://git.lwn.net/linux: (67 commits)
  Documentation: kbuild: Add document about reproducible builds
  docs: printk-formats: Stop encouraging use of unnecessary %h[xudi] and %hh[xudi]
  Documentation: Add "earlycon=sbi" to the admin guide
  doc🔒 remove reference to clever use of read-write lock
  devices.txt: improve entry for comedi (char major 98)
  docs: mtd: Update spi nor reference driver
  doc: arm64: fix grammar dtb placed in no attributes region
  Documentation: sysrq: don't recommend 'S' 'U' before 'B'
  mailmap: Update email address for Quentin Perret
  docs: ftrace: clarify when tracing is disabled by the trace file
  docs: process: fix broken link
  Documentation/arm/samsung-s3c24xx: Remove stray U+FEFF character to fix title
  Documentation/arm/sa1100/assabet: Fix 'make assabet_defconfig' command
  Documentation/arm/sa1100: Remove some obsolete documentation
  docs/zh_CN: update Chinese howto.rst for latexdocs making
  Documentation: virt: Fix broken reference to virt tree's index
  docs: Fix typo on pull requests guide
  kernel-doc: Allow anonymous enum
  Documentation: sphinx: Don't parse socket() as identifier reference
  Documentation: sphinx: Add missing comma to list of strings
  ...
2019-09-17 16:22:26 -07:00
Guenter Roeck
4e19e72f45 hwmon: submitting-patches: Add note on comment style
Ask for standard multi-line comments, and ask for consistent
comment style.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-13 05:43:06 -07:00
Guenter Roeck
9b0cffa6c4 hwmon: submitting-patches: Point to with_info API
New driver should use devm_hwmon_device_register_with_info() or
hwmon_device_register_with_info() to register with the hwmon subsystem.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-13 05:06:45 -07:00
Dan Robertson
ffd96868ac hwmon: (shtc1) add support for the SHTC3 sensor
Add support for the Sensirion SHTC3 humidity and temperature sensor to
the shtc1 module.

Signed-off-by: Dan Robertson <dan@dlrobertson.com>
Link: https://lore.kernel.org/r/20190905014554.21658-2-dan@dlrobertson.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-10 11:42:56 -07:00
John Wang
edd2a4d660 hwmon: pmbus: Add Inspur Power System power supply driver
Add the driver to monitor Inspur Power System power supplies
with hwmon over pmbus.

This driver adds sysfs attributes for additional power supply data,
including vendor, model, part_number, serial number,
firmware revision, hardware revision, and psu mode(active/standby).

Signed-off-by: John Wang <wangzqbj@inspur.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20190819091509.29276-1-wangzqbj@inspur.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-03 12:47:17 -07:00
Mauro Carvalho Chehab
899df7b41c docs: hwmon: pxe1610: convert to ReST format and add to the index
This document was recently introduced. Convert it to ReST
just like the other hwmon documents, adding it to the hwmon index.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Link: https://lore.kernel.org/r/657bf022625e0888d3becf10c78d162eeb864608.1563792334.git.mchehab+samsung@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-03 12:47:17 -07:00
Daniel Mack
557c7ffa2f hwmon: (lm75) add support for PCT2075
The NXP PCT2075 is largely compatible with other chips already supported
by the LM75 driver. It uses an 11-bit resolution and defaults to 100 ms
sampling period. The datasheet is here:

  https://www.nxp.com/docs/en/data-sheet/PCT2075.pdf

Signed-off-by: Daniel Mack <daniel@zonque.org>
Link: https://lore.kernel.org/r/20190711124504.7580-2-daniel@zonque.org
[groeck: Documentation update]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-03 12:47:17 -07:00
Guenter Roeck
2c9d5b5e32 hwmon: Remove ads1015 driver
A driver for ADS1015 with more functionality is available in the iio
subsystem.

Remove the hwmon driver as duplicate. If the chip is used for hardware
monitoring, the iio->hwmon bridge should be used.

Cc: Dirk Eibach <eibach@gdsys.de>
Link: https://lore.kernel.org/r/1562004758-13025-1-git-send-email-linux@roeck-us.net
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-03 12:47:17 -07:00
Mauro Carvalho Chehab
bfc8a222d3 docs: hwmon: pxe1610: convert to ReST format and add to the index
This document was recently introduced. Convert it to ReST
just like the other hwmon documents, adding it to the hwmon index.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:31:46 -06:00
Mauro Carvalho Chehab
ccf988b66d docs: i2c: convert to ReST and add to driver-api bookset
Convert each file at I2C subsystem, renaming them to .rst and
adding to the driver-api book.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:25:27 -06:00
Robert Karszniewicz
223b2b5030 hwmon: (k8temp) documentation: update URL of datasheet
The old URL is dead.

Signed-off-by: Robert Karszniewicz <avoidr@firemail.cc>
Link: https://lore.kernel.org/r/7139bc7707c24bd4dd7eb323e2da90105a3de9c1.1563522498.git.avoidr@firemail.cc
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-21 19:18:45 -07:00
Mauro Carvalho Chehab
fe34c89d25 docs: driver-model: move it to the driver-api book
The audience for the Kernel driver-model is clearly Kernel hackers.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> # ice driver changes
2019-07-15 11:03:02 -03:00
Linus Torvalds
f632a8170a Driver Core and debugfs changes for 5.3-rc1
Here is the "big" driver core and debugfs changes for 5.3-rc1
 
 It's a lot of different patches, all across the tree due to some api
 changes and lots of debugfs cleanups.  Because of this, there is going
 to be some merge issues with your tree at the moment, I'll follow up
 with the expected resolutions to make it easier for you.
 
 Other than the debugfs cleanups, in this set of changes we have:
 	- bus iteration function cleanups (will cause build warnings
 	  with s390 and coresight drivers in your tree)
 	- scripts/get_abi.pl tool to display and parse Documentation/ABI
 	  entries in a simple way
 	- cleanups to Documenatation/ABI/ entries to make them parse
 	  easier due to typos and other minor things
 	- default_attrs use for some ktype users
 	- driver model documentation file conversions to .rst
 	- compressed firmware file loading
 	- deferred probe fixes
 
 All of these have been in linux-next for a while, with a bunch of merge
 issues that Stephen has been patient with me for.  Other than the merge
 issues, functionality is working properly in linux-next :)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core and debugfs updates from Greg KH:
 "Here is the "big" driver core and debugfs changes for 5.3-rc1

  It's a lot of different patches, all across the tree due to some api
  changes and lots of debugfs cleanups.

  Other than the debugfs cleanups, in this set of changes we have:

   - bus iteration function cleanups

   - scripts/get_abi.pl tool to display and parse Documentation/ABI
     entries in a simple way

   - cleanups to Documenatation/ABI/ entries to make them parse easier
     due to typos and other minor things

   - default_attrs use for some ktype users

   - driver model documentation file conversions to .rst

   - compressed firmware file loading

   - deferred probe fixes

  All of these have been in linux-next for a while, with a bunch of
  merge issues that Stephen has been patient with me for"

* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
  debugfs: make error message a bit more verbose
  orangefs: fix build warning from debugfs cleanup patch
  ubifs: fix build warning after debugfs cleanup patch
  driver: core: Allow subsystems to continue deferring probe
  drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
  arch_topology: Remove error messages on out-of-memory conditions
  lib: notifier-error-inject: no need to check return value of debugfs_create functions
  swiotlb: no need to check return value of debugfs_create functions
  ceph: no need to check return value of debugfs_create functions
  sunrpc: no need to check return value of debugfs_create functions
  ubifs: no need to check return value of debugfs_create functions
  orangefs: no need to check return value of debugfs_create functions
  nfsd: no need to check return value of debugfs_create functions
  lib: 842: no need to check return value of debugfs_create functions
  debugfs: provide pr_fmt() macro
  debugfs: log errors when something goes wrong
  drivers: s390/cio: Fix compilation warning about const qualifiers
  drivers: Add generic helper to match by of_node
  driver_find_device: Unify the match function with class_find_device()
  bus_find_device: Unify the match callback with class_find_device
  ...
2019-07-12 12:24:03 -07:00
Vijay Khemka
37ab356417 hwmon: (pmbus) Document Infineon PXE1610 driver
Added documentation for Infineon PXE1610 driver

Signed-off-by: Vijay Khemka <vijaykhemka@fb.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23 18:33:01 -07:00
Mauro Carvalho Chehab
4489f161b7 docs: driver-model: convert docs to ReST and rename to *.rst
Convert the various documents at the driver-model, preparing
them to be part of the driver-api book.

The conversion is actually:
  - add blank lines and identation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> # ice
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-21 15:47:26 +02:00
Iker Perez del Palomar Sustatxa
39abe9d88b hwmon: (lm75) Add support for TMP75B
The TMP75B has a different control register, supports 12-bit
resolution and the default conversion rate is 37 Hz.

Signed-off-by: Iker Perez del Palomar Sustatxa <iker.perez@codethink.co.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-05-03 13:16:18 -07:00
Mauro Carvalho Chehab
f786dbbe6f docs: hwmon: remove the extension from .rst files
On almost all places, we're including ReST files without the
extension.

Let's remove the extension here	as well, in order to use just
one standard.

Suggested-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-22 15:30:35 -07:00
Mauro Carvalho Chehab
e57695e772 docs: hwmon: convert three docs to ReST format
Those three new drivers were missed on the initial conversion
to ReST format. So:

- Rename them to .rst;
- Add them to the hwmon index.rst index;
- add some blank lines at the "Supported systems:" part, in
  order to allow Sphinx to properly identify new lines,
  suppressing warnings and avoid it to output some random
  lines in bold;
- When multiple authors are involved, change the authors
  part to a list, in order to avoid adding blank lines.
- adjust the table cells (one of the tables seemed to be
  assuming that tab is 4 positions instead of 8) and add
  the table markup.
- be sure that the section markups have the same number of
  characters as the section title.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-22 15:27:27 -07:00
Nicolin Chen
023912dbb8 hwmon: (ina3221) Add voltage conversion time settings
The CONFIG register has two 3-bit fields for conversion time
settings of Bus-voltage and Shunt-voltage, respectively. The
conversion settings, along with averaging mode, allow users
to optimize available timing requirement.

This patch adds an 'update_interval' sysfs node through the
hwmon_chip_info of hwmon core. It reflects a total hardware
conversion time:
    samples * channels * (Bus + Shunt conversion times)

Though INA3221 supports different conversion time setups for
Bus and Shunt voltages, this patch only adds the support of
a unified setting for both conversion times, by dividing the
conversion time into two equal values.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
[groeck: .rst related formatting changes in documentation]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-18 06:44:11 -07:00
Mauro Carvalho Chehab
7ebd8b66dd docs: hwmon: Add an index file and rename docs to *.rst
Now that all files were converted to ReST format, rename them
and add an index.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 10:37:23 -07:00
Mauro Carvalho Chehab
b04f2f7d38 docs: hwmon: convert remaining files to ReST format
Convert all other hwmon files to ReST format, in order to allow
them to be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 10:36:05 -07:00
Mauro Carvalho Chehab
b32570a4f0 docs: hwmon: misc files: convert to ReST format
Convert other files maintained by Guenter to ReST format, in order
to allow them to be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:51:07 -07:00
Mauro Carvalho Chehab
1f234ff162 docs: hwmon: pmbus files: convert to ReST format
Convert pmbus files to ReST format, in order to allow them to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:51:06 -07:00
Mauro Carvalho Chehab
0d9256262f docs: hwmon: k8temp, w83793: convert to ReST format
Convert k8temp and w83793 to ReST format, in order to allow them
to be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:51:06 -07:00
Mauro Carvalho Chehab
08fae079ea docs: hwmon: da9052, da9055: convert to ReST format
Convert da9052 and da9055 to ReST format, in order to allow
them to be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:51:05 -07:00
Mauro Carvalho Chehab
4f1158b355 docs: hwmon: wm831x, wm8350: convert to ReST format
Convert wm831x and wm8350 to ReST format, in order to allow
them to be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:51:05 -07:00
Mauro Carvalho Chehab
cdc39b091b docs: hwmon: dme1737, vt1211: convert to ReST format
Convert dme1737 and vt1211 to ReST format, in order to allow
them to be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:51:04 -07:00
Mauro Carvalho Chehab
33ffc74ffa docs: hwmon: ads1015: convert to ReST format
Convert ads1015 to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:51:04 -07:00
Mauro Carvalho Chehab
1288cfe043 docs: hwmon: asc7621: convert to ReST format
Convert asc7621 to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:51:03 -07:00
Mauro Carvalho Chehab
a4710b7219 docs: hwmon: ibmpowernv: convert to ReST format
Convert ibmpowernv to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:51:03 -07:00
Mauro Carvalho Chehab
9e929c6745 docs: hwmon: aspeed-pwm-tacho: convert to ReST format
Convert aspeed-pwm-tacho to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:50:33 -07:00
Mauro Carvalho Chehab
270efaa46c docs: hwmon: coretemp: convert to ReST format
Convert coretemp to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:50:33 -07:00
Mauro Carvalho Chehab
ce09cfb600 docs: hwmon: w83791d: convert to ReST format
Convert w83791d to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:50:32 -07:00
Mauro Carvalho Chehab
b413e3fa7f docs: hwmon: fam15h_power: convert to ReST format
Convert fam15h_power to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:50:32 -07:00
Mauro Carvalho Chehab
a9fc881b9b docs: hwmon: pc87360: convert to ReST format
Convert pc87360 to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:50:31 -07:00
Mauro Carvalho Chehab
92e395d7b1 docs: hwmon: emc2103: convert to ReST format
Convert emc2103 to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:50:31 -07:00
Mauro Carvalho Chehab
42c027a5b7 docs: hwmon: sch5627: convert to ReST format
Convert sch5627 to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:50:30 -07:00
Mauro Carvalho Chehab
de6f291746 docs: hwmon: menf21bmc: convert to ReST format
Convert menf21bmc to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:50:29 -07:00
Mauro Carvalho Chehab
a449dff630 docs: hwmon: vexpress: convert to ReST format
Convert vexpress to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:50:26 -07:00
Mauro Carvalho Chehab
f8e8cfda65 docs: hwmon: k10temp: convert to ReST format
Convert k10temp to ReST format, in order to allow it to
be parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 09:33:46 -07:00
Nicolin Chen
5c090abf94 hwmon: (ina3221) Add averaging mode support
The CONFIG register has a 3-bit averaging mode field for users
to setup the number of samples that are collected and averaged
together. This is very useful to filter noise from sensor data.

This patch adds a 'samples' sysfs node using hwmon_chip_samples
of hwmon core, and updates wait time calculation by taking this
samples value into account.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-16 13:10:20 -07:00
Maxim Sloyko
038a9c3d1e hwmon: (pmbus/isl68137) Add driver for Intersil ISL68137 PWM Controller
Intersil ISL68137 is a digital output 7-phase configurable PWM
controller with an AVSBus interface.

Signed-off-by: Maxim Sloyko <maxims@google.com>
Signed-off-by: Robert Lippert <rlippert@google.com>
Signed-off-by: Patrick Venture <venture@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-15 17:19:53 -07:00
Adamski, Krzysztof (Nokia - PL/Wroclaw)
bfe033a048 hwmon: Document the samples attributes
Document new ABI attributes: {in,power,curr,temp}_samples and samples.

Signed-off-by: Krzysztof Adamski <krzysztof.adamski@nokia.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-15 17:19:53 -07:00
Patrick Venture
8e742fc2e2 hwmon: (ir38064) delete incorrect line
Delete line indicating the datasheet was not publicly available.  This
line was originally present as a default during the write-up and was
subsequently not removed once the datasheet was located.

Signed-off-by: Patrick Venture <venture@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-15 17:19:53 -07:00
Maxim Sloyko
00669d196c hwmon: (pmbus/ir38064) Add driver for Infineon IR38064 Voltage Regulator
Add the pmbus driver for the Infineon ir38064 voltage regulator.

VOUT_MODE is not supported by the device.  The driver fakes linear16
mode with exponent value -8.

The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however
this driver does not enable them.

Signed-off-by: Maxim Sloyko <maxims@google.com>
Signed-off-by: Patrick Venture <venture@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-15 17:19:53 -07:00
Patrick Venture
c49b7b3981 hwmon: (ir35221) fix company name
Fix the company name from "Infinion" to "Infineon."

Signed-off-by: Patrick Venture <venture@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-15 17:19:53 -07:00
Stefan Wahren
285d7483aa Documentation: pwm-fan: Add description for RPM support
This adds a short description for the new RPM support of the pwm-fan
driver.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-15 17:19:53 -07:00
Guenter Roeck
6bf2db4621 hwmon: Documentation: Add usage example for HWMON_CHANNEL_INFO
The new HWMON_CHANNEL_INFO macro simplifies the code, reduces the
likelihood of errors, and makes the code easier to read. Add a usage
example to help driver writers to actually use it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-15 17:19:53 -07:00
Lucas Tanure
4cdb562147 hwmon: lochnagar: Add Lochnagar 2 hardware monitoring driver
Lochnagar is an evaluation and development board for Cirrus
Logic Smart CODEC and Amp devices. It allows the connection of
most Cirrus Logic devices on mini-cards, as well as allowing
connection of various application processor systems to provide a
full evaluation platform.

This driver adds support for the hardware monitoring features of
the Lochnagar 2 to the hwmon API. Monitoring is provided for
the board voltages, currents and temperature supported by the
board controller chip.

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-15 17:19:53 -07:00
Linus Torvalds
1a29e85750 A fairly routine cycle for docs - lots of typo fixes, some new documents,
and more translations.  There's also some LICENSES adjustments from
 Thomas.
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Merge tag 'docs-5.1' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "A fairly routine cycle for docs - lots of typo fixes, some new
  documents, and more translations. There's also some LICENSES
  adjustments from Thomas"

* tag 'docs-5.1' of git://git.lwn.net/linux: (74 commits)
  docs: Bring some order to filesystem documentation
  Documentation/locking/lockdep: Drop last two chars of sample states
  doc: rcu: Suspicious RCU usage is a warning
  docs: driver-api: iio: fix errors in documentation
  Documentation/process/howto: Update for 4.x -> 5.x versioning
  docs: Explicitly state that the 'Fixes:' tag shouldn't split lines
  doc: security: Add kern-doc for lsm_hooks.h
  doc: sctp: Merge and clean up rst files
  Docs: Correct /proc/stat path
  scripts/spdxcheck.py: fix C++ comment style detection
  doc: fix typos in license-rules.rst
  Documentation: fix admin-guide/README.rst minimum gcc version requirement
  doc: process: complete removal of info about -git patches
  doc: translations: sync translations 'remove info about -git patches'
  perf-security: wrap paragraphs on 72 columns
  perf-security: elaborate on perf_events/Perf privileged users
  perf-security: document collected perf_events/Perf data categories
  perf-security: document perf_events/Perf resource control
  sysfs.txt: add note on available attribute macros
  docs: kernel-doc: typo "if ... if" -> "if ... is"
  ...
2019-03-09 09:56:17 -08:00
Jeremy Gebben
e9b95485c1 hwmon: (lm85) add support for LM96000 high frequencies
The LM96000 expands the freqency field from 3 to 4 bits, to
add more frequencies in the 22.5 to 30 kHz ranges.

Signed-off-by: Jeremy Gebben <jgebben@sweptlaser.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-02-18 14:23:29 -08:00
Jeremy Gebben
11650cf02e hwmon: (lm85) support the LM96000
It has been supported as a generic lm85 for quite some time.

Signed-off-by: Jeremy Gebben <jgebben@sweptlaser.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-02-18 14:23:29 -08:00
Chengguang Xu
787d07ed8b doc: fix typo in Documentation/hwmon/f71882fg
Just fix a typo in Documentation/hwmon/f71882fg.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-01-07 15:40:29 -07:00
Guenter Roeck
a5c47c0d38 hwmon: Introduce SENSOR_DEVICE_ATTR_{RO, RW, WO} and variants
Introduce SENSOR_DEVICE_ATTR_{RO,RW,WO} and SENSOR_DEVICE_ATTR_2_{RO,RW,WO}
as simplified variants of SENSOR_DEVICE_ATTR and SENSOR_DEVICE_ATTR_2 to
simplify the source code, improve readbility, and reduce the chance of
inconsistencies.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-12-16 15:13:22 -08:00
Jagan Teki
2e9a41bbc1 hwmon: (lm75) Add STLM75 support
The STLM75 is a high-precision digital CMOS temperature sensor
IC with a sigma-delta temperature-to-digital converter.

The configuration register mapping is similar to existing lm75
but the sample rate is 150ms(max).

Tested on real hardware and verified temperature readings are correct.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-12-16 15:13:22 -08:00
Nicolin Chen
9a629d7ada Documentation: hwmon: Add descriptions for ina2xx sysfs entries
There are a few sysfs entries being exposed to user space by the
ina2xx hwmon driver while not getting explicitly documented. So
this patch just adds a description section for them.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-12-16 15:13:15 -08:00
Eddie James
cd261c9832 Documentation: hwmon: Add OCC documentation
Document the hwmon interface for the OCC.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-12-02 16:25:28 -08:00
Chris Packham
f1af93216c hwmon: (adt7475) document mapping of sysfs entries to inputs
As per the usual standard with hwmon drivers the mapping to sysfs
entries follows the register map of the device e.g. in0_input
corresponds to the register 0x20, in1_input corresponds to 0x21 etc.

Hardware designers tend to work with input pins instead of registers
which is where things start to get confusing. A hardware designer might
say "the 1.5V rail is connected to the VCCP pin" leaving the software
designer none the wiser as to which of the sysfs entries should be
associated with the label "1.5V".

Try to bridge the gap by documenting the mapping of sysfs entries to
the corresponding pins. This should allow someone to create a
configuration file or other mapping without needing to dive into the
code and ADT datasheets.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-12-02 16:25:28 -08:00
Kun Yi
6e5c06ad94 hwmon: (adm1275) Allow setting shunt reg value
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>
2018-12-02 16:25:28 -08:00
Nicolin Chen
a9e9dd9c6d hwmon: (ina3221) Read channel input source info from DT
An ina3221 chip has three input ports. Each port is used
to measure the voltage and current of its input source.

The DT binding now has defined bindings for their input
sources, so the driver should read these information and
handle accordingly.

This patch adds a new structure of input source specific
information including input source label, shunt resistor
value and its connection status. It exposes these labels
via in[123]_label sysfs nodes upon available, and also
disables those channels where there are no input source
being connected. Meanwhile, it also adds in[123]_enable
sysfs nodes for users to get control of three channels,
and returns -ENODATA code for any sensor read according
to hwmon ABI.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-10-10 20:37:13 -07:00
Kun Yi
a54ca77a98 hwmon: (lm75) Add MAX31725/6 support
MAX31725/MAX31726 are local temperature sensors with +/- 0.5 degree
Celsius accuracy and 16-bit (0.00390625 degrees Celsius) resolution.
They have a register mapping and encoding compatible with the lm75
series drivers. Address scan and extended temperature range are
not supported by this patch.

Tested on real hardware and verified temperature readings are correct.

Signed-off-by: Kun Yi <kunyi@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-10-10 20:37:13 -07:00
Fabio Estevam
23d3f131bf hwmon: (mc13783-adc) Use nxp.com URLs
Use the nxp.com URLs for the MC13783 and MC13892 datasheets.

The original URLs are still valid, but the nxp.com one is shorter
and more up-to-date.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-10-10 20:37:13 -07:00
Fabio Estevam
3d13aa37ba hwmon: (mc13783-adc) Remove the mention to 'Atlas'
'Atlas' was an internal name for the MC13783 PMIC only and does not
apply to MC13892.

To avoid confusion, remove the 'Atlas' term from the description.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-10-10 20:37:13 -07:00
Michael Hennerich
4e15d05d9c drivers: hwmon: (pmbus/ltc2978) Add support for LTM4686 uModule
This patch adds support for LTM4686 Ultrathin Dual 10A or
Single 20A uModule Regulator with Digital Power System Management.

Datasheet: http://www.analog.com/ltm4686

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-10-10 20:37:13 -07:00
Lothar Felten
3ad867001c hwmon: (ina2xx) fix sysfs shunt resistor read access
fix the sysfs shunt resistor read access: return the shunt resistor
value, not the calibration register contents.

update email address

Signed-off-by: Lothar Felten <lothar.felten@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-08-26 17:45:25 -07:00
Linus Torvalds
f3ea496213 ARM: SoC driver updates
Some of the larger changes this merge window:
  - Removal of drivers for Exynos5440, a Samsung SoC that never saw
    widespread use.
  - Uniphier support for USB3 and SPI reset handling
  - Syste control and SRAM drivers and bindings for Allwinner platforms
  - Qualcomm AOSS (Always-on subsystem) reset controller drivers
  - Raspberry Pi hwmon driver for voltage
  - Mediatek pwrap (pmic) support for MT6797 SoC
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Some of the larger changes this merge window:

   - Removal of drivers for Exynos5440, a Samsung SoC that never saw
     widespread use.

   - Uniphier support for USB3 and SPI reset handling

   - Syste control and SRAM drivers and bindings for Allwinner platforms

   - Qualcomm AOSS (Always-on subsystem) reset controller drivers

   - Raspberry Pi hwmon driver for voltage

   - Mediatek pwrap (pmic) support for MT6797 SoC"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits)
  drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests
  soc: fsl: cleanup Kconfig menu
  soc: fsl: dpio: Convert DPIO documentation to .rst
  staging: fsl-mc: Remove remaining files
  staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
  staging: fsl-dpaa2: eth: move generic FD defines to DPIO
  soc: fsl: qe: gpio: Add qe_gpio_set_multiple
  usb: host: exynos: Remove support for Exynos5440
  clk: samsung: Remove support for Exynos5440
  soc: sunxi: Add the A13, A23 and H3 system control compatibles
  reset: uniphier: add reset control support for SPI
  cpufreq: exynos: Remove support for Exynos5440
  ata: ahci-platform: Remove support for Exynos5440
  soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata
  soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs
  soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs
  soc: mediatek: pwrap: fix cipher init setting error
  dt-bindings: pwrap: mediatek: add pwrap support for MT6797
  reset: uniphier: add USB3 core reset control
  dt-bindings: reset: uniphier: add USB3 core reset support
  ...
2018-08-23 13:52:46 -07:00
Linus Torvalds
5e2d059b52 powerpc updates for 4.19
Notable changes:
 
  - A fix for a bug in our page table fragment allocator, where a page table page
    could be freed and reallocated for something else while still in use, leading
    to memory corruption etc. The fix reuses pt_mm in struct page (x86 only) for
    a powerpc only refcount.
 
  - Fixes to our pkey support. Several are user-visible changes, but bring us in
    to line with x86 behaviour and/or fix outright bugs. Thanks to Florian Weimer
    for reporting many of these.
 
  - A series to improve the hvc driver & related OPAL console code, which have
    been seen to cause hardlockups at times. The hvc driver changes in particular
    have been in linux-next for ~month.
 
  - Increase our MAX_PHYSMEM_BITS to 128TB when SPARSEMEM_VMEMMAP=y.
 
  - Remove Power8 DD1 and Power9 DD1 support, neither chip should be in use
    anywhere other than as a paper weight.
 
  - An optimised memcmp implementation using Power7-or-later VMX instructions
 
  - Support for barrier_nospec on some NXP CPUs.
 
  - Support for flushing the count cache on context switch on some IBM CPUs
    (controlled by firmware), as a Spectre v2 mitigation.
 
  - A series to enhance the information we print on unhandled signals to bring it
    into line with other arches, including showing the offending VMA and dumping
    the instructions around the fault.
 
 Thanks to:
   Aaro Koskinen, Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Alexey
   Spirkov, Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar,
   Arnd Bergmann, Bartosz Golaszewski, Benjamin Herrenschmidt, Bharat Bhushan,
   Bjoern Noetel, Boqun Feng, Breno Leitao, Bryant G. Ly, Camelia Groza,
   Christophe Leroy, Christoph Hellwig, Cyril Bur, Dan Carpenter, Daniel Klamt,
   Darren Stevens, Dave Young, David Gibson, Diana Craciun, Finn Thain, Florian
   Weimer, Frederic Barrat, Gautham R. Shenoy, Geert Uytterhoeven, Geoff Levand,
   Guenter Roeck, Gustavo Romero, Haren Myneni, Hari Bathini, Joel Stanley,
   Jonathan Neuschäfer, Kees Cook, Madhavan Srinivasan, Mahesh Salgaonkar, Markus
   Elfring, Mathieu Malaterre, Mauro S. M. Rodrigues, Michael Hanselmann, Michael
   Neuling, Michael Schmitz, Mukesh Ojha, Murilo Opsfelder Araujo, Nicholas
   Piggin, Parth Y Shah, Paul Mackerras, Paul Menzel, Ram Pai, Randy Dunlap,
   Rashmica Gupta, Reza Arbab, Rodrigo R. Galvao, Russell Currey, Sam Bobroff,
   Scott Wood, Shilpasri G Bhat, Simon Guo, Souptick Joarder, Stan Johnson,
   Thiago Jung Bauermann, Tyrel Datwyler, Vaibhav Jain, Vasant Hegde, Venkat Rao
   B, zhong jiang.
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Merge tag 'powerpc-4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Notable changes:

   - A fix for a bug in our page table fragment allocator, where a page
     table page could be freed and reallocated for something else while
     still in use, leading to memory corruption etc. The fix reuses
     pt_mm in struct page (x86 only) for a powerpc only refcount.

   - Fixes to our pkey support. Several are user-visible changes, but
     bring us in to line with x86 behaviour and/or fix outright bugs.
     Thanks to Florian Weimer for reporting many of these.

   - A series to improve the hvc driver & related OPAL console code,
     which have been seen to cause hardlockups at times. The hvc driver
     changes in particular have been in linux-next for ~month.

   - Increase our MAX_PHYSMEM_BITS to 128TB when SPARSEMEM_VMEMMAP=y.

   - Remove Power8 DD1 and Power9 DD1 support, neither chip should be in
     use anywhere other than as a paper weight.

   - An optimised memcmp implementation using Power7-or-later VMX
     instructions

   - Support for barrier_nospec on some NXP CPUs.

   - Support for flushing the count cache on context switch on some IBM
     CPUs (controlled by firmware), as a Spectre v2 mitigation.

   - A series to enhance the information we print on unhandled signals
     to bring it into line with other arches, including showing the
     offending VMA and dumping the instructions around the fault.

  Thanks to: Aaro Koskinen, Akshay Adiga, Alastair D'Silva, Alexey
  Kardashevskiy, Alexey Spirkov, Alistair Popple, Andrew Donnellan,
  Aneesh Kumar K.V, Anju T Sudhakar, Arnd Bergmann, Bartosz Golaszewski,
  Benjamin Herrenschmidt, Bharat Bhushan, Bjoern Noetel, Boqun Feng,
  Breno Leitao, Bryant G. Ly, Camelia Groza, Christophe Leroy, Christoph
  Hellwig, Cyril Bur, Dan Carpenter, Daniel Klamt, Darren Stevens, Dave
  Young, David Gibson, Diana Craciun, Finn Thain, Florian Weimer,
  Frederic Barrat, Gautham R. Shenoy, Geert Uytterhoeven, Geoff Levand,
  Guenter Roeck, Gustavo Romero, Haren Myneni, Hari Bathini, Joel
  Stanley, Jonathan Neuschäfer, Kees Cook, Madhavan Srinivasan, Mahesh
  Salgaonkar, Markus Elfring, Mathieu Malaterre, Mauro S. M. Rodrigues,
  Michael Hanselmann, Michael Neuling, Michael Schmitz, Mukesh Ojha,
  Murilo Opsfelder Araujo, Nicholas Piggin, Parth Y Shah, Paul
  Mackerras, Paul Menzel, Ram Pai, Randy Dunlap, Rashmica Gupta, Reza
  Arbab, Rodrigo R. Galvao, Russell Currey, Sam Bobroff, Scott Wood,
  Shilpasri G Bhat, Simon Guo, Souptick Joarder, Stan Johnson, Thiago
  Jung Bauermann, Tyrel Datwyler, Vaibhav Jain, Vasant Hegde, Venkat
  Rao, zhong jiang"

* tag 'powerpc-4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (234 commits)
  powerpc/mm/book3s/radix: Add mapping statistics
  powerpc/uaccess: Enable get_user(u64, *p) on 32-bit
  powerpc/mm/hash: Remove unnecessary do { } while(0) loop
  powerpc/64s: move machine check SLB flushing to mm/slb.c
  powerpc/powernv/idle: Fix build error
  powerpc/mm/tlbflush: update the mmu_gather page size while iterating address range
  powerpc/mm: remove warning about ‘type’ being set
  powerpc/32: Include setup.h header file to fix warnings
  powerpc: Move `path` variable inside DEBUG_PROM
  powerpc/powermac: Make some functions static
  powerpc/powermac: Remove variable x that's never read
  cxl: remove a dead branch
  powerpc/powermac: Add missing include of header pmac.h
  powerpc/kexec: Use common error handling code in setup_new_fdt()
  powerpc/xmon: Add address lookup for percpu symbols
  powerpc/mm: remove huge_pte_offset_and_shift() prototype
  powerpc/lib: Use patch_site to patch copy_32 functions once cache is enabled
  powerpc/pseries: Fix endianness while restoring of r3 in MCE handler.
  powerpc/fadump: merge adjacent memory ranges to reduce PT_LOAD segements
  powerpc/fadump: handle crash memory ranges array index overflow
  ...
2018-08-17 11:32:50 -07:00
Shilpasri G Bhat
e0da99123f hwmon: (ibmpowernv) Add attributes to enable/disable sensor groups
OPAL firmware provides the facility for some groups of sensors to be
enabled/disabled at runtime to give the user the option of using the
system resources for collecting these sensors or not.

For example, on POWER9 systems, the On Chip Controller (OCC) gathers
various system and chip level sensors and maintains their values in
main memory.

This patch provides support for enabling/disabling the sensor groups
like power, temperature, current and voltage.

Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
[stewart@linux.vnet.ibm.com: Commit message]
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-07-31 19:56:45 +10:00
Stefan Wahren
74d1e00791 hwmon: Add support for RPi voltage sensor
Currently there is no easy way to detect undervoltage conditions on a
remote Raspberry Pi. This hwmon driver retrieves the state of the
undervoltage sensor via mailbox interface. The handling based on
Noralf's modifications to the downstream firmware driver. In case of
an undervoltage condition only an entry is written to the kernel log.

CC: "Noralf Trønnes" <noralf@tronnes.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Guenter Roeck <linux@roeck-us.net>
2018-07-09 10:47:27 -07:00
Tomer Maimon
f1fd4a4db7 hwmon: Add NPCM7xx PWM and Fan driver
Add Nuvoton BMC NPCM750/730/715/705 Pulse Width Modulation (PWM)
and Fan tacho driver.

The Nuvoton BMC NPCM750/730/715/705 supports 8 PWM controller outputs
and 16 Fan controller inputs.

The driver provides a sysfs entries through which the user can
configure the duty-cycle value from 0(off) and 255(full speed)
and read the fan tacho rpm value.

Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-07-08 20:08:13 -07:00
Kun Yi
7a001dbab4 hwmon: (pmbus/max34440) Add support for MAX34451.
MAX34451 is a 16-Channel Voltage/Current Monitor and 12-Channel
Sequencer.

Signed-off-by: Kun Yi <kunyi@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-07-08 20:08:13 -07:00
Shilpasri G Bhat
fb41a710f8 hwmon: Document the sensor enable attribute
Document new ABI attributes:
	in[0-*]_enable
	fan[1-*]_enable
	temp[1-*]_enable
	curr[1-*]_enable
	power[1-*]_enable
	energy[1-*]_enable
	humidity[1-*]_enable

Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
[groeck: Updated commit text, removed unnecessary details from
 ABI description]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-07-08 20:08:13 -07:00
Vadim Pasternak
65afb4c8e7 hwmon: (mlxreg-fan) Add support for Mellanox FAN driver
Driver obtains PWM and tachometers registers location according to the
system configuration and creates FAN/PWM hwmon objects and a cooling
device. PWM and tachometers are controlled through the on-board
programmable device, which exports its register map. This device could be
attached to any bus type, for which register mapping is supported. Single
instance is created with one PWM control, up to 12 tachometers and one
cooling device. It could be as many instances as programmable device
supports.

Currently driver will be activated from the Mellanox platform driver:
drivers/platform/x86/mlx-platform.c.
For the future ARM based systems it could be activated from the ARM
platform module.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-07-08 20:08:13 -07:00
Mauro Carvalho Chehab
34962fb807 docs: Fix more broken references
As we move stuff around, some doc references are broken. Fix some of
them via this script:
	./scripts/documentation-file-ref-check --fix

Manually checked that produced results are valid.

Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:11:26 -03:00
Tom Levens
5d9ca430ea hwmon: (ltc2990) support all measurement modes
Updated version of the ltc2990 driver which supports all measurement
modes (current, voltage, temperature) available in the chip.

If devicetree is used, the mode must be specified with the property
"lltc,meas-mode". The format and possible values of the property are
described in the binding.

If devicetree is not used, the mode of the chip will not be configured.
Unless the chip is configured by another source, only the internal
temperature and supply voltage will be measured.

Signed-off-by: Tom Levens <tom.levens@cern.ch>
Tested-By: mike.looijmans@topic.nl
[groeck: Fixed compiler warning]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-05-21 07:52:01 -07:00
Lucas Magasweran
59df4f4e8e hwmon: (core) check parent dev != NULL when chip != NULL
hwmon_device_register_with_info() registration API requires a
non-NULL parent device when chip is non-NULL.

This commit adds a check and documents this requirement.

Signed-off-by: Lucas Magasweran <lucas.magasweran@ieee.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-05-21 07:51:59 -07:00
Alvaro G. M
10ecacd794 hwmon: (lm92) Add max6635 to lm92_id[]
Since autodetection of this chip was removed, it makes sense to add prefix
max6635 so that the device can be instantiated by its actual name.

Signed-off-by: Alvaro Gamez Machado <alvaro.gamez@hazent.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-03-22 09:33:24 -07:00
Guenter Roeck
4ff0ce227a hwmon: (pmbus/adm1275) Add support for ADM1272
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>
2018-03-22 09:32:17 -07:00
Alvaro G. M
05993e226a hwmon: (lm92) Do not try to detect MAX6635
Maxim MAX663x family are mostly compatible with LM92, but they lack any
identification register. Weakening the detect function would make it prone
to false positives, and current one doesn't detect all chips.  Therefore,
the detect function for max6635 devices is removed in favor of explicit
device instatiation.

Signed-off-by: Alvaro Gamez Machado <alvaro.gamez@hazent.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-03-22 09:32:05 -07:00
Guenter Roeck
81820059a4 hwmon: (nct6775) Add support for NCT6796D
NCT6796D is mostly compatible to NCT6795D. It supports an additional
pwm control and fan speed channel.

While we are at it, update documentation for NCT6795D.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-03-10 19:00:14 -08:00
Danilo Bargen
b20edea9a6 hwmon: (sht3x) Update data sheet URL
The previously used URL is dead.

Sensirion provides permalinks for their product datasheets at
https://www.sensirion.com/en/about-us/links/.

Signed-off-by: Danilo Bargen <mail@dbrgn.ch>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-03-10 19:00:14 -08:00
Danilo Bargen
8e1d6fe961 hwmon: (sht21) Update data sheet URLs
The previously used URLs are dead.

Sensirion provides permalinks for their product datasheets at
https://www.sensirion.com/en/about-us/links/.

Signed-off-by: Danilo Bargen <mail@dbrgn.ch>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-03-10 19:00:14 -08:00
Andrew Jeffery
cf583b4275 hwmon: (pmbus/max31785) Add dual tachometer support
The dual tachometer feature is implemented in hardware with a TACHSEL
input to indicate the rotor under measurement, and exposed on the device
by extending the READ_FAN_SPEED_1 word with two extra bytes*. The need
to read the non-standard four-byte response leads to a cut-down
implementation of i2c_smbus_xfer_emulated() included in the driver.
Further, to expose the second rotor tachometer value to userspace the
values are exposed through virtual pages. We re-route accesses to
FAN_CONFIG_1_2 and READ_FAN_SPEED_1 on pages 23-28 (not defined by the
hardware) to the same registers on pages 0-5, and with the latter command
we extract the value from the second word of the four-byte response.

* The documentation recommends the slower rotor be associated with
TACHSEL=0, which corresponds to the first word of the response. The
TACHSEL=0 measurement is used by the controller's closed-loop fan
management to judge target fan rate.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-01-02 15:05:34 -08:00
Andrew Jeffery
56ad86b4b1 hwmon: (pmbus/max31785) Add fan control
The implementation makes use of the new fan control virtual registers
exposed by the pmbus core. It mixes use of the default implementations
with some overrides via the read/write handlers to handle FAN_COMMAND_1
on the MAX31785, whose definition breaks the value range into various
control bands dependent on RPM or PWM mode.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-01-02 15:05:34 -08:00
Guenter Roeck
666c14906b hwmon: (pmbus/lm25066) Drop support for LM25063
LM25063 was never released. Drop support for it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-01-02 15:05:34 -08:00
Lei YU
ba3d858844 hwmon: (w83773g) Add documentation
Add documentation for the w83773g driver.

Signed-off-by: Lei YU <mine260309@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-01-02 15:05:34 -08:00
Andrew Jeffery
4d420a6a9d pmbus: Add driver for Maxim MAX31785 Intelligent Fan Controller
The Maxim MAX31785 is a PMBus device providing closed-loop, multi-channel
fan management with temperature and remote voltage sensing. It supports
various fan control features, including PWM frequency control, temperature
hysteresis, dual tachometer measurements, and fan health monitoring.

This patch presents a basic driver using only the existing features of the
PMBus subsystem.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
[groeck: Modified description to clarify that fan control is not yet provided]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-11-05 06:06:33 -08:00
Linus Walleij
186731145f hwmon: (sht15) Root out platform data
After finding out there are active users of this sensor I noticed:

- It has a single PXA27x board file using the platform data
- The platform data is only used to carry two GPIO pins, all other
  fields are unused
- The driver does not use GPIO descriptors but the legacy GPIO
  API

I saw we can swiftly fix this by:

- Killing off the platform data entirely
- Define a GPIO descriptor lookup table in the board file
- Use the standard devm_gpiod_get() to grab the GPIO descriptors
  from either the device tree or the board file table.

This compiles, but needs testing.

Cc: arm@kernel.org
Cc: Marco Franchi <marco.franchi@nxp.com>
Cc: Davide Hug <d@videhug.ch>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Marco Franchi <marco.franchi@nxp.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-10-29 18:36:03 -07:00
Xo Wang
5783ec2e5c hwmon: (pmbus/lm25066) Add support for TI LM5066I
The TI LM5066I hotswap controller is a more accurate version of the
LM5066 device already supported. It has different measurement conversion
coefficients than the LM5066, so it needs to be recognized as a
different device.

Signed-off-by: Xo Wang <xow@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-08-30 06:31:13 -07:00
Edward A. James
caf59a5b63 Documentation: hwmon: Document the IBM CFF power supply
Signed-off-by: Edward A. James <eajames@us.ibm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-08-29 18:07:13 -07:00
Thilo Cestonaro
7576750f03 hwmon: (ftsteutates) Fix clearing alarm sysfs entries
sysfs store functions should return the number of bytes written.
Returning zero results in an endless loop.

Fixes: 08426eda58 ("hwmon: Add driver for FTS BMC chip "Teutates"")
Signed-off-by: Thilo Cestonaro <thilo.cestonaro@ts.fujitsu.com>
[groeck: Clean up documentation change and description]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-08-13 08:24:01 -07:00
Wolfram Sang
4ba1bb12cf hwmon: (pmbus) move header file out of I2C realm
include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-06-11 17:08:19 -07:00
Wolfram Sang
8116e8dd56 hwmon: (ltc4245) move header file out of I2C realm
include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-06-11 17:08:19 -07:00
Wolfram Sang
9010624cc5 hwmon: (ads1015) move header file out of I2C realm
include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-06-11 17:08:19 -07:00
Chris Packham
8f05bcc33e hwmon: (adt7475) temperature smoothing
When enabled temperature smoothing allows ramping the fan speed over a
configurable period of time instead of jumping to the new speed
instantaneously.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-06-11 17:08:19 -07:00
Chris Packham
1d58f5efbf hwmon: (adt7475) fan stall prevention
By default adt7475 will stop the fans (pwm duty cycle 0%) when the
temperature drops past Tmin - hysteresis. Some systems want to keep the
fans moving even when the temperature drops so add new sysfs attributes
that configure the enhanced acoustics min 1-3 which allows the fans to
run at the minimum configure pwm duty cycle.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-06-11 17:08:19 -07:00
Samuel Mendoza-Jonas
8991ebd9c9 hwmon: (pmbus) Add client driver for IR35221
IR35221 is a Digital DC-DC Multiphase Converter

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
[groeck: Preserve alphabetic order in Kconfig;
	add missing break statements (from Dan Carpenter);
	add missing error checks]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-06-11 17:08:19 -07:00
Jaghathiswari Rankappagounder Natarajan
2d7a548a3e drivers: hwmon: Support for ASPEED PWM/Fan tach
The ASPEED AST2400/2500 PWM controller supports 8 PWM output ports.
The ASPEED AST2400/2500 Fan tach controller supports 16 tachometer
inputs.
The device driver matches on the device tree node. The configuration
values are read from the device tree and written to the respective
registers.
The driver provides a sysfs entries through which the user can
configure the duty-cycle value (ranging from 0 to 100 percent) and read
the fan tach rpm value.

Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-04-10 13:12:18 -07:00
Chris Packham
3dead5d596 docs: hwmon: Fix typo "Microship" should be "Microchip"
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-04-02 07:01:53 -07:00
Linus Torvalds
c1aac62f36 A slightly quieter cycle for documentation this time around.
Three more DocBook template files have been converted to RST; only 21 to
 go.  There are various build improvements and the usual array of
 documentation improvements and fixes.
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Merge tag 'docs-4.11' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "A slightly quieter cycle for documentation this time around.

  Three more DocBook template files have been converted to RST; only 21
  to go. There are various build improvements and the usual array of
  documentation improvements and fixes"

* tag 'docs-4.11' of git://git.lwn.net/linux: (44 commits)
  docs / driver-api: Fix structure references in device_link.rst
  PM / docs: Fix structure references in device.rst
  Add a target to check broken external links in the Documentation
  Documentation: Fix linux-api list typo
  Documentation: DocBook/Makefile comment typo
  Improve sparse documentation
  Documentation: make Makefile.sphinx no-ops quieter
  Documentation: DMA-ISA-LPC.txt
  Documentation: input: fix path to input code definitions
  docs: Remove the copyright year from conf.py
  docs: Fix a warning in the Korean HOWTO.rst translation
  PM / sleep / docs: Convert PM notifiers document to reST
  PM / core / docs: Convert sleep states API document to reST
  PM / core: Update kerneldoc comments in pm.h
  doc-rst: Fix recursive make invocation from macros
  doc-rst: Delete output of failed dot-SVG conversion
  doc-rst: Break shell command sequences on failure
  Documentation/sphinx: make targets independent of Sphinx work for HAVE_SPHINX=0
  doc-rst: fixed cleandoc target when used with O=dir
  Documentation/sphinx: prevent generation of .pyc files in the source tree
  ...
2017-02-22 18:51:29 -08:00
Guenter Roeck
f172841573 hwmon: Update documentation to clarify rules for the 'name' attribute
Clarify that the name attribute must report a valid name, and the rules
for valid names. Also clarify that the name parameter must be provided
for all supported API functions.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-01-25 06:14:36 -08:00
Florian Fainelli
68f0c8c923 hwmon: (lm70) Add support for TI TMP122/124
Add support for Texas Instruments TMP122/124 which are nearly identical to
their TMP121/123 except that they also support programmable temperature
thresholds.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-01-21 12:26:38 -08:00
Colin Ian King
0a4cbc53d7 Documentation: fix spelling mistakes of "Celcius" -- > "Celsius"
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-01-04 14:36:17 -07:00
Peter A. Bigot
53e678d75e hwmon: (sht21) Add Electronic Identification Code retrieval
Expose the per-chip unique identifier so it can be used to identify the
sensor producing the measurements.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-01-02 10:19:45 -08:00
Linus Torvalds
1c59e1edb1 hwmon updates for v4.10
- new drivers for TMP108 and TC654
 - hwmon core code cleanup
 - coretemp driver cleanup
 - fix overflow issues in several drivers
 - minor fixes, cleanups and enhancements in various drivers
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Merge tag 'hwmon-for-linus-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:

 - new drivers for TMP108 and TC654

 - hwmon core code cleanup

 - coretemp driver cleanup

 - fix overflow issues in several drivers

 - minor fixes, cleanups and enhancements in various drivers

* tag 'hwmon-for-linus-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (41 commits)
  hwmon: (g762) Fix overflows and crash seen when writing limit attributes
  hwmon: (emcw201) Fix overflows seen when writing into limit attributes
  hwmon: (emc2103) Fix overflows seen when temperature limit attributes
  hwmon: (lm85) Fix overflows seen when writing voltage limit attributes
  hwmon: (lm87) Fix overflow seen when writing voltage limit attributes
  hwmon: (nct7802) Fix overflows seen when writing into limit attributes
  hwmon: (adt7470) Fix overflows seen when writing into limit attributes
  hwmon: (adt7462) Fix overflows seen when writing into limit attributes
  hwmon: (adm1026) Fix overflows seen when writing into limit attributes
  hwmon: (adm1025) Fix overflows seen when writing voltage limits
  hwmon: (via-cputemp) Convert to hotplug state machine
  devicetree: hwmon: Add documentation for TMP108 driver.
  hwmon: Add Texas Instruments TMP108 temperature sensor driver.
  hwmon: (core) Simplify sysfs attribute name allocation
  hwmon: (core) Rename groups parameter in API to extra_groups
  hwmon: (core) Explain why at least two attribute groups are allocated
  hwmon: (core) Make is_visible callback truly mandatory
  hwmon: (core) Deprecate hwmon_device_register()
  hwmon: (core) Clarify use of chip attributes
  hwmon: (core) Add support for string attributes to new API
  ...
2016-12-13 15:43:56 -08:00
John Muir
66e1c91713 hwmon: Add Texas Instruments TMP108 temperature sensor driver.
Add support for the TI TMP108 temperature sensor with some device
configuration parameters.

Signed-off-by: John Muir <john@jmuir.com>
[groeck: Initialize of_match_table]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-12-09 21:54:25 -08:00
Guenter Roeck
848ba0a2f2 hwmon: (core) Rename groups parameter in API to extra_groups
The 'groups' parameter of hwmon_device_register_with_info() and
devm_hwmon_device_register_with_info() is only necessary if extra
non-standard attributes need to be provided. Rename the parameter
to extra_groups and clarify the documentation.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-12-09 21:54:22 -08:00
Guenter Roeck
af1bd36c06 hwmon: (core) Deprecate hwmon_device_register()
Inform the user that hwmon_device_register() is deprecated,
and suggest conversion to the newest API. Also remove
hwmon_device_register() from the kernel API documentation.

Note that hwmon_device_register() is not marked as __deprecated()
since doing so might result in build errors.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-12-09 21:54:19 -08:00
Guenter Roeck
f4d325d5ed hwmon: (core) Clarify use of chip attributes
Describing chip attributes as "attributes which apply to the entire chip"
is confusing. Rephrase to "attributes which are not bound to a specific
input or output".

Also rename hwmon_chip_attr_templates[] to hwmon_chip_attrs[] to indicate
that the respective strings strings are not templates but actual attribute
names.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-12-09 21:54:18 -08:00
Chris Packham
aaf6fabf1b hwmon: Add tc654 driver
Add support for the tc654 and tc655 fan controllers from Microchip.

http://ww1.microchip.com/downloads/en/DeviceDoc/20001734C.pdf

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Rob Herring <robh@kernel.org>
[groeck: Fixed continuation line alignments]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-12-02 13:28:05 -08:00
Mauro Carvalho Chehab
8c27ceff36 docs: fix locations of several documents that got moved
The previous patch renamed several files that are cross-referenced
along the Kernel documentation. Adjust the links to point to
the right places.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-24 08:12:35 -02:00
Mike Looijmans
20005cc58d hwmon: (max6650) Allow fan shutdown and initial rpm target
The fan can be stopped by writing "3" to pwm1_enable in sysfs.

Add devicetree property for early initialization of the fan controller
to prevent overheating, for example when resetting the board while the
fan was completely turned off.

Also improve error reporting, I2C failures were ignored while writing
new values.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-09-08 21:34:17 -07:00
Matt Weber
50b2b02c40 hwmon: (ucd9000) Add support for UCD90160 Power Supply Sequencer
The UCD90160 Power Supply Sequencer reuses the existing register layout,
so just an id addition was required.

Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Ronak Desai <ronak.desai@rockwellcollins.com>
[groeck: Updated description, ordered alphabetically, added documentation]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-09-08 21:34:16 -07:00
hotran
ed42cfa881 hwmon: Add xgene hwmon driver
This patch adds hardware temperature and power reading support for
APM X-Gene SoC using the mailbox communication interface.

Signed-off-by: Hoan Tran <hotran@apm.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-09-08 21:34:16 -07:00
Joshua Scott
aa18cc911a hwmon: (adt7470) Expose PWM frequency to sysfs
The ADT7470 supports a variety of PWM frequencies. This patch allows the
frequency to be configured and viewed through the sysfs entry pwm1_freq.

Signed-off-by: Joshua Scott <joshua.scott@alliedtelesis.co.nz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-09-08 21:34:16 -07:00
Guenter Roeck
f9f7bb3a0e hwmon: (core) Add basic pwm attribute support to new API
Add basic pwm attribute support (no auto attributes) to new API.

Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-09-08 21:34:15 -07:00
Guenter Roeck
bf7153fd2c hwmon: (core) Document new kernel API
Describe the new registration API function as well as the data
structures it requires.

Acked-by: Punit Agrawal <punit.agrawal@arm.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-09-08 21:34:15 -07:00
Thilo Cestonaro
4a008c0021 hwmon: (ftsteutates) Correct ftp urls in driver documentation
Signed-off-by: Thilo Cestonaro <thilo@cestona.ro>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-08-12 05:56:34 -07:00
Thilo Cestonaro
08426eda58 hwmon: Add driver for FTS BMC chip "Teutates"
This driver implements hardware monitoring and watchdog support
for the FTS BMC Chip "Teutates".

Signed-off-by: Thilo Cestonaro <thilo@cestona.ro>
[groeck: Updated subject and description; fixed dependencies]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-07-20 06:29:54 -07:00
Matt Ranostay
50c22cd154 hwmon: (sht3x) add humidity heater element control
The enables control of the SHT31 sensors heating element that can turned
on to remove excess humidity.

Cc: Guenter Roeck <linux@roeck-us.net>
Cc: David Frey <david.frey@sensirion.com>
Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-07-16 08:40:13 -07:00
Alison Schofield
a31887dc9b hwmon: (jc42) Add support for Microchip MCP9808 temperature sensor
MCP9808 is not officially compliant to JC-42, similar to MCP9804,
but its registers are compatible to JC-42.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-06-27 18:58:04 -07:00
Guenter Roeck
165720d9ff hwmon: Update guildelines for submitting patches
Add more details to the guidelines for submitting patches.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-06-27 18:58:03 -07:00
Andrew F. Davis
7cb6dcff19 hwmon: Add support for INA3221 Triple Current/Voltage Monitors
Add support for the the INA3221 26v capable, Triple channel,
Bi-Directional, Zero-Drift, Low-/High-Side, Current/Voltage Monitor
with I2C interface.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-06-27 18:58:03 -07:00
Andrew F. Davis
c0a6860180 hwmon: (tmp401) Add support for TI TMP461
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-06-27 18:58:03 -07:00
David Frey
7c84f7f80d hwmon: add support for Sensirion SHT3x sensors
This driver implements support for the Sensirion SHT3x-DIS chip,
a humidity and temperature sensor. Temperature is measured
in degrees celsius, relative humidity is expressed as a percentage.
In the sysfs interface, all values are scaled by 1000,
i.e. the value for 31.5 degrees celsius is 31500.

Signed-off-by: Pascal Sachs <pascal.sachs@sensirion.com>
[groeck: Fixed 'Variable length array is used' gcc warning]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-06-27 18:58:03 -07:00
Andrea Gelmini
76b5808e8c hwmon: (max1668) Fix typo in documentation
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
[groeck: Updated subject]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-06-27 18:58:02 -07:00
Andrea Gelmini
b675704220 hwmon: (abituguru) Fix typos in documentation
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
[groeck: Updated subject]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-06-27 18:58:02 -07:00
Linus Torvalds
c5436731de Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon fixlets from Jean Delvare.

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  Documentation/hwmon: Update links in max34440
  hwmon: (emc2103) Fix typo in MODULE_PARM_DESC
2016-05-26 09:48:23 -07:00
Glenn Dayton
1dc2c9f54b Documentation/hwmon: Update links in max34440
It appears the website for maxim-ic.com changed to
maximintegrated.com.

Signed-off-by: Glenn Dayton <glenn.dayton24@gmail.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2016-05-26 11:06:53 +02:00
Linus Torvalds
e9ad9b9bd3 The most interesting thing (IMO) this time around is some beginning
infrastructural work to allow documents to be written using restructured
 text.  Maybe someday, in a galaxy far far away, we'll be able to eliminate
 the DocBook dependency and have a much better integrated set of kernel
 docs.  Someday.
 
 Beyond that, there's a new document on security hardening from Kees, the
 movement of some sample code over to samples/, a number of improvements to
 the serial docs from Geert, and the usual collection of corrections, typo
 fixes, etc.
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Merge tag 'docs-for-linus' of git://git.lwn.net/linux

Pull Documentation updates from Jon Corbet:
 "A bit busier this time around.

  The most interesting thing (IMO) this time around is some beginning
  infrastructural work to allow documents to be written using
  restructured text.  Maybe someday, in a galaxy far far away, we'll be
  able to eliminate the DocBook dependency and have a much better
  integrated set of kernel docs.  Someday.

  Beyond that, there's a new document on security hardening from Kees,
  the movement of some sample code over to samples/, a number of
  improvements to the serial docs from Geert, and the usual collection
  of corrections, typo fixes, etc"

* tag 'docs-for-linus' of git://git.lwn.net/linux: (55 commits)
  doc: self-protection: provide initial details
  serial: doc: Use port->state instead of info
  serial: doc: Always refer to tty_port->mutex
  Documentation: vm: Spelling s/paltform/platform/g
  Documentation/memcg: update kmem limit doc as codes behavior
  docproc: print a comment about autogeneration for rst output
  docproc: add support for reStructuredText format via --rst option
  docproc: abstract terminating lines at first space
  docproc: abstract docproc directive detection
  docproc: reduce unnecessary indentation
  docproc: add variables for subcommand and filename
  kernel-doc: use rst C domain directives and references for types
  kernel-doc: produce RestructuredText output
  kernel-doc: rewrite usage description, remove duplicated comments
  Doc: correct the location of sysrq.c
  Documentation: fix common spelling mistakes
  samples: v4l: from Documentation to samples directory
  samples: connector: from Documentation to samples directory
  Documentation: xillybus: fix spelling mistake
  Documentation: x86: fix spelling mistakes
  ...
2016-05-19 18:07:25 -07:00
Kees Cook
08559657b2 Documentation: fix common spelling mistakes
This fixes several spelling mistakes in the Documentation/ tree, which
are caught by checkpatch.pl's spell checking.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-04-28 07:51:59 -06:00
Guenter Roeck
71a9c23246 hwmon: (it87) Add support for IT8628E
IT8628E is functionally identical to IT8620E.

Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19 06:32:38 -07:00
Huang Rui
a6e232f786 hwmon: (fam15h_power) Add documentation for TDP and accumulated power algorithm
This patch adds the description to explain the TDP reporting mechanism
and accumulated power algorithm.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19 06:32:35 -07:00
Tiberiu Breana
04e1e70afe hwmon: (max31722) Add support for MAX31722/MAX31723 temperature sensors
Add basic support for the Maxim Integrated MAX31722/MAX31723 SPI
temperature sensors / thermostats.

Includes:
    - ACPI support;
    - raw temperature readings;
    - power management

Datasheet:
https://datasheets.maximintegrated.com/en/ds/MAX31722-MAX31723.pdf

Signed-off-by: Tiberiu Breana <tiberiu.a.breana@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19 06:32:34 -07:00
Adam Baker
630300d5fc hwmon: Create an NSA320 hardware monitoring driver
Create a driver to support the hardware monitoring chip present in
the Zyxel NSA320 and some of the other Zyxel NAS devices.

The driver reads fan speed and temperature from a suitably
pre-programmed MCU on the device.

Signed-off-by: Adam Baker <linux@baker-net.org.uk>
[groeck: Dropped .owner field initialization]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-08 18:40:49 -08:00
Guenter Roeck
709066acdd hwmon: (adm1275) Add support for ADM1278
ADM1278 is mostly compatible to other chips of the same series.
Besides the usual difference in coefficients, it supports
a temperature sensor, and it can measure both input and output
voltage at the same time.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:36:03 -08:00
Joseph McNally
54ce3a0d80 hwmon: (ntc_thermistor) Add support for ncpXXxh103
This patch adds support for the Murata NCP15XH103 thermistor series.

Signed-off-by: Joseph McNally <jmcna06@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:25:34 -08:00
Masanari Iida
92417dad64 Doc: hwmon: Fix typo "montoring" in hwmon
This patch fix typos found in files within Documentation/hwmon.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:25:34 -08:00
Mike Looijmans
df92270357 hwmon: Add LTC2990 sensor driver
This adds support for the Linear Technology LTC2990  I2C System Monitor.
The LTC2990 supports a combination of voltage, current and temperature
monitoring. This driver currently only supports reading two currents
by measuring two differential voltages across series resistors, in
addition to the Vcc supply voltage and internal temperature.

This is sufficient to support the Topic Miami SOM which uses this chip
to monitor the currents flowing into the FPGA and the CPU parts.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:25:34 -08:00
Guenter Roeck
8d28cd1b1f hwmon: (pmbus) Add client driver for LTC3815
LTC3815 is a Monolithic Synchronous DC/DC Step-Down Converter.

Cc: Michael Jones <mike@proclivis.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-12-18 08:20:59 -08:00
Guenter Roeck
2ff44072e3 hwmon: (htu21) Remove driver
HTU21 is now supported by IIO, and can be instantiated as hwmon driver
using the iio-hwmon bridge. An explicit hwmon driver is no longer needed.

Cc: William Markezana <william.markezana@meas-spec.com>
Cc: Ludovic Tancerel <ludovic.tancerel@maplehightech.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-12-18 08:20:59 -08:00
Linus Torvalds
b44a3d2a85 ARM: SoC driver updates for v4.4
As we've enabled multiplatform kernels on ARM, and greatly done away with
 the contents under arch/arm/mach-*, there's still need for SoC-related
 drivers to go somewhere.
 
 Many of them go in through other driver trees, but we still have
 drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
 that might be shared between ARM and ARM64 (or just in general makes
 sense to not have under the architecture directory).
 
 This branch contains mostly such code:
 
 - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to communicate
   with power management blocks on these SoCs for use by clock, regulator and
   bus frequency drivers.
 - Allwinner Reduced Serial Bus driver, again used to communicate with PMICs.
 - Drivers for ARM's SCPI (System Control Processor). Not to be confused with
   PSCI (Power State Coordination Interface). SCPI is used to communicate with
   the assistant embedded cores doing power management, and we have yet to see
   how many of them will implement this for their hardware vs abstracting in
   other ways (or not at all like in the past).
 - To make confusion between SCPI and PSCI more likely, this release also
   includes an update of PSCI to interface version 1.0.
 - Rockchip support for power domains.
 - A driver to talk to the firmware on Raspberry Pi.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "As we've enabled multiplatform kernels on ARM, and greatly done away
  with the contents under arch/arm/mach-*, there's still need for
  SoC-related drivers to go somewhere.

  Many of them go in through other driver trees, but we still have
  drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
  that might be shared between ARM and ARM64 (or just in general makes
  sense to not have under the architecture directory).

  This branch contains mostly such code:

   - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to
     communicate with power management blocks on these SoCs for use by
     clock, regulator and bus frequency drivers.

   - Allwinner Reduced Serial Bus driver, again used to communicate with
     PMICs.

   - Drivers for ARM's SCPI (System Control Processor).  Not to be
     confused with PSCI (Power State Coordination Interface).  SCPI is
     used to communicate with the assistant embedded cores doing power
     management, and we have yet to see how many of them will implement
     this for their hardware vs abstracting in other ways (or not at all
     like in the past).

   - To make confusion between SCPI and PSCI more likely, this release
     also includes an update of PSCI to interface version 1.0.

   - Rockchip support for power domains.

   - A driver to talk to the firmware on Raspberry Pi"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits)
  soc: qcom: smd-rpm: Correct size of outgoing message
  bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus
  bus: sunxi-rsb: Add Allwinner Reduced Serial Bus (RSB) controller bindings
  ARM: bcm2835: add mutual inclusion protection
  drivers: psci: make PSCI 1.0 functions initialization version dependent
  dt-bindings: Correct paths in Rockchip power domains binding document
  soc: rockchip: power-domain: don't try to print the clock name in error case
  soc: qcom/smem: add HWSPINLOCK dependency
  clk: berlin: add cpuclk
  ARM: berlin: dts: add CLKID_CPU for BG2Q
  ARM: bcm2835: Add the Raspberry Pi firmware driver
  soc: qcom: smem: Move RPM message ram out of smem DT node
  soc: qcom: smd-rpm: Correct the active vs sleep state flagging
  soc: qcom: smd: delete unneeded of_node_put
  firmware: qcom-scm: build for correct architecture level
  soc: qcom: smd: Correct SMEM items for upper channels
  qcom-scm: add missing prototype for qcom_scm_is_available()
  qcom-scm: fix endianess issue in __qcom_scm_is_call_available
  soc: qcom: smd: Reject send of too big packets
  soc: qcom: smd: Handle big endian CPUs
  ...
2015-11-10 15:00:03 -08:00
Arnd Bergmann
c049adc9fd ARM System Control and Power Interface(SCPI) support
It adds support for the following features provided by SCP firmware
 using different subsystems in Linux:
   1. SCPI mailbox protocol driver which using mailbox framework
   2. Clocks provided by SCP using clock framework
   3. CPU DVFS(cpufreq) using existing arm-big-little driver
   4. SCPI based sensors including temperature sensors
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Merge tag 'arm-scpi-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into next/drivers

Merge "ARM System Control and Power Interface(SCPI) support" from Sudeep Holla

It adds support for the following features provided by SCP firmware
using different subsystems in Linux:
  1. SCPI mailbox protocol driver which using mailbox framework
  2. Clocks provided by SCP using clock framework
  3. CPU DVFS(cpufreq) using existing arm-big-little driver
  4. SCPI based sensors including temperature sensors

* tag 'arm-scpi-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  hwmon: Support thermal zones registration for SCP temperature sensors
  hwmon: Support sensors exported via ARM SCP interface
  firmware: arm_scpi: Extend to support sensors
  Documentation: add DT bindings for ARM SCPI sensors
  cpufreq: arm_big_little: add SCPI interface driver
  clk: scpi: add support for cpufreq virtual device
  clk: add support for clocks provided by SCP(System Control Processor)
  firmware: add support for ARM System Control and Power Interface(SCPI) protocol
  Documentation: add DT binding for ARM System Control and Power Interface(SCPI) protocol
2015-10-14 17:07:32 +02:00
Ben Gardner
9c32e815cf hwmon: (lm75) Add support for TMP75C
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 <gardner.ben@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-10-14 07:57:14 -07:00
Il Han
195a4b4298 hwmon: Driver for Maxim MAX31790
The driver supports the Maxim MAX31790.

Signed-off-by: Il Han <corone.il.han@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-10-14 07:57:14 -07:00
Punit Agrawal
ea98b29a05 hwmon: Support sensors exported via ARM SCP interface
Create a driver to add support for SoC sensors exported by the System
Control Processor (SCP) via the System Control and Power Interface
(SCPI). The supported sensor types is one of voltage, temperature,
current, and power.

The sensor labels and values provided by the SCP are exported via the
hwmon sysfs interface.

Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Cc: Sudeep Holla <sudeep.holla@arm.com>
2015-10-09 11:05:52 +01:00
Guenter Roeck
cd1faefa66 hwmon: (nct6775) Add support for NCT6793D
NCT6793D is register compatible with NCT6792D.

Also move nct6775_sio_names[] closer to enum kinds to simplify
adding new chips.

Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-09-12 19:43:02 -07:00
Huang Rui
5aeb5d205e hwmon: (fam15h_power) Add documentation for new processors support
This patch updates description of fam15h_power driver, its scope is
extended to family 16h processsors.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-27 07:51:15 -07:00
Guenter Roeck
ccf2dc51bc hwmon: (ltc2978) Add support for LTM4675
LTM2975 is a dual 9A or single 18A μModule regulator.
It is register compatible with LTM4676.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-19 09:08:55 -07:00
Guenter Roeck
228b687d9e hwmon: (ltc2978) Add support for LTC3886
LTC3886 is a is a dual PolyPhase DC/DC synchronous step-down switching
regulator controller. It is mostly command compatible to LTC3883,
but supports two phases instead of one.

Suggested-by: Michael Jones <mike@proclivis.com>
Tested-by: Michael Jones <mike@proclivis.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-17 16:36:00 -07:00
Guenter Roeck
52aae6af71 hwmon: (ltc2978) Add support for LTC2980 and LTM2987
LTC2980 and LTM2987 are command compatible to LTC2977. They consist of
two LTC2977 on a single die, and are instantiated as two separate chips,
each supporting eight channels.

Suggested-by: Michael Jones <mike@proclivis.com>
Tested-by: Michael Jones <mike@proclivis.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-17 16:35:59 -07:00
Guenter Roeck
649ca820da hwmon: (ltc2978) Add support for LTC2975
LTC2975 is mostly compatible to LTC2974, but supports input current
and power measurement.

Tested-by: Michael Jones <mike@proclivis.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-17 11:55:55 -07:00
Guenter Roeck
15398566f0 hwmon: (ltc2978) Add support for LTC3887
LTC3887 is an enhanced version of LTC3880 and supports the same commands.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-12 12:29:36 -07:00
Guenter Roeck
bf89386f16 hwmon: (ltc2978) Add support for LTC3882
LTC3882 is mostly compatible with LTC3880. Major differences are that it
does not measure the input current, and it no longer supports LTC's legacy
mechanism to identify the chip.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-12 12:29:22 -07:00
Guenter Roeck
cfca3789e0 hwmon: (pmbus) Add device IDs for TPS544{B,C}2{0,5}
Add device IDs and references for Texas Instruments TPS544B20, TPS544B25,
TPS544C20, and TPS544C25 to the generic PMBus driver.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-10 22:59:47 -07:00
Guenter Roeck
1f61cab8a7 hwmon: (pmbus) Add support for MAX20751
MAX20751 is a multiphase power controller with internal buck converter.
It uses VR12.0 to report the output voltage. This requires an explicit
driver, since the VR version can not be auto-detected.

The chip supports a manufacturer specific command to fine-tune the output
voltage.  This command is not currently supported.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-09 13:44:27 -07:00
Justin Maggard
ead8080351 hwmon: (it87) Add support for IT8732F
Add support for the IT8732F.  This chip is pretty similar to IT8721F,
with the main difference being that the ADC LSB is 10.9 mV instead of
12 mV.

Signed-off-by: Justin Maggard <jmaggard@netgear.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-09 13:44:27 -07:00
Constantine Shulyupin
1c6e8f6ba8 hwmon: (nct7802) Add auto_point attributes
Introduced REG_PWM, pwm[1..3]_auto_point[1..5]_temp,
pwm[1..3]_auto_point[1..5]_pwm, nct7802_auto_point_attrs,
nct7802_auto_point_group, updated nct7802_regmap_is_volatile

Signed-off-by: Constantine Shulyupin <const@MakeLinux.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-09 13:44:27 -07:00
Guenter Roeck
68a4038236 hwmon: (adm1275) Add support for ADM1293 and ADM1294
ADM1293 and ADM1294 are mostly compatible with other chips of the same
series, but have more configuration options. There are also some
differences in register details.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-09 13:44:27 -07:00
Guenter Roeck
0d6aaffc3a hwmon: (nct7904) Rename pwm attributes to match hwmon ABI
pwm attributes have well defined names, which should be used.

Cc: Vadim V. Vlasov <vvlasov@dev.rtsoft.ru>
Cc: stable@vger.kernel.org #v4.1+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-07-29 20:06:46 -07:00
Jean Delvare
97607f9882 hwmon: Document which I2C addresses can be probed
Add an item to the checklist when submitting a new hwmon driver: only
some I2C addresses can be probed, others should not for safety
reasons.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2015-07-03 14:39:05 +02:00
Roger Lucas
f617f7310c hwmon: (w83792d) Additional PWM outputs support
Add pwm[4-7] and the associated pwm[4-7]_mode attributes.

Signed-off-by: Roger Lucas <vt8231@hiddenengine.co.uk>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2015-07-03 14:39:05 +02:00
Maciej S. Szmigiero
761c1770f2 hwmon: add driver for Microchip TC74
Add hwmon driver for the Microchip TC74.

The TC74 is a single-input 8-bit I2C temperature sensor,
with +-2 degrees centigrade accuracy.

Signed-off-by: Maciej Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-06-21 22:54:53 -07:00
Beomho Seo
887ee43477 hwmon: (ntc_thermistor) Add support for ncpXXwf104
This patch adds support for the ntc thermistor NCPXXWF104 series.

Cc: Jean Delvare <jdelvare@suse.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-31 22:58:36 -07:00
Guenter Roeck
9aecac04d8 hwmon: (tmp401) Do not auto-detect chip on I2C address 0x37
I2C address 0x37 may be used by EEPROMs, which can result in false
positives. Do not attempt to detect a chip at this address.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Cc: stable@vger.kernel.org # v4.0+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-29 13:37:06 -07:00
Guenter Roeck
3ba9d977a9 hwmon: (it87) Add support for IT8620E
IT8620E is mostly compatible to IT7828F. Add generic support for it.

IT8620E supports up to 6 fan tachometers and 6 pwm controls.
Support for the 6th tachometer and for the additional pwm controls
are addded in separate patches.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05 06:01:00 -07:00
Guenter Roeck
4ee07157d6 hwmon: (it87) Add support for IT8790E
IT8790E is a super-IO chip with three fan tachometers. It is mostly
compatible to IT8728F, but only supports three fan tachometers
instead of five.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05 06:00:59 -07:00
Vadim V. Vlasov
9c947d25c9 hwmon: Add Nuvoton NCT7904 hwmon driver
The NCT7904D is a hardware monitor supporting up to 20 voltage sensors,
internal temperature sensor, Intel PECI and AMD SB-TSI CPU temperature
interface, up to 12 fan tachometer inputs, up to 4 fan control channels
with SmartFan.

Signed-off-by: Vadim V. Vlasov <vvlasov@dev.rtsoft.ru>
[Guenter Roeck: Fixed whitespace errors, dropped redundant comment]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-09 09:59:36 -07:00
Thomas Lorblanches
a0c1424acb hwmon: (it87) Add support for IT8786E
IT8786E is mostly compatible with IT8771 / IT8772.
Parameters determined by testing various combinations.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Thomas Lorblanches <zlika_ese@hotmail.com>
[Guenter Roeck: merged from github, addressed review comments]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-09 09:59:36 -07:00
Guenter Roeck
0ea2f1db8e hwmon: (jc42) Add support for additional IDT temperature sensors
TS3000GB0 has a new device ID (0x2913). Since IDT's datasheets suggest
that the upper 8 bit of the device ID reflect the chip ID and the lower
8 bit reflect the version number, modify the code to accept all chips
with ID 0x29xx.

Also add support for TS3001 and TSE2004.

Some of the datasheets for older chips are no longer available from
the IDT web site, so replace explicit links in the documentation with
a generic note.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-09 09:59:35 -07:00
Guenter Roeck
7bc32d298b hwmon: (it87) Add support for IT8781F
IT8781F is mostly compatible to IT8782F. Major difference is that it only
supports four instead of six UART channels, and therefore does not share
the uart6 pins.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-09 09:59:35 -07:00
Kevin Hilman
add513be1c hwmon: (ina2xx) Add ina231 compatible string
Add support for "ina231" as compatible string, and update
Documentation and Kconfig accordingly.

Tested with the Exynos5422-based odroid-xu3 board which has on-board
INA231 sensors.

Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-01-25 21:23:59 -08:00
Bartosz Golaszewski
72a87a47a8 hwmon: (ina2xx) implement update_interval attribute for ina226
This attribute allows to configure the update interval of ina226. Although
the bus and shunt voltage conversion times remain hardcoded to 1.1 ms, we can
now modify said interval by changing the averaging rate.

While we're at it - add an additional variable to ina2xx_data, which holds
the current configuration settings - this way we'll be able to restore the
configuration in case of an unexpected chip reset.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-01-25 21:23:59 -08:00
Bartosz Golaszewski
8a5fc79513 hwmon: (ina2xx) make shunt resistance configurable at run-time
The shunt resistance can only be set via platform_data or device tree. This
isn't suitable for devices in which the shunt resistance can change/isn't
known at boot-time.

Add a sysfs attribute that allows to read and set the shunt resistance.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-01-25 21:23:59 -08:00
Guenter Roeck
907a6d5824 hwmon: (tmp401) Detect TMP435 on all addresses it supports
TMP435 supports a range of I2C addresses, not just 0x4c.

Cc: Patrick Titiano <ptitiano@baylibre.com>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-12-08 06:48:37 -08:00
Patrick Titiano
06adbaec2a hwmon: (tmp401) Add support for TI TMP435
Signed-off-by: Patrick Titiano <ptitiano@baylibre.com>
[Bartosz Golaszewski: prepared for submission, code review fixes]
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
[Guenter Roeck: Merged two patches into one]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-12-04 10:59:42 -08:00
Guenter Roeck
dfcd4c53be hwmon: (lm95234) Add support for LM95233
LM95233 is similar to LM95234, but it only supports two
instead of four external temperature sensors.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-12-02 06:11:53 -08:00
Guenter Roeck
162a8dfe73 hwmon: (lm95245) Add support for LM95235
LM95235 is register compatible to LM95245.

Also update link to LM95245 data sheet, and drop the link to the
datasheet from the driver source to simplify code maintenance.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-12-02 03:44:18 -08:00
Guenter Roeck
8aefb93f09 hwmon: (nct6775) Add support for NCT6792D
NCT6792D is similar to NCT6791D. Only beep control and temperature
monitoring registers are different.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-30 20:13:13 -08:00
Guenter Roeck
b6e6dd8e9f hwmon: (nct6775) Documentation updates
Document support for NCT6102D/NCT6104D/NCT6106D and NCT6791D.
Document that NCT5573D is compatible to NCT6775F with the same chip ID.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-30 20:13:13 -08:00
Michael Thalmeier
799fc60214 hwmon: (lm75) Add support for the NXP LM75B
It is basically a faster lm75 with improved (11 bit) resolution.

Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-30 20:13:13 -08:00
Guenter Roeck
3434f37835 hwmon: Driver for Nuvoton NCT7802Y
NCT7802Y is an I2C based hardware monitoring chip from Nuvoton.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-30 20:13:13 -08:00
Guenter Roeck
7ad8966f4f Immutable branch between MFD, HWMON, LEDs and Watchdog for v3.18
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Merge tag 'mfd-hwmon-leds-watchdog-v3.18' into hwmon-next

Immutable branch between MFD, HWMON, LEDs and Watchdog for v3.18
2014-09-24 09:25:06 -07:00
Andreas Werner
964356938f hwmon: (menf21bmc) Introduce MEN14F021P00 BMC HWMON driver
Added driver to support the 14F021P00 BMC Hardware Monitoring.
The BMC is a Board Management Controller including monitoring of the
board voltages.

Signed-off-by: Andreas Werner <andreas.werner@men.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-24 15:36:33 +01:00
Aravind Gopalakrishnan
f89ce2706d hwmon: (k10temp) Add support for F15h M60h
This patch adds temperature monitoring support for F15h M60h processor.
 - Add new pci device id for the relevant processor
 - The functionality of REG_REPORTED_TEMPERATURE is moved to
   D0F0xBC_xD820_0CA4 [Reported Temperature Control]
   - So, use this to get CUR_TEMP value
   - Since we need an indirect register access, protect this with
     a mutex lock
 - Add Kconfig, Doc entries to indicate support for this processor.

Signed-off-by: Aravind Gopalakrishnan <aravind.gopalakrishnan@amd.com>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
[Guenter Roeck: Declare new mutex and function static]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-09-22 11:14:52 -07:00
Kamil Debski
d82d57767c hwmon: Add pwm-fan driver
The pwm-fan driver enables control of fans connected to PWM lines.
This driver uses the PWM framework, so it is compatible with all
PWM devices that provide drivers through the PWM framework.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
[Guenter Roeck: Last argument to devm_of_pwm_get is pointer, use NULL]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04 07:01:38 -07:00
Neelesh Gupta
24c1aa8587 hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature
This patch adds basic kernel support for reading power values, fan
speed rpm, voltage and temperature data on powernv platforms which
will be exported to user space through sysfs interface.

Test results:
-------------
[root@tul163p1 ~]# sensors
ibmpowernv-isa-0000
Adapter: ISA adapter
fan1:        5465 RPM  (min =    0 RPM)
fan2:        5152 RPM  (min =    0 RPM)
fan3:        5521 RPM  (min =    0 RPM)
fan4:        4891 RPM  (min =    0 RPM)
fan5:           0 RPM  (min =    0 RPM)
fan6:           0 RPM  (min =    0 RPM)
fan7:        7480 RPM  (min =    0 RPM)
fan8:        7944 RPM  (min =    0 RPM)
temp1:        +39.0°C  (high =  +0.0°C)
power1:      190.00 W

[root@tul163p1 ~]# ls /sys/devices/platform/
alarmtimer  ibmpowernv.0  power  rtc-generic  serial8250  uevent
[root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/
device	    fan2_min	fan4_min    fan6_min	fan8_min   power
fan1_fault  fan3_fault	fan5_fault  fan7_fault	in1_fault  power1_input
fan1_input  fan3_input	fan5_input  fan7_input	in2_fault  subsystem
fan1_min    fan3_min	fan5_min    fan7_min	in3_fault  temp1_input
fan2_fault  fan4_fault	fan6_fault  fan8_fault	in4_fault  temp1_max
fan2_input  fan4_input	fan6_input  fan8_input	name	   uevent
[root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/
device	    fan2_min	fan4_min    fan6_min	fan8_min   power
fan1_fault  fan3_fault	fan5_fault  fan7_fault	in1_fault  power1_input
fan1_input  fan3_input	fan5_input  fan7_input	in2_fault  subsystem
fan1_min    fan3_min	fan5_min    fan7_min	in3_fault  temp1_input
fan2_fault  fan4_fault	fan6_fault  fan8_fault	in4_fault  temp1_max
fan2_input  fan4_input	fan6_input  fan8_input	name	   uevent
[root@tul163p1 ~]#

Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04 07:01:38 -07:00
Zhu, Richard \(NSN - CN/Beijing\)
a8bfeceb0c hwmon: (pmbus) Add tps40422 front-end driver
For TI power management chip TPS40422, READ_TEMPERATURE_2 command is supported on
page 1 of the chip, but the original driver(pmbus.c) only tried to detect this command
on page 0, this will lead to a result that the temperature sensor in page 1 couldn't
be detected. This change is to isolate the tps40422 driver from pmbus.c into a solo
front-end driver.

Signed-off-by: Zhu Laiwen <richard.zhu@nsn.com>
[Guenter Roeck: Dropped unnecessary license text (fixes checkpatch warning)]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04 07:01:38 -07:00
Guenter Roeck
05c77ab240 hwmon: (tmp421) Add support for TMP441 and TMP442
TMP441 and TMP442 are compatible to TMP421 and TMP422.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-08-04 07:01:38 -07:00
Guenter Roeck
a63ee9d83b hwmon: (tmp421) Strengthen detect function
Not all supported chips support the entire I2C address range.
Only accept specific chips at the addresses supported by that chip.
Check for invalid values in conversion rate and status registers.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
2014-08-04 07:01:37 -07:00
Johannes Pointner
ed67f0872b hwmon: (ntc_thermistor) Support B57330V2103 from EPCOS
This patch adds support for the ntc thermistor B57330V2103 from EPCOS.

Signed-off-by: Johannes Pointner <johannes.pointner@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04 07:01:35 -07:00
Frans Klaver
c83959f89f hwmon: (lm75) Add support for TMP112
TMP112 is compatible to LM75.

Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04 07:01:34 -07:00
Heiko Schocher
d17a7dca04 hwmon: Driver for TI TMP103 temperature sensor
Driver for the TI TMP103.

The TI TMP103 is similar to the TMP102.  It differs from the TMP102
by having only 8 bit registers.

Signed-off-by: Heiko Schocher <hs@denx.de>
[linux@roeck-us.net: Select REGMAP_I2C in Kconfig]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04 07:01:33 -07:00
Scott Kanowitz
f4ff415564 hwmon: Add support for Lattice's POWR1220 power manager IC
This patch adds support for Lattice's POWR1220 power manager IC. Read
access to all the ADCs on the chip are supported through the hwmon
sysfs files.

Signed-off-by: Scott Kanowitz <skanowitz@echo360.com>
[Guenter Roeck: Removed some extra ( )]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-04 07:01:33 -07:00
Naveen Krishna Chatradhi
8b6f5e0f19 hwmon: (ntc_thermistor) Use the manufacturer name properly
Murata Manufacturing Co., Ltd is the vendor for
NTC (Negative Temperature coefficient) based Thermistors.
But, the driver extensively uses "NTC" as the vendor name.

This patch corrects the vendor name also updates the
compatibility strings according to the vendor-prefix.txt

Note: Drivers continue to support the previous compatible strings
but further addition of these compatible strings in device tree
is deprecated.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-06-25 07:09:13 -07:00
Tomas Pop
1a539d372e hwmon: add support for Sensirion SHTC1 sensor
Add support for Sensirion SHTC1 and compatible temperature and humidity
sensors.

Signed-off-by: Tomas Pop <tomas.pop@sensirion.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-06-12 08:36:48 -07:00
Linus Torvalds
f456205265 New driver for NCT6683D
New chip support to existing drivers:
 	Add support for STTS2004 and AT30TSE004 to jc42 driver
 	Add support for EMC1402/EMC1412/EMC1422 to emc1403 driver
 
 Other notable changes:
 	Document hwmon kernel API
 	Convert jc42, lm70, lm75, lm77, lm83, lm92, max1619, tmp421,
 	and tmp102 drivers to use new hwmon API functions
 	Replace function macros in lm80, lm92, and jc42 drivers with
 	real code
 	Convert emc1403 driver to use regmap, add support for additional
 	attributes, and add device IDs for EMC1412, EMC1413, and EMC1414
 	Various additional cleanup and minor bug fixes in several drivers
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging into next

Pull hwmon updates from Guenter Roeck:
 "New driver for NCT6683D

  New chip support to existing drivers:
   - add support for STTS2004 and AT30TSE004 to jc42 driver
   - add support for EMC1402/EMC1412/EMC1422 to emc1403 driver

  Other notable changes:
   - document hwmon kernel API
   - convert jc42, lm70, lm75, lm77, lm83, lm92, max1619, tmp421, and
     tmp102 drivers to use new hwmon API functions
   - replace function macros in lm80, lm92, and jc42 drivers with real
     code
   - convert emc1403 driver to use regmap, add support for additional
     attributes, and add device IDs for EMC1412, EMC1413, and EMC1414
   - various additional cleanup and minor bug fixes in several drivers"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (60 commits)
  hwmon: (nct6775) Fix probe unwind paths to properly unregister platform devices
  hwmon: (nct6683) Fix probe unwind paths to properly unregister platform devices
  hwmon: (ultra45_env) Introduce managed version of kzalloc
  hwmon: Driver for NCT6683D
  hwmon: (lm80) Rearrange code to avoid forward declarations
  hwmon: (lm80) Convert fan display function macros into functions
  hwmon: (lm80) Convert voltage display function macros into functions
  hwmon: (lm80) Convert temperature display function macros into functions
  hwmon: (lm80) Normalize all temperature values to 16 bit
  hwmon: (lm80) Simplify TEMP_FROM_REG
  hwmon: (lm83) Convert to use devm_hwmon_device_register_with_groups
  hwmon: (lm83) Rearange code to avoid forward declarations
  hwmon: (lm83) Drop FSF address
  hwmon: (max1619) Convert to use devm_hwmon_device_register_with_groups
  hwmon: (max1619) Drop function macros
  hwmon: (max1619) Rearrange code to avoid forward declarations
  hwmon: (max1619) Drop FSF address
  hwmon: (max1619) Fix critical alarm display
  hwmon: (jc42) Add support for STTS2004 and AT30TSE004
  hwmon: (jc42) Convert function macros into functions
  ...
2014-06-03 11:09:43 -07:00
Jean Delvare
0132514588 hwmon: Document temp[1-*]_min_hyst sysfs attribute
The temp[1-*]_min_hyst sysfs attribute is already implemented by 3
hwmon drivers (adt7x10, lm77 and lm92) but was missing from the
standard interface.

Also add temp[1-*]_lcrit_hyst for consistency, even though no driver
implement that one for the time being.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2014-05-25 17:23:07 +02:00
Guenter Roeck
41082d66bf hwmon: Driver for NCT6683D
Nuvoton NCT6683D is an eSIO with hardware monitoring capabilities.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21 16:02:27 -07:00
Guenter Roeck
175c490c9e hwmon: (jc42) Add support for STTS2004 and AT30TSE004
Also fix links to datasheets for other supported sensors from
ST Microelectronics, and add links to several Atmel datasheets.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21 16:02:25 -07:00
Guenter Roeck
84899d394e hwmon: (emc1403) Make all hyst attributes except for temp1_crit_hyst read-only
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>
2014-05-21 16:02:24 -07:00
Guenter Roeck
57d60b1b7e hwmon: (emc1403) Add driver documentation
With the driver now supporting several chip variants,
it is about time to document what is supported.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21 16:02:23 -07:00
Guenter Roeck
a9622663e0 hwmon: Document hwmon kernel API
The hwmon subsystem has been around for a while. Time to document
its kernel API.

Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-05-21 16:02:23 -07:00
Guenter Roeck
50bf46509f hwmon: (lm77) Do not preserve hysteresis when updating critical temp limit
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>
2014-05-21 16:02:20 -07:00
Linus Torvalds
3e76b749ea Merge branch 'hwmon-for-linus' of 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
2014-04-05 18:45:11 -07:00
Rudolf Marek
574e9bd8fa hwmon: (it87) Add support for IT8623E
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>
2014-04-04 18:01:35 +02:00
Aravind Gopalakrishnan
ec0159503a hwmon: (k10temp) Add support for AMD F16 M30h processor
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>
2014-04-02 22:09:14 -07:00
Guenter Roeck
f76992b00a hwmon: (pmbus/ltc2978) Add support for LTM4676
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>
2014-03-19 18:59:40 -07:00
Guenter Roeck
a41a8927e7 hwmon: (lm95245) Make temp2_crit_hyst read-only
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>
2014-03-03 08:01:06 -08:00
Guenter Roeck
b4c9c1a798 hwmon: Driver for TI ADC128D818
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>
2014-03-03 08:01:04 -08:00
Guenter Roeck
6700ce035f hwmon: Driver for Linear Technologies LTC2945
LTC2945 is a system monitor that measures current, voltage, and power.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-03-03 08:01:03 -08:00
Guenter Roeck
69e1ded651 hwmon: Driver for Linear Technologies LTC4260
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>
2014-03-03 08:01:03 -08:00
Jean Delvare
7c81c60f37 Update Jean Delvare's e-mail address
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2014-01-29 20:40:08 +01:00
Rudolf Marek
c145d5c628 hwmon: (it87) Add support for the ITE IT8603E
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>
2014-01-29 20:40:08 +01:00
Linus Torvalds
16cd9d1c0f Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon fixes and updates from Jean Delvare:
 "All lm90 driver fixes and improvements"

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  Documentation: dt: hwmon: Add OF document for LM90
  hwmon: (lm90) Add power control
  hwmon: (lm90) Add support for TI TMP451
  hwmon: (lm90) Use enums for the indexes of temp8 and temp11
  hwmon: (lm90) Add support to handle IRQ
  hwmon: (lm90) Define status bits
  hwmon: (lm90) Fix max6696 alarm handling
2013-11-15 16:35:10 -08:00
Wei Ni
1daaceb26d hwmon: (lm90) Add support for TI TMP451
TI TMP451 is mostly compatible with ADT7461, except for
local temperature low byte and max conversion rate.
Add support to the LM90 driver.

Signed-off-by: Wei Ni <wni@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2013-11-15 10:40:39 +01:00
Guenter Roeck
3f08d7f49f hwmon: (pmbus/ltc2978): Add support for LTC2978A
Detect LTC2978A chip ID. Treat it as LC2978.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-10-18 09:12:03 -07:00
Guenter Roeck
c24c407e96 hwmon: (pmbus/ltc2978): Add support for LTC2977
LTC2977 is a pin compatible replacement for LTC2978.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-10-18 09:12:03 -07:00
Guenter Roeck
c8ccab7ab5 hwmon: (pmbus/lm25066) Add support for LM25063
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-10-18 09:12:02 -07:00
Linus Torvalds
7b4022fa17 Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon fixes from Jean Delvare.

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (emc6w201) Do not declare enum variable
  hwmon: (w83792d) Update module author
2013-09-07 10:54:19 -07:00
Linus Torvalds
2e515bf096 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina:
 "The usual trivial updates all over the tree -- mostly typo fixes and
  documentation updates"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (52 commits)
  doc: Documentation/cputopology.txt fix typo
  treewide: Convert retrun typos to return
  Fix comment typo for init_cma_reserved_pageblock
  Documentation/trace: Correcting and extending tracepoint documentation
  mm/hotplug: fix a typo in Documentation/memory-hotplug.txt
  power: Documentation: Update s2ram link
  doc: fix a typo in Documentation/00-INDEX
  Documentation/printk-formats.txt: No casts needed for u64/s64
  doc: Fix typo "is is" in Documentations
  treewide: Fix printks with 0x%#
  zram: doc fixes
  Documentation/kmemcheck: update kmemcheck documentation
  doc: documentation/hwspinlock.txt fix typo
  PM / Hibernate: add section for resume options
  doc: filesystems : Fix typo in Documentations/filesystems
  scsi/megaraid fixed several typos in comments
  ppc: init_32: Fix error typo "CONFIG_START_KERNEL"
  treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks
  page_isolation: Fix a comment typo in test_pages_isolated()
  doc: fix a typo about irq affinity
  ...
2013-09-06 09:36:28 -07:00
Shane Huang
f85b520510 hwmon: (w83792d) Update module author
w83792d was written by me in 2004, I'd like to update my first name
into my current one to keep consistent, and delete invalid address.

Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2013-09-06 14:05:42 +02:00
William Markezana
f060c658b8 hwmon: (htu21) Add Measurement Specialties HTU21D support
Signed-off-by: William Markezana <william.markezana@meas-spec.com>
[Guenter Roeck - minor formatting changes]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-08-29 09:09:12 -07:00
Wei Hu
30b146d1cb hwmon: (k10temp) Add support for Fam16h (Kabini)
The temperature reporting interface stays the same, so we just
add the PCI-ID to the list.

Verified on AMD Olive Hill.

Signed-off-by: Wei Hu <wei@aristanetworks.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-08-27 08:28:01 -07:00
Masanari Iida
ac20ad14c3 doc: Fix typo "is is" in Documentations
Fix double words "is is" in Documentations.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Rob Landley <rob@landley.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-08-27 10:50:52 +02:00
Stefan Huber
780d7bd4eb Documentation/hwmon/abituguru-datasheet fix a typo
Corrected the word adventerous to adventurous.

Signed-off-by: Stefan Huber <steffhip@gmail.com>
Signed-off-by: Matthias Schid <aircrach115@gmail.com>
Signed-off-by: Simon Puels <simon.puels@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-08-20 12:41:10 +02:00
Evgeniy Dushistov
60c1f31fc5 hwmon: (ads1015) Add support for ADS1115
This patch adds support for ads1115 device to ads1015 driver.
Based on work of Emiliano Carnati <carnatiatebneuro.com>.
Tested on ARM CPU based board.

Signed-off-by: Evgeniy A. Dushistov <dushistov@mail.ru>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-08-11 22:10:40 -07:00
Linus Torvalds
ddcf6600b1 New driver to support GMT G762/G763 pwm fan controllers
Add support for DS1631, DS1721, and DS1731 to ds1621 driver
 Remove detect function from ds1621 driver as unreliable
 Bug fixes in nct6775, iio_hwmon, and adm1021 drivers
 Remove redundant platform_set_drvdata in various drivers
 Add device tree support to ina2xx driver
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 - new driver to support GMT G762/G763 pwm fan controllers
 - add support for DS1631, DS1721, and DS1731 to ds1621 driver
 - remove detect function from ds1621 driver as unreliable
 - bug fixes in nct6775, iio_hwmon, and adm1021 drivers
 - remove redundant platform_set_drvdata in various drivers
 - add device tree support to ina2xx driver

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (ds1621) Fix temperature rounding operations
  hwmon: (nct6775) Drop unsupported fan alarm attributes for NCT6775
  hwmon: (nct6775) Fix temperature alarm attributes
  Add support for GMT G762/G763 PWM fan controllers
  hwmon: (ina2xx) Add device tree support to pass the shunt resistor
  hwmon: (ds1621) Update documentation
  hwmon: (ds1621) Add DS1731 chip support to ds1621 driver
  hwmon: (iio_hwmon) add alias table
  hwmon: (adm1021) Do not create min sysfs attributes for LM84
  hwmon: (ds1621) Remove detect function
  hwmon: (ds1621) Add ds1631 chip support to ds1621 driver and documentation
  hwmon: (ds1621) Add ds1721 update interval sysfs attribute
  hwmon: (ds1621) Add ds1721 chip support
  hwmon: (w83627ehf) Remove redundant platform_set_drvdata()
  hwmon: (ntc_thermistor) Remove redundant platform_set_drvdata()
  hwmon: (i5k_amb) Remove redundant platform_set_drvdata()
  hwmon: (coretemp) Remove redundant platform_set_drvdata()
  hwmon: (abituguru3) Remove redundant platform_set_drvdata()
2013-07-03 19:56:35 -07:00
Arnaud Ebalard
594fbe713b Add support for GMT G762/G763 PWM fan controllers
GMT G762/763 fan speed PWM controller is connected directly to a fan
and performs closed-loop or open-loop control of the fan speed. Two
modes - PWM or DC - are supported by the chip. Introduced driver
provides various knobs to control the operations of the chip (via
sysfs interface). Specific characteristics of the system can be passed
either using board init code or via DT. Documentation for both the
driver and DT bindings are also provided.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Tested-by: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27 10:31:42 -07:00
Tang Yuantian
31e7ad74f6 hwmon: (ina2xx) Add device tree support to pass the shunt resistor
Adding another way that is device tree to pass the shunt resistor
value to driver except for platform data.

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
[Guenter Roeck: Added missing of.h include]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27 10:31:42 -07:00
Robert Coulson
87438c2c54 hwmon: (ds1621) Update documentation
Replace some written information with tables to improve readability
and to simplify adding newer devices in the future.

Signed-off-by: Robert Coulson <rob.coulson@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27 10:31:40 -07:00
Robert Coulson
260f81ffc1 hwmon: (ds1621) Add DS1731 chip support to ds1621 driver
These changes add DS1731 chip support to the ds1621 driver,
Kconfig, and documentation.

Signed-off-by: Robert Coulson <rob.coulson@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27 10:30:43 -07:00
Robert Coulson
ed7c34e89d hwmon: (ds1621) Remove detect function
Due to a lack of device and vendor identification registers, the
Dallas/Maxim DS16xx devices cannot be uniquely detected, sometimes
resulting in false positives. Therefore, the detect function is
being removed in favor of explicit device instantiation.

Signed-off-by: Robert Coulson <rob.coulson@gmail.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27 10:29:02 -07:00
Robert Coulson
79c1cc1c90 hwmon: (ds1621) Add ds1631 chip support to ds1621 driver and documentation
Add definitions, information, and code for ds1631 chip support
to the ds1621 driver.

Signed-off-by: Robert Coulson <rob.coulson@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27 10:29:02 -07:00
Robert Coulson
3a8fe33155 hwmon: (ds1621) Add ds1721 update interval sysfs attribute
The ds1721 device can be configured for 9..12 bit resolutions;
add a sysfs attribute for userspace to configure this attribute.
The definition, description, details, and usage are shown in the
documentation and were crafted from an LM73 driver patch done by
Chris Verges & Guenter Roeck).

Signed-off-by: Robert Coulson <rob.coulson@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27 10:29:01 -07:00
Robert Coulson
cd6c8a4297 hwmon: (ds1621) Add ds1721 chip support
Update the ds1621 documentation, driver, and Kconfig with
ds1721 chip support.

Signed-off-by: Robert Coulson <rob.coulson@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27 10:28:59 -07:00
Stephen Rothwell
40b313608a Finally eradicate CONFIG_HOTPLUG
Ever since commit 45f035ab9b ("CONFIG_HOTPLUG should be always on"),
it has been basically impossible to build a kernel with CONFIG_HOTPLUG
turned off.  Remove all the remaining references to it.

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-03 14:20:18 -07:00
Jean Delvare
3fbc81e3c0 hwmon: (lm75) Add support for the Dallas/Maxim DS7505
Basically it's the same as the original DS75 but much faster.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
2013-05-04 14:49:36 +02:00
Jean Delvare
0cd2c72d76 hwmon: (lm75) Tune resolution and sample time per chip
Most LM75-compatible chips can either sample much faster or with a
much better resolution than the original LM75 chip. So far the lm75
driver did not let the user take benefit of these improvements. Do it
now.

I decided to almost always configure the chip to use the best
resolution possible, which also means the longest sample time. The
only chips for which I didn't are the DS75, DS1775 and STDS75, because
they are really too slow in 12-bit mode (1.2 to 1.5 second worst case)
so I went for 11-bit mode as a more reasonable tradeoff. This choice is
dictated by the fact that the hwmon subsystem is meant for system
monitoring, it has never been supposed to be ultra-fast, and as a
matter of fact we do cache the sampled values in almost all drivers.

If anyone isn't pleased with these default settings, they can always
introduce a platform data structure or DT support for the lm75. That
being said, it seems nobody ever complained that the driver wouldn't
refresh the value faster than every 1.5 second, and the change made
it faster for all chips even in 12-bit mode, so I don't expect any
complaint.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
2013-05-04 14:49:36 +02:00
Linus Torvalds
151173e8ce Highlights:
- OpenFirmware/DeviceTree support for the Power Supply core: the core now
   automatically populates supplied_from hierarchy from the device tree.
   With these patches chargers and batteries can now lookup each other
   without the board files support shim. Rhyland Klein at NVIDIA did the
   work;
 
 - New ST-Ericsson ABX500 hwmon driver. The driver is heavily using the
   AB85xx core and depends on some recent changes to it, so that is why the
   driver comes through the battery tree. It has an appropriate ack from
   the hwmon maintainer (i.e. Guenter Roeck). Martin Persson at ST-Ericsson
   and Hongbo Zhang at Linaro authored the driver;
 
 - Final bits to sync AB85xx ST-Ericsson changes into mainline. The changes
   touch mfd parts, but these were acked by the appropriate MFD maintainer
   (i.e. Samuel Ortiz). Lee Jones at Linaro did most of the work and lead
   the submission process.
 
 Minor changes, but still worth mentioning:
 
 - Battery temperature reporting fix for Nokia N900 phones;
 - Versatile Express poweroff driver moved into drivers/power/reset/.
 - Tree-wise: use devm_kzalloc() where appropriate;
 - Tree-wise: dev_pm_ops cleanups/fixes.
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Merge tag 'for-v3.10' of git://git.infradead.org/battery-2.6

Pull battery updates from Anton Vorontsov:
 "Highlights:

   - OpenFirmware/DeviceTree support for the Power Supply core: the core
     now automatically populates supplied_from hierarchy from the device
     tree.  With these patches chargers and batteries can now lookup
     each other without the board files support shim.  Rhyland Klein at
     NVIDIA did the work

   - New ST-Ericsson ABX500 hwmon driver.  The driver is heavily using
     the AB85xx core and depends on some recent changes to it, so that
     is why the driver comes through the battery tree.  It has an
     appropriate ack from the hwmon maintainer (i.e.  Guenter Roeck).
     Martin Persson at ST-Ericsson and Hongbo Zhang at Linaro authored
     the driver

   - Final bits to sync AB85xx ST-Ericsson changes into mainline.  The
     changes touch mfd parts, but these were acked by the appropriate
     MFD maintainer (ie Samuel Ortiz).  Lee Jones at Linaro did most of
     the work and lead the submission process.

  Minor changes, but still worth mentioning:

   - Battery temperature reporting fix for Nokia N900 phones
   - Versatile Express poweroff driver moved into drivers/power/reset/
   - Tree-wide: use devm_kzalloc() where appropriate
   - Tree-wide: dev_pm_ops cleanups/fixes"

* tag 'for-v3.10' of git://git.infradead.org/battery-2.6: (112 commits)
  pm2301-charger: Fix suspend/resume
  charger-manager: Use kmemdup instead of kzalloc + memcpy
  power_supply: Populate supplied_from hierarchy from the device tree
  power_supply: Add core support for supplied_from
  power_supply: Define Binding for power-supplies
  rx51_battery: Fix reporting temperature
  hwmon: Add ST-Ericsson ABX500 hwmon driver
  ab8500_bmdata: Export abx500_res_to_temp tables for hwmon
  ab8500_{bmdata,fg}: Add const attributes to some data arrays
  ab8500_bmdata: Eliminate CamelCase warning of some variables
  ab8500_btemp: Make ab8500_btemp_get* interfaces public
  goldfish_battery: Use resource_size()
  lp8788-charger: Use PAGE_SIZE for the sysfs read operation
  max8925_power: Use devm_kzalloc()
  da9030_battery: Use devm_kzalloc()
  da9052-battery: Use devm_kzalloc()
  ds2760_battery: Use devm_kzalloc()
  ds2780_battery: Use devm_kzalloc()
  gpio-charger: Use devm_kzalloc()
  isp1704_charger: Use devm_kzalloc()
  ...
2013-04-30 15:15:24 -07:00
Guenter Roeck
29dd3b64b9 hwmon: (tmp401) Add support for TMP432
TMP432 is similar to TMP431 with a second external temperature sensor.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
2013-04-21 08:56:48 -07:00
Hongbo Zhang
0bbb06ed56 hwmon: Add ST-Ericsson ABX500 hwmon driver
Each of ST-Ericsson X500 chip set series consists of both ABX500 and DBX500
chips. This is ABX500 hwmon driver, where the abx500.c is a common layer for
all ABX500s, and the ab8500.c is specific for AB8500 chip. Under this designed
structure, other chip specific files can be added simply using the same common
layer abx500.c.

Signed-off-by: Hongbo Zhang <hongbo.zhang@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-04-16 18:27:52 -07:00
Masanari Iida
1754e4c5c7 documentation: hwmon: Fix typo in documentation/hwmon
Correct spelling typo in Documentation/hwmon

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-12 18:24:09 -07:00
Guenter Roeck
2c7fd30da2 hwmon: (nct6775) Expand scope of supported chips
NCT6775, NCT6776, and NCT6779 have a number of variants with the same
chip ID but different chip labels. Add text "or compatible" to the
message displayed when the driver is loaded and rephrase the Kconfig
entry to reflect that it also supports compatible chips.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:42 -07:00
Guenter Roeck
e1eb49063b hwmon: Add driver for LM95234
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:42 -07:00
Guenter Roeck
a1fac92b8b hwmon: (tmp401) Add support for TMP431
TMP431 is compatible to TMP401.

Also add support for additional I2C addresses supported by TMP411B
and TMP411C.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
2013-04-07 21:16:42 -07:00
Guenter Roeck
58615a94f6 hwmon: (pmbus/lm25066) Add support for LM25056
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:41 -07:00
Guenter Roeck
a7c69118bd hwmon: (pmbus/lm25066) Report VAUX as vmon
So far the driver reported the voltage on VAUX as "vout2". This was not
entirely appropriate as it is not an output voltage, and complicates
the code. Use the new virtual "VMON" register set and report the voltage
as "vmon" instead.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:41 -07:00
Guenter Roeck
fd9175d2f6 hwmon: (pmbus/ltc2978) Add support for LTC2974 and LTC3883
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:41 -07:00
Guenter Roeck
8c770f3a47 hwmon: (pmbus/ltc2978) Clean up documentation
Some sysfs attributes are only supported on LTC2978 and not on LTC3880.
Update documentation to reflect which attributes are supported for which chips.

Output current attributes supported on LTC3880 were described as providing
input current values. Fix text to reflect that the attributes provide output
current values.

"reset history" attribute descriptions were misleading and seemed to imply
that all history was reset when writing a single attribute. Replace with more
accurate text.

Replace 'internal temperature" with "chip temperature". Temperature limits
not only apply to the chip temperature, but also to external temperatures
on LTC3880, so remove the word "chip" from the attribute description.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:41 -07:00
Guenter Roeck
bbd8decd41 hwmon: (nct6775) Add support for weighted fan control
The NCT677X series support weighted fan control. In this mode, a secondary
temperature source is used in addition to the primary temperature source to
control fan speed. Add support for this feature.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck
cdcaeceb74 hwmon: (nct6775) Add support for automatic fan control
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck
77eb5b3703 hwmon: (nct6775) Add support for pwm, pwm_mode, and pwm_enable
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck
1c65dc365e hwmon: (nct6775) Add support for fan speed attributes
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck
9de2e2e84e hwmon: Driver for Nuvoton NCT6775F, NCT6776F, and NCT6779D
This driver will replace the w83627ehf driver for NCT6775F and NCT6776F,
and provides support for NCT6779D.

This patch provides support for voltage monitor attributes.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:38 -07:00
Lars-Peter Clausen
51c2a4871c hwmon: (adt7410) Add support for the adt7310/adt7320
The adt7310/adt7320 is the SPI version of the adt7410/adt7420. The register map
layout is a bit different, i.e. the register addresses differ between the two
variants, but the bit layouts of the individual registers are identical. So both
chip variants can easily be supported by the same driver. The issue of non
matching register address layouts is solved by a simple look-up table which
translates the I2C addresses to the SPI addresses.

The patch moves the bulk of the adt7410 driver to a common module that will be
shared by the adt7410 and adt7310 drivers. This common module implements the
driver logic and uses a set of virtual functions to perform IO access. The
adt7410 and adt7310 driver modules provide proper implementations of these IO
accessor functions for I2C respective SPI.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:38 -07:00
Jean Delvare
25eba81b7f hwmon: (lm75) Fix tcn75 prefix
The TCN75 has its own prefix for a long time now.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2013-03-18 21:19:49 +01:00
Jean Delvare
ab302bb0b8 hwmon: (adt7410) Document ADT7420 support
The adt7410 driver supports the ADT7420, but its documentation file
makes no mention of that. Add this refrence, and a brief a description
of the differences between the ADT7410 and the ADT7420.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-03-03 21:45:48 -08:00
Guenter Roeck
6d21a41656 hwmon: (pmbus/ltc2978) Update datasheet links
Links to datasheets are no longer valid. Provide links to product information
instead (which provides links to the datasheets and is hopefully more
persistent).

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
2013-03-03 21:45:47 -08:00
Guenter Roeck
e3333e572f hwmon: Update my e-mail address in driver documentation
Most of the hwmon driver documentation still listed my old invalid e-mail
address. Fix it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
2013-03-03 21:45:47 -08:00