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authorMauro Carvalho Chehab2019-04-17 06:46:29 -0300
committerGuenter Roeck2019-04-17 10:37:23 -0700
commit7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 (patch)
tree9db30159bd32bec125c7d49e80a79bb7c4da0c8e /Documentation/hwmon/w83627hf
parentb04f2f7d387b3160883c2a1f5e2285483a791e82 (diff)
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>
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-Kernel driver w83627hf
-======================
-
-Supported chips:
- * Winbond W83627HF (ISA accesses ONLY)
- Prefix: 'w83627hf'
- Addresses scanned: ISA address retrieved from Super I/O registers
- * Winbond W83627THF
- Prefix: 'w83627thf'
- Addresses scanned: ISA address retrieved from Super I/O registers
- * Winbond W83697HF
- Prefix: 'w83697hf'
- Addresses scanned: ISA address retrieved from Super I/O registers
- * Winbond W83637HF
- Prefix: 'w83637hf'
- Addresses scanned: ISA address retrieved from Super I/O registers
- * Winbond W83687THF
- Prefix: 'w83687thf'
- Addresses scanned: ISA address retrieved from Super I/O registers
- Datasheet: Provided by Winbond on request(http://www.winbond.com/hq/enu)
-
-Authors:
- Frodo Looijaard <frodol@dds.nl>,
- Philip Edelbrock <phil@netroedge.com>,
- Mark Studebaker <mdsxyz123@yahoo.com>,
- Bernhard C. Schrenk <clemy@clemy.org>
-
-Module Parameters
------------------
-
-* force_i2c: int
- Initialize the I2C address of the sensors
-* init: int
- (default is 1)
- Use 'init=0' to bypass initializing the chip.
- Try this if your computer crashes when you load the module.
-
-Description
------------
-
-This driver implements support for ISA accesses *only* for
-the Winbond W83627HF, W83627THF, W83697HF and W83637HF Super I/O chips.
-We will refer to them collectively as Winbond chips.
-
-This driver supports ISA accesses, which should be more reliable
-than i2c accesses. Also, for Tyan boards which contain both a
-Super I/O chip and a second i2c-only Winbond chip (often a W83782D),
-using this driver will avoid i2c address conflicts and complex
-initialization that were required in the w83781d driver.
-
-If you really want i2c accesses for these Super I/O chips,
-use the w83781d driver. However this is not the preferred method
-now that this ISA driver has been developed.
-
-The `w83627_HF_` uses pins 110-106 as VID0-VID4. The `w83627_THF_` uses the
-same pins as GPIO[0:4]. Technically, the `w83627_THF_` does not support a
-VID reading. However the two chips have the identical 128 pin package. So,
-it is possible or even likely for a w83627thf to have the VID signals routed
-to these pins despite their not being labeled for that purpose. Therefore,
-the w83627thf driver interprets these as VID. If the VID on your board
-doesn't work, first see doc/vid in the lm_sensors package[1]. If that still
-doesn't help, you may just ignore the bogus VID reading with no harm done.
-
-For further information on this driver see the w83781d driver documentation.
-
-[1] http://www.lm-sensors.org/browser/lm-sensors/trunk/doc/vid
-
-Forcing the address
--------------------
-
-The driver used to have a module parameter named force_addr, which could
-be used to force the base I/O address of the hardware monitoring block.
-This was meant as a workaround for mainboards with a broken BIOS. This
-module parameter is gone for technical reasons. If you need this feature,
-you can obtain the same result by using the isaset tool (part of
-lm-sensors) before loading the driver:
-
-# Enter the Super I/O config space::
-
- isaset -y -f 0x2e 0x87
- isaset -y -f 0x2e 0x87
-
-# Select the hwmon logical device::
-
- isaset -y 0x2e 0x2f 0x07 0x0b
-
-# Set the base I/O address (to 0x290 in this example)::
-
- isaset -y 0x2e 0x2f 0x60 0x02
- isaset -y 0x2e 0x2f 0x61 0x90
-
-# Exit the Super-I/O config space::
-
- isaset -y -f 0x2e 0xaa
-
-The above sequence assumes a Super-I/O config space at 0x2e/0x2f, but
-0x4e/0x4f is also possible.
-
-Voltage pin mapping
--------------------
-
-Here is a summary of the voltage pin mapping for the W83627THF. This
-can be useful to convert data provided by board manufacturers into
-working libsensors configuration statements:
-
-
-- W83627THF
-
-
- ======== =============== =============== ===============
- Pin Name Register Sysfs attribute
- ======== =============== =============== ===============
- 100 CPUVCORE 20h in0
- 99 VIN0 21h in1
- 98 VIN1 22h in2
- 97 VIN2 24h in4
- 114 AVCC 23h in3
- 61 5VSB 50h (bank 5) in7
- 74 VBAT 51h (bank 5) in8
- ======== =============== =============== ===============
-
-For other supported devices, you'll have to take the hard path and
-look up the information in the datasheet yourself (and then add it
-to this document please.)