diff options
| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-04-17 06:46:29 -0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-04-17 10:37:23 -0700 |
| commit | 7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 (patch) | |
| tree | 9db30159bd32bec125c7d49e80a79bb7c4da0c8e /Documentation/hwmon/thmc50 | |
| parent | b04f2f7d387b3160883c2a1f5e2285483a791e82 (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>
Diffstat (limited to 'Documentation/hwmon/thmc50')
| -rw-r--r-- | Documentation/hwmon/thmc50 | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/Documentation/hwmon/thmc50 b/Documentation/hwmon/thmc50 deleted file mode 100644 index 6dba1b59b20c..000000000000 --- a/Documentation/hwmon/thmc50 +++ /dev/null @@ -1,90 +0,0 @@ -Kernel driver thmc50 -===================== - -Supported chips: - - * Analog Devices ADM1022 - - Prefix: 'adm1022' - - Addresses scanned: I2C 0x2c - 0x2e - - Datasheet: http://www.analog.com/en/prod/0,2877,ADM1022,00.html - - * Texas Instruments THMC50 - - Prefix: 'thmc50' - - Addresses scanned: I2C 0x2c - 0x2e - - Datasheet: http://www.ti.com/ - - -Author: Krzysztof Helt <krzysztof.h1@wp.pl> - -This driver was derived from the 2.4 kernel thmc50.c source file. - -Credits: - - thmc50.c (2.4 kernel): - - - Frodo Looijaard <frodol@dds.nl> - - Philip Edelbrock <phil@netroedge.com> - -Module Parameters ------------------ - -* adm1022_temp3: short array - List of adapter,address pairs to force chips into ADM1022 mode with - second remote temperature. This does not work for original THMC50 chips. - -Description ------------ - -The THMC50 implements: an internal temperature sensor, support for an -external diode-type temperature sensor (compatible w/ the diode sensor inside -many processors), and a controllable fan/analog_out DAC. For the temperature -sensors, limits can be set through the appropriate Overtemperature Shutdown -register and Hysteresis register. Each value can be set and read to half-degree -accuracy. An alarm is issued (usually to a connected LM78) when the -temperature gets higher then the Overtemperature Shutdown value; it stays on -until the temperature falls below the Hysteresis value. All temperatures are in -degrees Celsius, and are guaranteed within a range of -55 to +125 degrees. - -The THMC50 only updates its values each 1.5 seconds; reading it more often -will do no harm, but will return 'old' values. - -The THMC50 is usually used in combination with LM78-like chips, to measure -the temperature of the processor(s). - -The ADM1022 works the same as THMC50 but it is faster (5 Hz instead of -1 Hz for THMC50). It can be also put in a new mode to handle additional -remote temperature sensor. The driver use the mode set by BIOS by default. - -In case the BIOS is broken and the mode is set incorrectly, you can force -the mode with additional remote temperature with adm1022_temp3 parameter. -A typical symptom of wrong setting is a fan forced to full speed. - -Driver Features ---------------- - -The driver provides up to three temperatures: - -temp1 - - internal -temp2 - - remote -temp3 - - 2nd remote only for ADM1022 - -pwm1 - - fan speed (0 = stop, 255 = full) -pwm1_mode - - always 0 (DC mode) - -The value of 0 for pwm1 also forces FAN_OFF signal from the chip, -so it stops fans even if the value 0 into the ANALOG_OUT register does not. - -The driver was tested on Compaq AP550 with two ADM1022 chips (one works -in the temp3 mode), five temperature readings and two fans. - |