hwmon: Remove obsolete adm1021 and max6642 drivers

ADM1021, MAX6642, and compatible chips are supported by the lm90 driver.
Remove the obsolete stand-alone drivers to reduce maintenance overhead.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

3 files changed, 0 insertions, 182 deletions

diff --git a/Documentation/hwmon/adm1021.rst b/Documentation/hwmon/adm1021.rst
deleted file mode 100644
index 116fb2019956..000000000000
--- a/Documentation/hwmon/adm1021.rst
+++ /dev/null
@@ -1,153 +0,0 @@
-Kernel driver adm1021
-=====================
-
-Supported chips:
-
-  * Analog Devices ADM1021
-
-    Prefix: 'adm1021'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Analog Devices website
-
-  * Analog Devices ADM1021A/ADM1023
-
-    Prefix: 'adm1023'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Analog Devices website
-
-  * Genesys Logic GL523SM
-
-    Prefix: 'gl523sm'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet:
-
-  * Maxim MAX1617
-
-    Prefix: 'max1617'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Maxim website
-
-  * Maxim MAX1617A
-
-    Prefix: 'max1617a'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Maxim website
-
-  * National Semiconductor LM84
-
-    Prefix: 'lm84'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the National Semiconductor website
-
-  * Philips NE1617
-
-    Prefix: 'max1617' (probably detected as a max1617)
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Philips website
-
-  * Philips NE1617A
-
-    Prefix: 'max1617' (probably detected as a max1617)
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Philips website
-
-  * TI THMC10
-
-    Prefix: 'thmc10'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the TI website
-
-  * Onsemi MC1066
-
-    Prefix: 'mc1066'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Onsemi website
-
-
-Authors:
-	- Frodo Looijaard <frodol@dds.nl>,
-	- Philip Edelbrock <phil@netroedge.com>
-
-Module Parameters
------------------
-
-* read_only: int
-  Don't set any values, read only mode
-
-
-Description
------------
-
-The chips supported by this driver are very similar. The Maxim MAX1617 is
-the oldest; it has the problem that it is not very well detectable. The
-MAX1617A solves that. The ADM1021 is a straight clone of the MAX1617A.
-Ditto for the THMC10. From here on, we will refer to all these chips as
-ADM1021-clones.
-
-The ADM1021 and MAX1617A reports a die code, which is a sort of revision
-code. This can help us pinpoint problems; it is not very useful
-otherwise.
-
-ADM1021-clones implement two temperature sensors. One of them is internal,
-and measures the temperature of the chip itself; the other is external and
-is realised in the form of a transistor-like device. A special alarm
-indicates whether the remote sensor is connected.
-
-Each sensor has its own low and high limits. When they are crossed, the
-corresponding alarm is set and remains on as long as the temperature stays
-out of range. Temperatures are measured in degrees Celsius. Measurements
-are possible between -65 and +127 degrees, with a resolution of one degree.
-
-If an alarm triggers, it will remain triggered until the hardware register
-is read at least once. This means that the cause for the alarm may already
-have disappeared!
-
-This driver only updates its values each 1.5 seconds; reading it more often
-will do no harm, but will return 'old' values. It is possible to make
-ADM1021-clones do faster measurements, but there is really no good reason
-for that.
-
-
-Netburst-based Xeon support
----------------------------
-
-Some Xeon processors based on the Netburst (early Pentium 4, from 2001 to
-2003) microarchitecture had real MAX1617, ADM1021, or compatible chips
-within them, with two temperature sensors. Other Xeon processors of this
-era (with 400 MHz FSB) had chips with only one temperature sensor.
-
-If you have such an old Xeon, and you get two valid temperatures when
-loading the adm1021 module, then things are good.
-
-If nothing happens when loading the adm1021 module, and you are certain
-that your specific Xeon processor model includes compatible sensors, you
-will have to explicitly instantiate the sensor chips from user-space. See
-method 4 in Documentation/i2c/instantiating-devices.rst. Possible slave
-addresses are 0x18, 0x1a, 0x29, 0x2b, 0x4c, or 0x4e. It is likely that
-only temp2 will be correct and temp1 will have to be ignored.
-
-Previous generations of the Xeon processor (based on Pentium II/III)
-didn't have these sensors. Next generations of Xeon processors (533 MHz
-FSB and faster) lost them, until the Core-based generation which
-introduced integrated digital thermal sensors. These are supported by
-the coretemp driver.
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index 1241b7442233..46a1a9ed2620 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -25,7 +25,6 @@ Hardware Monitoring Kernel Drivers
    acpi_power_meter
    ad7314
    adc128d818
-   adm1021
    adm1025
    adm1026
    adm1031
@@ -154,7 +153,6 @@ Hardware Monitoring Kernel Drivers
    max34440
    max6620
    max6639
-   max6642
    max6650
    max6697
    max8688
diff --git a/Documentation/hwmon/max6642.rst b/Documentation/hwmon/max6642.rst
deleted file mode 100644
index 7e5b7d4f9492..000000000000
--- a/Documentation/hwmon/max6642.rst
+++ /dev/null
@@ -1,27 +0,0 @@
-Kernel driver max6642
-=====================
-
-Supported chips:
-
-  * Maxim MAX6642
-
-    Prefix: 'max6642'
-
-    Addresses scanned: I2C 0x48-0x4f
-
-    Datasheet: Publicly available at the Maxim website
-
-	       http://datasheets.maxim-ic.com/en/ds/MAX6642.pdf
-
-Authors:
-
-	Per Dalen <per.dalen@appeartv.com>
-
-Description
------------
-
-The MAX6642 is a digital temperature sensor. It senses its own temperature as
-well as the temperature on one external diode.
-
-All temperature values are given in degrees Celsius. Resolution
-is 0.25 degree for the local temperature and for the remote temperature.