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hwmon: (lm92) Update documentation

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Update datasheet references. Replace misleading 'force parameter needed'
with 'must be instantiated explicitly'. Explain the reason for the missing
auto-detection. Mention all supported chips in Kconfig.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2024-07-28 15:52:25 -07:00
parent c21eced115
commit 05aa8cbeab
2 changed files with 14 additions and 14 deletions
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26
Documentation/hwmon/lm92.rst
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@ -3,29 +3,29 @@ Kernel driver lm92
Supported chips:
* National Semiconductor LM92
* National Semiconductor / Texas Instruments LM92
Prefix: 'lm92'
Addresses scanned: I2C 0x48 - 0x4b
Datasheet: http://www.national.com/pf/LM/LM92.html
Datasheet: https://www.ti.com/lit/gpn/LM92
* National Semiconductor LM76
* National Semiconductor / Texas Instruments LM76
Prefix: 'lm92'
Addresses scanned: none, force parameter needed
Addresses scanned: none, must be instantiated explicitly
Datasheet: http://www.national.com/pf/LM/LM76.html
Datasheet: https://www.ti.com/lit/gpn/LM76
* Maxim MAX6633/MAX6634/MAX6635
* Maxim /Analog Devices MAX6633/MAX6634/MAX6635
Prefix: 'max6635'
Addresses scanned: none, force parameter needed
Addresses scanned: none, must be instantiated explicitly
Datasheet: http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3074
Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/max6633-max6635.pdf
Authors:
@ -36,13 +36,13 @@ Authors:
Description
-----------
This driver implements support for the National Semiconductor LM92
temperature sensor.
This driver implements support for the National Semiconductor / Texas
Instruments LM92 temperature sensor.
Each LM92 temperature sensor supports a single temperature sensor. There are
alarms for high, low, and critical thresholds. There's also an hysteresis to
control the thresholds for resetting alarms.
Support was added later for the LM76 and Maxim MAX6633/MAX6634/MAX6635,
which are mostly compatible. They have not all been tested, so you
may need to use the force parameter.
The driver also supports LM76 and Maxim MAX6633/MAX6634/MAX6635, which are
mostly compatible but do not have a vendor ID register and therefore must be
instantiated explicitly.

2
drivers/hwmon/Kconfig
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@ -1514,7 +1514,7 @@ config SENSORS_LM92
select REGMAP_I2C
help
If you say yes here you get support for National Semiconductor LM92
and Maxim MAX6635 sensor chips.
and LM76 as well as Maxim MAX6633/6634/6635 sensor chips.
This driver can also be built as a module. If so, the module
will be called lm92.