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hwmon: (lm70) Add support for TI TMP122/124

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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 <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
This commit is contained in:
Florian Fainelli 2017-01-21 11:20:10 -08:00 • committed by Guenter Roeck
commit 68f0c8c923
3 changed files with 15 additions and 3 deletions
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8
Documentation/hwmon/lm70
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@ -6,6 +6,8 @@ Supported chips:
Datasheet: http://www.national.com/pf/LM/LM70.html
* Texas Instruments TMP121/TMP123
Information: http://focus.ti.com/docs/prod/folders/print/tmp121.html
* Texas Instruments TMP122/TMP124
Information: http://www.ti.com/product/tmp122
* National Semiconductor LM71
Datasheet: http://www.ti.com/product/LM71
* National Semiconductor LM74
@ -35,8 +37,10 @@ As a real (in-tree) example of this "SPI protocol driver" interfacing
with a "SPI master controller driver", see drivers/spi/spi_lm70llp.c
and its associated documentation.
The LM74 and TMP121/TMP123 are very similar; main difference is 13-bit
temperature data (0.0625 degrees celsius resolution).
The LM74 and TMP121/TMP122/TMP123/TMP124 are very similar; main difference is
13-bit temperature data (0.0625 degrees celsius resolution).
The TMP122/TMP124 also feature configurable temperature thresholds.
The LM71 is also very similar; main difference is 14-bit temperature
data (0.03125 degrees celsius resolution).