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authorFlorian Fainelli <f.fainelli@gmail.com>2017-01-21 11:20:10 -0800
committerGuenter Roeck <linux@roeck-us.net>2017-01-21 12:26:38 -0800
commit68f0c8c923951eef2cde1d9ab6bc598aceecfc27 (patch)
tree575f9639f27e101a989a862c2a4bfd6364627374 /Documentation
parente8295146503720db914f2b82569de31bacbf6387 (diff)
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hwmon: (lm70) Add support for TI TMP122/124
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 <f.fainelli@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/hwmon/lm70.txt1
-rw-r--r--Documentation/hwmon/lm708
2 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/hwmon/lm70.txt b/Documentation/devicetree/bindings/hwmon/lm70.txt
index e7fd921aa4f1..ea417a0d32af 100644
--- a/Documentation/devicetree/bindings/hwmon/lm70.txt
+++ b/Documentation/devicetree/bindings/hwmon/lm70.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible: one of
"ti,lm70"
"ti,tmp121"
+ "ti,tmp122"
"ti,lm71"
"ti,lm74"
diff --git a/Documentation/hwmon/lm70 b/Documentation/hwmon/lm70
index 1bb2db440671..c3a1f2ea017d 100644
--- a/Documentation/hwmon/lm70
+++ b/Documentation/hwmon/lm70
@@ -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).