Documentation: dt: hwmon: Add OF document for LM90

Add OF document for LM90 in Documentation/devicetree/.

[JD: Add this new file to the LM90 MAINTAINERS entry.]

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

diff --git a/Documentation/devicetree/bindings/hwmon/lm90.txt b/Documentation/devicetree/bindings/hwmon/lm90.txt
new file mode 100644 (file)
index 0000000..e863248
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/lm90.txt
@@ -0,0 +1,44 @@
+* LM90 series thermometer.
+
+Required node properties:
+- compatible: manufacturer and chip name, one of
+               "adi,adm1032"
+               "adi,adt7461"
+               "adi,adt7461a"
+               "gmt,g781"
+               "national,lm90"
+               "national,lm86"
+               "national,lm89"
+               "national,lm99"
+               "dallas,max6646"
+               "dallas,max6647"
+               "dallas,max6649"
+               "dallas,max6657"
+               "dallas,max6658"
+               "dallas,max6659"
+               "dallas,max6680"
+               "dallas,max6681"
+               "dallas,max6695"
+               "dallas,max6696"
+               "onnn,nct1008"
+               "winbond,w83l771"
+               "nxp,sa56004"
+
+- reg: I2C bus address of the device
+
+- vcc-supply: vcc regulator for the supply voltage.
+
+Optional properties:
+- interrupts: Contains a single interrupt specifier which describes the
+              LM90 "-ALERT" pin output.
+              See interrupt-controller/interrupts.txt for the format.
+
+Example LM90 node:
+
+temp-sensor {
+       compatible = "onnn,nct1008";
+       reg = <0x4c>;
+       vcc-supply = <&palmas_ldo6_reg>;
+       interrupt-parent = <&gpio>;
+       interrupts = <TEGRA_GPIO(O, 4) IRQ_TYPE_LEVEL_LOW>;
+}

diff --git a/MAINTAINERS b/MAINTAINERS
index ffcaf975bed7e399197e0fd93c761d9ff7c8570d..0da69578cceec66f63216b2aae03460f8619668c 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5175,6 +5175,7 @@ M:        Jean Delvare <khali@linux-fr.org>
 L:     lm-sensors@lm-sensors.org
 S:     Maintained
 F:     Documentation/hwmon/lm90
+F:     Documentation/devicetree/bindings/hwmon/lm90.txt
 F:     drivers/hwmon/lm90.c
 
 LM95234 HARDWARE MONITOR DRIVER