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authorSlawomir Stepien <slawomir.stepien@nokia.com>2022-05-25 09:36:52 +0200
committerGuenter Roeck <linux@roeck-us.net>2022-07-13 08:38:19 -0700
commitf07691219cff2521e6eace2cb6d3e3d3c589b376 (patch)
treeb4e17fad97f0dca67816c4a448f0035b7348e69a /Documentation/devicetree/bindings/hwmon
parentdt-bindings: hwmon: Add compatible string for ADT7481 in lm90 (diff)
downloadlinux-dev-f07691219cff2521e6eace2cb6d3e3d3c589b376.tar.xz
linux-dev-f07691219cff2521e6eace2cb6d3e3d3c589b376.zip
dt-bindings: hwmon: Allow specifying channels for lm90
Add binding description for temperature channels. Currently, support for label and temperature-offset-millicelsius is implemented. Signed-off-by: Slawomir Stepien <slawomir.stepien@nokia.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220525073657.573327-3-sst@poczta.fm Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/devicetree/bindings/hwmon')
-rw-r--r--Documentation/devicetree/bindings/hwmon/national,lm90.yaml129
1 files changed, 129 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/hwmon/national,lm90.yaml b/Documentation/devicetree/bindings/hwmon/national,lm90.yaml
index 82fce96498c7..e1719839faf0 100644
--- a/Documentation/devicetree/bindings/hwmon/national,lm90.yaml
+++ b/Documentation/devicetree/bindings/hwmon/national,lm90.yaml
@@ -51,6 +51,12 @@ properties:
"#thermal-sensor-cells":
const: 1
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
vcc-supply:
description: phandle to the regulator that provides the +VCC supply
@@ -62,6 +68,29 @@ required:
- compatible
- reg
+patternProperties:
+ "^channel@([0-2])$":
+ type: object
+ description: Represents channels of the device and their specific configuration.
+
+ properties:
+ reg:
+ description: The channel number. 0 is local channel, 1-2 are remote channels.
+ items:
+ minimum: 0
+ maximum: 2
+
+ label:
+ description: A descriptive name for this channel, like "ambient" or "psu".
+
+ temperature-offset-millicelsius:
+ description: Temperature offset to be added to or subtracted from remote temperature measurements.
+
+ required:
+ - reg
+
+ additionalProperties: false
+
allOf:
- if:
not:
@@ -78,6 +107,77 @@ allOf:
properties:
ti,extended-range-enable: false
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - dallas,max6646
+ - dallas,max6647
+ - dallas,max6649
+ - dallas,max6657
+ - dallas,max6658
+ - dallas,max6659
+ - dallas,max6695
+ - dallas,max6696
+ then:
+ patternProperties:
+ "^channel@([0-2])$":
+ properties:
+ temperature-offset-millicelsius: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - adi,adt7461
+ - adi,adt7461a
+ - adi,adt7481
+ - onnn,nct1008
+ then:
+ patternProperties:
+ "^channel@([0-2])$":
+ properties:
+ temperature-offset-millicelsius:
+ maximum: 127750
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - adi,adm1032
+ - dallas,max6680
+ - dallas,max6681
+ - gmt,g781
+ - national,lm86
+ - national,lm89
+ - national,lm90
+ - national,lm99
+ - nxp,sa56004
+ - winbond,w83l771
+ then:
+ patternProperties:
+ "^channel@([0-2])$":
+ properties:
+ temperature-offset-millicelsius:
+ maximum: 127875
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,tmp451
+ - ti,tmp461
+ then:
+ patternProperties:
+ "^channel@([0-2])$":
+ properties:
+ temperature-offset-millicelsius:
+ maximum: 127937
+
additionalProperties: false
examples:
@@ -96,3 +196,32 @@ examples:
#thermal-sensor-cells = <1>;
};
};
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@4c {
+ compatible = "adi,adt7481";
+ reg = <0x4c>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0x0>;
+ label = "local";
+ };
+
+ channel@1 {
+ reg = <0x1>;
+ label = "front";
+ temperature-offset-millicelsius = <4000>;
+ };
+
+ channel@2 {
+ reg = <0x2>;
+ label = "back";
+ temperature-offset-millicelsius = <750>;
+ };
+ };
+ };