Add binding description for the per temperature channel configuration
like labels and n-factor.
Signed-off-by: Krzysztof Adamski <krzysztof.adamski@xxxxxxxxx>
---
.../devicetree/bindings/hwmon/tmp421.yaml | 66 +++++++++++++++++++
1 file changed, 66 insertions(+)
diff --git a/Documentation/devicetree/bindings/hwmon/tmp421.yaml b/Documentation/devicetree/bindings/hwmon/tmp421.yaml
index 53940e146ee6..56085fdf1b57 100644
--- a/Documentation/devicetree/bindings/hwmon/tmp421.yaml
+++ b/Documentation/devicetree/bindings/hwmon/tmp421.yaml
@@ -24,12 +24,49 @@ properties:
reg:
maxItems: 1
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
required:
- compatible
- reg
additionalProperties: false
+patternProperties:
+ "^input@([0-4])$":
+ type: object
+ description: |
+ Represents channels of the device and their specific configuration.
+
+ properties:
+ reg:
+ description: |
+ The channel number. 0 is local channel, 1-4 are remote channels
+ items:
+ minimum: 0
+ maximum: 4
+
+ label:
+ description: |
+ A descriptive name for this channel, like "ambient" or "psu".
+
+ n-factor:
+ description: |
+ The value (two's complement) to be programmed in the channel specific N correction register.
+ For remote channels only.
+ items:
+ minimum: 0
+ maximum: 1
+
+ required:
+ - reg
+
+ additionalProperties: false
+
examples:
- |
i2c {
@@ -41,3 +78,32 @@ examples:
reg = <0x4c>;
};
};
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@4c {
+ compatible = "ti,tmp422";
+ reg = <0x4c>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ input@0 {
+ reg = <0x0>;
+ n-factor = <0x1>;
+ label = "local";
+ };
+
+ input@1 {
+ reg = <0x1>;
+ n-factor = <0x0>;
+ label = "somelabel";
+ };
+
+ input@2 {
+ reg = <0x2>;
+ status = "disabled";
+ };
+ };
+ };
--
2.31.1
