[PATCH 3/8] dt-bindings: hwmon: Allow specifying channels for lm90

[Slawomir Stepien <sst@poczta.fm>]

From: Slawomir Stepien <slawomir.stepien@nokia.com>

Add binding description for temperature channels. Currently, support for
label and offset is implemented.

Signed-off-by: Slawomir Stepien <slawomir.stepien@nokia.com>
---
 .../bindings/hwmon/national,lm90.yaml         | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/Documentation/devicetree/bindings/hwmon/national,lm90.yaml b/Documentation/devicetree/bindings/hwmon/national,lm90.yaml
index 066c02541fcf..9a5aa78d4db1 100644
--- a/Documentation/devicetree/bindings/hwmon/national,lm90.yaml
+++ b/Documentation/devicetree/bindings/hwmon/national,lm90.yaml
@@ -62,6 +62,37 @@ required:
 
 additionalProperties: false
 
+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".
+
+      offset:
+        description: |
+          The value (millidegree Celsius) to be programmed in the channel specific offset register
+          (if supported by device).
+          For remote channels only.
+        $ref: /schemas/types.yaml#/definitions/int32
+        default: 0
+
+    required:
+      - reg
+
+    additionalProperties: false
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/irq.h>
@@ -76,5 +107,13 @@ examples:
             vcc-supply = <&palmas_ldo6_reg>;
             interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
             #thermal-sensor-cells = <1>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            channel@0 {
+                reg = <0x0>;
+                label = "internal";
+                offset = <1000>;
+            };
         };
     };
-- 
2.36.1