[PATCH 1/2] dt-bindings: thermal: loongson,ls2k-thermal: Add compatible for Loongson-2K0300

Add a new compatible string `loongson,ls2k0300-thermal` for the thermal
sensor found on the Loongson-2K0300 SoC.

The hardware differs from the existing SoCs in its register layout: it
requires two register regions (one for the thermal sensor control and
another for the CPU ID).

Update the binding to describe this new requirement.

Signed-off-by: Binbin Zhou <[email protected]>
---
 .../thermal/loongson,ls2k-thermal.yaml        | 68 ++++++++++++++-----
 1 file changed, 50 insertions(+), 18 deletions(-)

diff --git a/Documentation/devicetree/bindings/thermal/loongson,ls2k-thermal.yaml b/Documentation/devicetree/bindings/thermal/loongson,ls2k-thermal.yaml
index 79e691b08341..b5cbfd201105 100644
--- a/Documentation/devicetree/bindings/thermal/loongson,ls2k-thermal.yaml
+++ b/Documentation/devicetree/bindings/thermal/loongson,ls2k-thermal.yaml
@@ -10,13 +10,11 @@ maintainers:
   - zhanghongchen <[email protected]>
   - Yinbo Zhu <[email protected]>
 
-allOf:
-  - $ref: /schemas/thermal/thermal-sensor.yaml#
-
 properties:
   compatible:
     oneOf:
       - enum:
+          - loongson,ls2k0300-thermal
           - loongson,ls2k1000-thermal
           - loongson,ls2k2000-thermal
       - items:
@@ -39,23 +37,46 @@ required:
   - reg
   - interrupts
 
-if:
-  properties:
-    compatible:
-      contains:
-        enum:
-          - loongson,ls2k2000-thermal
+allOf:
+  - $ref: /schemas/thermal/thermal-sensor.yaml#
 
-then:
-  properties:
-    reg:
-      minItems: 2
-      maxItems: 2
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - loongson,ls2k0300-thermal
+    then:
+      properties:
+        reg:
+          items:
+            - description: Thermal base register region
+            - description: CPU ID register region
 
-else:
-  properties:
-    reg:
-      maxItems: 1
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - loongson,ls2k1000-thermal
+    then:
+      properties:
+        reg:
+          items:
+            - description: Thermal base register region
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - loongson,ls2k2000-thermal
+    then:
+      properties:
+        reg:
+          items:
+            - description: Thermal base register region
+            - description: Thermal data output register region
 
 unevaluatedProperties: false
 
@@ -69,3 +90,14 @@ examples:
         interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
         #thermal-sensor-cells = <1>;
     };
+
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    thermal-sensor@16001500 {
+       compatible = "loongson,ls2k0300-thermal";
+       reg = <0x16001500 0x30>,
+             <0x16003ff0 0x8>;
+       interrupt-parent = <&liointc1>;
+       interrupts = <20 IRQ_TYPE_LEVEL_HIGH>;
+       #thermal-sensor-cells = <1>;
+    };
-- 
2.52.0