[PATCH v3 2/5] dt-bindings: interrupt-controller: loongson,liointc: Fix dtbs_check warning for reg-names

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As we know, the Loongson-2K0500 is a single-core CPU, and the
core1-related register (isr1) does not exist, and we need a separate
declaration.

This fixes dtbs_check warning:

DTC_CHK arch/loongarch/boot/dts/loongson-2k0500-ref.dtb
arch/loongarch/boot/dts/loongson-2k0500-ref.dtb: interrupt-controller@1fe11400: reg-names: ['main', 'isr0'] is too short
        From schema: Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
arch/loongarch/boot/dts/loongson-2k0500-ref.dtb: interrupt-controller@1fe11400: Unevaluated properties are not allowed ('reg-names' was unexpected)
        From schema: Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
arch/loongarch/boot/dts/loongson-2k0500-ref.dtb: interrupt-controller@1fe11400: reg: [[0, 534844416, 0, 64], [0, 534843456, 0, 8]] is too short
        From schema: Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
arch/loongarch/boot/dts/loongson-2k0500-ref.dtb: interrupt-controller@1fe11440: reg-names: ['main', 'isr0'] is too short
        From schema: Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml

Signed-off-by: Binbin Zhou <zhoubinbin@xxxxxxxxxxx>
---
 .../loongson,liointc.yaml                     | 22 ++++++++++++++-----
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
index 0d9511b8a792..7393d7dfbe82 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
@@ -11,8 +11,13 @@ maintainers:
 
 description: |
   This interrupt controller is found in the Loongson-3 family of chips and
-  Loongson-2K1000 chip, as the primary package interrupt controller which
+  Loongson-2K series chips, as the primary package interrupt controller which
   can route local I/O interrupt to interrupt lines of cores.
+  Be aware of the following points.
+  1.The Loongson-2K0500 is a single core CPU, the isr1 register could not be defined;
+  2.The Loongson-2K0500/2K1000 has 64 device interrupt sources as inputs, so we
+    need to define two nodes in dts{i} to describe the "0-31" and "32-61" interrupt
+    sources respectively.
 
 allOf:
   - $ref: /schemas/interrupt-controller.yaml#
@@ -29,10 +34,14 @@ properties:
     maxItems: 3
 
   reg-names:
-    items:
-      - const: main
-      - const: isr0
-      - const: isr1
+    oneOf:
+      - items:
+          - const: main
+          - const: isr0
+      - items:
+          - const: main
+          - const: isr0
+          - const: isr1
 
   interrupt-controller: true
 
@@ -94,7 +103,8 @@ if:
 then:
   properties:
     reg:
-      minItems: 3
+      minItems: 2
+      maxItems: 3
 
   required:
     - reg-names
-- 
2.39.3




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