[PATCH v5 08/17] dt-bindings: riscv: Require block-size for Zicbom, Zicbop, and Zicboz

[Guodong Xu]

Zicbom, Zicbop, and Zicboz have no default cache block size, so a
devicetree that declares one must also provide the matching
riscv,cbom/cbop/cboz-block-size property. Make it required so a
missing block-size property can be caught by dtbs_check.

Suggested-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Signed-off-by: Guodong Xu <docular.xu@xxxxxxxxx>
---
v5: New patch.
---
 .../devicetree/bindings/riscv/extensions.yaml      | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
index 5ffc40d599c02..f4dd34d446c02 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -1142,6 +1142,32 @@ allOf:
           not:
             contains:
               const: zilsd
+  # All three Zicbo* extensions require their block size property as there's no
+  # default.
+  - if:
+      properties:
+        riscv,isa-extensions:
+          contains:
+            const: zicbom
+    then:
+      required:
+        - riscv,cbom-block-size
+  - if:
+      properties:
+        riscv,isa-extensions:
+          contains:
+            const: zicbop
+    then:
+      required:
+        - riscv,cbop-block-size
+  - if:
+      properties:
+        riscv,isa-extensions:
+          contains:
+            const: zicboz
+    then:
+      required:
+        - riscv,cboz-block-size
 
 additionalProperties: true
 ...

-- 
2.43.0