The QEMU devicetree uses a different order for SMMUv3 interrupt names,
and there isn't a good reason for enforcing a specific order. Since all
interrupt lines are optional, operating systems should not expect a
fixed interrupt array layout; they should instead match each interrupt
to its name individually. Besides, as a result of commit e4783856a2e8
("dt-bindings: iommu: arm,smmu-v3: make PRI IRQ optional"), "cmdq-sync"
and "priq" are already permutable. Relax the interrupt-names array
entirely by allowing any permutation, incidentally making the schema
more readable.
Note that dt-validate won't allow duplicate names here so we don't need
to specify maxItems or add additional checks, it's quite neat.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>
---
.../devicetree/bindings/iommu/arm,smmu-v3.yaml | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml
index c57a53d87e4e..75fcf4cb52d9 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml
@@ -39,16 +39,11 @@ properties:
any others.
- minItems: 1
items:
- - enum:
- - eventq # Event Queue not empty
- - gerror # Global Error activated
- - const: gerror
- - enum:
- - cmdq-sync # CMD_SYNC complete
- - priq # PRI Queue not empty
- - enum:
- - cmdq-sync
- - priq
+ enum:
+ - eventq # Event Queue not empty
+ - gerror # Global Error activated
+ - cmdq-sync # CMD_SYNC complete
+ - priq # PRI Queue not empty
'#iommu-cells':
const: 1
--
2.37.3
