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[v3,03/11] dt-bindings: iommu: apple,dart: Add power-domains property

Message ID 20211124073419.181799-4-marcan@marcan.st
State New
Headers show
Series Apple SoC PMGR device power states driver | expand

Commit Message

Hector Martin Nov. 24, 2021, 7:34 a.m. UTC
This will bind to the PMGR pwrstate nodes that control power/clock
gating to SoC blocks. The DART driver doesn't do runtime-pm yet, so
initially this will just keep the domain on permanently.

Signed-off-by: Hector Martin <marcan@marcan.st>
---
 Documentation/devicetree/bindings/iommu/apple,dart.yaml | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/iommu/apple,dart.yaml b/Documentation/devicetree/bindings/iommu/apple,dart.yaml
index 94aa9e9afa59..82ad669feef7 100644
--- a/Documentation/devicetree/bindings/iommu/apple,dart.yaml
+++ b/Documentation/devicetree/bindings/iommu/apple,dart.yaml
@@ -41,6 +41,9 @@  properties:
       Has to be one. The single cell describes the stream id emitted by
       a master to the IOMMU.
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg