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dt-bindings: usb: ehci/ohci: Allow "dma-coherent"

PATCH In review Rob Herring (Arm) 2 participants 2 messages Dec 15, 2025 – Dec 17, 2025

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Rob Herring (Arm)

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#0 lore raw

PATCH 1/1 dt-bindings: usb: ehci/ohci: Allow "dma-coherent"

EHCI and OHCI controllers can be DMA coherent on some platforms, so allow the "dma-coherent" property.

Signed-off-by Rob Herring (Arm) <[email protected]>
---
 Documentation/devicetree/bindings/usb/generic-ehci.yaml | 2 ++
 Documentation/devicetree/bindings/usb/generic-ohci.yaml | 2 ++
 2 files changed, 4 insertions(+)
Documentation/devicetree/bindings/usb/generic-ehci.yaml +2 -0
index 4e84bead0232..601f097c09a6 100644
@@ -93,6 +93,8 @@ properties:
     minItems: 1
     maxItems: 2
 
+  dma-coherent: true
+
   interrupts:
     maxItems: 1
Documentation/devicetree/bindings/usb/generic-ohci.yaml +2 -0
index 3ee1586fc8b9..961cbf85eeb5 100644
@@ -64,6 +64,8 @@ properties:
   reg:
     maxItems: 1
 
+  dma-coherent: true
+
   interrupts:
     maxItems: 1
Signature · 1 line
2.51.0
Reviewed-by on v1 1/1
#1 lore raw
Quoted 8 lines · Rob Herring (Arm)

EHCI and OHCI controllers can be DMA coherent on some platforms, so allow the "dma-coherent" property.

Signed-off-by Rob Herring (Arm) <[email protected]>
---
 Documentation/devicetree/bindings/usb/generic-ehci.yaml | 2 ++
 Documentation/devicetree/bindings/usb/generic-ohci.yaml | 2 ++
 2 files changed, 4 insertions(+)
Reviewed-by Krzysztof Kozlowski <[email protected]>

Best regards,
Krzysztof