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

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

Posted by Rob Herring (Arm) 1 month, 3 weeks ago

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

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 Documentation/devicetree/bindings/usb/generic-ehci.yaml | 2 ++
 Documentation/devicetree/bindings/usb/generic-ohci.yaml | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/generic-ehci.yaml b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
index 4e84bead0232..601f097c09a6 100644
--- a/Documentation/devicetree/bindings/usb/generic-ehci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
@@ -93,6 +93,8 @@ properties:
     minItems: 1
     maxItems: 2
 
+  dma-coherent: true
+
   interrupts:
     maxItems: 1
 
diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
index 3ee1586fc8b9..961cbf85eeb5 100644
--- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
@@ -64,6 +64,8 @@ properties:
   reg:
     maxItems: 1
 
+  dma-coherent: true
+
   interrupts:
     maxItems: 1
 
-- 
2.51.0

Re: [PATCH] dt-bindings: usb: ehci/ohci: Allow "dma-coherent"

Posted by Krzysztof Kozlowski 1 month, 3 weeks ago

On Mon, Dec 15, 2025 at 03:25:14PM -0600, Rob Herring (Arm) wrote:
> EHCI and OHCI controllers can be DMA coherent on some platforms, so
> allow the "dma-coherent" property.
> 
> Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
> ---
>  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 <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof