From: "Rob Herring (Arm)" <robh@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] dt-bindings: usb: ehci/ohci: Allow "dma-coherent"
Date: Mon, 15 Dec 2025 15:25:14 -0600 [thread overview]
Message-ID: <20251215212515.3318052-1-robh@kernel.org> (raw)
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
next reply other threads:[~2025-12-15 21:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-15 21:25 Rob Herring (Arm) [this message]
2025-12-17 8:41 ` [PATCH] dt-bindings: usb: ehci/ohci: Allow "dma-coherent" Krzysztof Kozlowski
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