From: Rob Herring <robh@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Felipe Balbi <balbi@kernel.org>
Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] dt-bindings: usb: snps,dwc3: Add missing 'dma-coherent' property
Date: Wed, 25 May 2022 20:41:18 -0500 [thread overview]
Message-ID: <20220526014118.2872057-1-robh@kernel.org> (raw)
The 'unevaluatedProperties' schema checks is not fully working and doesn't
catch some cases where there's a $ref to another schema. A fix is pending,
but results in new warnings in examples.
Some DWC3 implementations such as Xilinx are hooked up coherently and need
to set the 'dma-coherent' property.
Signed-off-by: Rob Herring <robh@kernel.org>
---
Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
index f4471f8bdbef..d41265ba8ce2 100644
--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -68,6 +68,8 @@ properties:
- enum: [bus_early, ref, suspend]
- true
+ dma-coherent: true
+
iommus:
maxItems: 1
--
2.34.1
next reply other threads:[~2022-05-26 1:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-26 1:41 Rob Herring [this message]
2022-05-31 15:18 ` [PATCH] dt-bindings: usb: snps,dwc3: Add missing 'dma-coherent' property Rob Herring
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