DMA operations for XUSB device controller are coherent for Tegra194 and
so update the device-tree binding to add this property.
Fixes: 394b012a422d ("dt-bindings: usb: tegra-xudc: Add Tegra194 XUSB controller support")
Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>
---
.../devicetree/bindings/usb/nvidia,tegra-xudc.yaml | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.yaml b/Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.yaml
index f6cb19efd98b..4ef88d38fa3a 100644
--- a/Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.yaml
+++ b/Documentation/devicetree/bindings/usb/nvidia,tegra-xudc.yaml
@@ -112,6 +112,8 @@ properties:
hvdd-usb-supply:
description: USB controller power supply. Must supply 3.3 V.
+ dma-coherent: true
+
required:
- compatible
- reg
@@ -164,6 +166,16 @@ allOf:
clock-names:
maxItems: 4
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra194-xudc
+ then:
+ required:
+ - dma-coherent
+
additionalProperties: false
examples:
--
2.25.1
