From: Jon Hunter <jonathanh@nvidia.com>
Date: Thu, 19 Jan 2023 10:42:04 +0000 (+0000)
Subject: dt-bindings: usb: tegra-xudc: Add dma-coherent for Tegra194
X-Git-Tag: v6.3-rc1~110^2~116
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=173bee52a0f15572e4df8e2d2b4d53c34f0bee9c;p=linux-block.git

dt-bindings: usb: tegra-xudc: Add dma-coherent for Tegra194

DMA operations for XUSB device controller are coherent for Tegra194 and
so update the device-tree binding to add this property.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230119104208.28726-2-jonathanh@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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: