From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Date: Fri, 18 Feb 2022 16:15:20 +0000 (+0100)
Subject: dt-bindings: usb: dwc2: add iommus
X-Git-Tag: v5.18-rc1~145^2~2^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b5f9a0487594bae57a6b60d11ee2e274648ec05;p=thirdparty%2Flinux.git

dt-bindings: usb: dwc2: add iommus

The DWC2 node might use IOMMU (e.g. Altera Stratix10), so add "iommus"
property.  This fixes warnings like:

  arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dt.yaml:
    usb@ffb40000: 'iommus' does not match any of the regexes: 'pinctrl-[0-9]+'

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
---

diff --git a/Documentation/devicetree/bindings/usb/dwc2.yaml b/Documentation/devicetree/bindings/usb/dwc2.yaml
index 048e352c531a4..1ba96706bbcbc 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.yaml
+++ b/Documentation/devicetree/bindings/usb/dwc2.yaml
@@ -68,6 +68,9 @@ properties:
     items:
       - const: otg
 
+  iommus:
+    maxItems: 1
+
   resets:
     items:
       - description: common reset