linux-kernel - [PATCH 4/4] dt-bindings: usb: usb-xhci: add USB offload support

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Message-Id: <20210119101044.1637023-5-howardyen@google.com>
Date:   Tue, 19 Jan 2021 18:10:44 +0800
From:   Howard Yen <howardyen@...gle.com>
To:     gregkh@...uxfoundation.org, robh+dt@...nel.org,
        mathias.nyman@...el.com
Cc:     linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Howard Yen <howardyen@...gle.com>
Subject: [PATCH 4/4] dt-bindings: usb: usb-xhci: add USB offload support

Document USB offload support for usb-xhci.

For example:

&usbdrd_dwc3 {
	...
	/* support usb offloading, 0: disabled, 1: audio */
	offload = <1>;
	...
};

Signed-off-by: Howard Yen <howardyen@...gle.com>
---
 Documentation/devicetree/bindings/usb/usb-xhci.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
index b120dd6612a2..aab1fd499f15 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -46,6 +46,7 @@ Optional properties:
   - quirk-broken-port-ped: set if the controller has broken port disable mechanism
   - imod-interval-ns: default interrupt moderation interval is 5000ns
   - phys : see usb-hcd.yaml in the current directory
+  - offload: supporting USB offload feature, 0: disabled, 1: audio
 
 additionally the properties from usb-hcd.yaml (in the current directory) are
 supported.
-- 
2.30.0.284.gd98b1dd5eaa7-goog