linux-kernel - [PATCH 2/2] dt-bindings: usb: document snps,dis_split

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Message-Id: <20211215130325.19017-3-akingchen@vivo.com>
Date:   Wed, 15 Dec 2021 21:03:24 +0800
From:   Yaqin Pan <akingchen@...o.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Felipe Balbi <balbi@...nel.org>, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     kernel@...o.com, Yaqin Pan <akingchen@...o.com>
Subject: [PATCH 2/2] dt-bindings: usb: document snps,dis_split_quirk property in dwc3

Add snps,dis_split_quirk property for dwc3 controller

Signed-off-by: Yaqin Pan <akingchen@...o.com>
---
 Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
index 41416fbd92aa..e9615ca8f447 100644
--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -226,6 +226,12 @@ properties:
       avoid -EPROTO errors with usbhid on some devices (Hikey 970).
     type: boolean
 
+  snps,dis_split_quirk:
+    description:
+      When set, change the way host controller schedules transations for a Control transfer.
+      Needed to avoid emurate some devices fail.
+    type: boolean
+
   snps,is-utmi-l1-suspend:
     description:
       True when DWC3 asserts output signal utmi_l1_suspend_n, false when
-- 
2.17.1