From:   Yaqin Pan <akingchen@vivo.com>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Rob Herring <robh+dt@kernel.org>,
        Felipe Balbi <balbi@kernel.org>, linux-usb@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     kernel@vivo.com, Yaqin Pan <akingchen@vivo.com>
Subject: [PATCH v3 2/2] dt-bindings: usb: document snps,sprs-ctrl-trans-quirk property in dwc3
Date:   Thu, 30 Dec 2021 21:58:31 +0800
Message-Id: <20211230135832.23005-3-akingchen@vivo.com>
In-Reply-To: <20211230135832.23005-1-akingchen@vivo.com>
References: <20211230135832.23005-1-akingchen@vivo.com>
Precedence: bulk

Add snps,sprs-ctrl-trans-quirk property for dwc3 controller

Signed-off-by: Yaqin Pan <akingchen@vivo.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..7a127f0cb530 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,sprs-ctrl-trans-quirk:
+    description:
+      When set, change the way host controller schedules transations for a Control transfer.
+      Avoid failing to enumerate some devices due to usb compatibility issues.
+    type: boolean
+
   snps,is-utmi-l1-suspend:
     description:
       True when DWC3 asserts output signal utmi_l1_suspend_n, false when
-- 
2.17.1