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Date:   Tue, 25 Aug 2020 15:00:58 +0300
From:   Roger Quadros <rogerq@...com>
To:     <balbi@...nel.org>
CC:     <pawell@...ence.com>, <kurahul@...ence.com>, <nsekhar@...com>,
        <vigneshr@...com>, <robh+dt@...nel.org>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, Roger Quadros <rogerq@...com>
Subject: [PATCH 2/3] dt-bindings: usb: cdns,usb3: Add cdns,phyrst-a-enable property

Controller version 0x0002450D has USB2 PHY RX sensitivity issues
that needs to be worked around by enabling phyrst-a-enable bit
in PHYRST_CFG register.

There is no way to distinguish between the controller version
before the device controller is started so we need to add this
DT property.

Signed-off-by: Roger Quadros <rogerq@...com>
---
 Documentation/devicetree/bindings/usb/cdns,usb3.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
index 7bc0263accee..e670adc955e1 100644
--- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
+++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
@@ -58,6 +58,10 @@ properties:
       buffers expressed in KB
     $ref: /schemas/types.yaml#/definitions/uint32
 
+  cdns,phyrst-a-enable:
+    description: Enable resetting of PHY if Rx fail is detected
+    type: boolean
+
 required:
   - compatible
   - reg
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