linux-kernel - [PATCH v2 1/2] dt-bindings: usb: generic-ehci: document ignore-oc flag

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Date:   Tue, 23 Feb 2021 17:16:43 +0100
From:   Álvaro Fernández Rojas 
        <noltari@...il.com>
To:     f.fainelli@...il.com, jonas.gorski@...il.com,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Tony Prisk <linux@...sktech.co.nz>, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     Álvaro Fernández Rojas 
        <noltari@...il.com>
Subject: [PATCH v2 1/2] dt-bindings: usb: generic-ehci: document ignore-oc flag

Over-current reporting isn't supported on some platforms such as bcm63xx.
These devices will incorrectly report over-current if this flag isn't properly
activated.

Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>
---
 v2: change flag name and improve documentation as suggested by Alan Stern.

 Documentation/devicetree/bindings/usb/generic-ehci.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/generic-ehci.yaml b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
index cf83f2d9afac..8089dc956ba3 100644
--- a/Documentation/devicetree/bindings/usb/generic-ehci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
@@ -122,6 +122,12 @@ properties:
     description:
       Set this flag to force EHCI reset after resume.
 
+  spurious-oc:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      Set this flag to indicate that the hardware sometimes turns on
+      the OC bit when an over-current isn't actually present.
+
   companion:
     $ref: /schemas/types.yaml#/definitions/phandle
     description:
-- 
2.20.1