linux-kernel - Re: [PATCH v5 1/2] dt-bindings: usb: qcom,dwc3: Convert USB DWC3 bindings

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Date:   Wed, 8 Apr 2020 10:12:27 +0530
From:   "Sandeep Maheswaram (Temp)" <sanm@...eaurora.org>
To:     Stephen Boyd <swboyd@...omium.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Doug Anderson <dianders@...omium.org>,
        Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Kaehlcke <mka@...omium.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Manu Gautam <mgautam@...eaurora.org>
Subject: Re: [PATCH v5 1/2] dt-bindings: usb: qcom,dwc3: Convert USB DWC3
 bindings


On 4/8/2020 9:14 AM, Stephen Boyd wrote:
> Quoting Sandeep Maheswaram (2020-03-26 00:06:07)
>> diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
>> new file mode 100644
>> index 0000000..0f69475
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
>> @@ -0,0 +1,158 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +
> [...]
>> +    maxItems: 1
>> +
>> +  interrupts:
>> +    items:
>> +      - description: The interrupt that is asserted
>> +          when a wakeup event is received on USB2 bus.
>> +      - description: The interrupt that is asserted
>> +          when a wakeup event is received on USB3 bus.
>> +      - description: Wakeup event on DM line.
>> +      - description: Wakeup event on DP line.
> I can see that it was optional before but that still doesn't make sense
> to me. The glue hardware from qcom always has interrupts so I'd expect
> it to be required in the binding.
Will add in next version.

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