linux-kernel - Re: [PATCH v8 1/9] dt-bindings: usb: qcom,dwc3: Add bindings for SC8280 Multiport

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Date:   Wed, 17 May 2023 16:40:11 +0530
From:   Krishna Kurapati PSSNV <quic_kriskura@...cinc.com>
To:     Johan Hovold <johan@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC:     Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        "Andy Gross" <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        "Konrad Dybcio" <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Felipe Balbi <balbi@...nel.org>, <linux-usb@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <quic_pkondeti@...cinc.com>,
        <quic_ppratap@...cinc.com>, <quic_wcheng@...cinc.com>,
        <quic_jackp@...cinc.com>, <quic_harshq@...cinc.com>,
        <ahalaney@...hat.com>
Subject: Re: [PATCH v8 1/9] dt-bindings: usb: qcom,dwc3: Add bindings for
 SC8280 Multiport



On 5/16/2023 4:29 PM, Johan Hovold wrote:
> On Sun, May 14, 2023 at 11:19:09AM +0530, Krishna Kurapati wrote:
>> Add the compatible string for SC8280 Multiport USB controller from
>> Qualcomm.
>>
>> There are 4 power event irq interrupts supported by this controller
>> (one for each port of multiport). Added all the 4 as non-optional
>> interrupts for SC8280XP-MP
>>
>> Signed-off-by: Krishna Kurapati <quic_kriskura@...cinc.com>
>> ---
>>   .../devicetree/bindings/usb/qcom,dwc3.yaml    | 22 +++++++++++++++++++
>>   1 file changed, 22 insertions(+)
>   
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            enum:
>> +              - qcom,sc8280xp-dwc3-mp
>> +    then:
>> +      properties:
>> +        interrupts:
>> +          maxItems: 7
>> +        interrupt-names:
>> +          items:
>> +            - const: dp_hs_phy_irq
>> +            - const: dm_hs_phy_irq
>> +            - const: ss_phy_irq
> 
> I assume that these are only for the first port, and that you need to
> define these interrupts also for ports 2-4.
> 

Hi Johan,

  I wanted to add them when wakeup-source is enabled but since you 
mentioned that these must be added now and driver support can be added 
later, I will make a patch separately for this in v9.

Hi Krzysztof,

  Can I use the following notation for the new interrupts ?

dp_hs_port2_irq
dm_hs_port2_irq
dp_hs_port3_irq
dm_hs_port3_irq
dp_hs_port4_irq
dm_hs_port4_irq


That way the interrupt names for first port will be same as ones for 
single port.

Wanted to clarify this before I make a formal patch.

Regards,
Krishna,