Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Wed, 21 Jun 2023 09:38:04 +0200
From:   Johan Hovold <johan@kernel.org>
To:     Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Cc:     Krishna Kurapati PSSNV <quic_kriskura@quicinc.com>,
        Bjorn Andersson <andersson@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Andy Gross <agross@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Felipe Balbi <balbi@kernel.org>,
        "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-arm-msm@vger.kernel.org" <linux-arm-msm@vger.kernel.org>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        "quic_pkondeti@quicinc.com" <quic_pkondeti@quicinc.com>,
        "quic_ppratap@quicinc.com" <quic_ppratap@quicinc.com>,
        "quic_wcheng@quicinc.com" <quic_wcheng@quicinc.com>,
        "quic_jackp@quicinc.com" <quic_jackp@quicinc.com>,
        "quic_harshq@quicinc.com" <quic_harshq@quicinc.com>,
        "ahalaney@redhat.com" <ahalaney@redhat.com>
Subject: Re: [PATCH v8 6/9] usb: dwc3: qcom: Add multiport controller support
 for qcom wrapper
Message-ID: <ZJKo3LyIMD1xr2ru@hovoldconsulting.com>
References: <82553597-ce0e-48f4-44d4-9eeaaf4cb1c4@quicinc.com>
 <ZIBsDQJtgDZRe7MG@hovoldconsulting.com>
 <99cded6f-6a71-ffce-8479-c7c0726bfb8e@quicinc.com>
 <ZIGihYS5EacISEFm@hovoldconsulting.com>
 <279fff8b-57e2-cfc8-cd6d-c69d00e71799@quicinc.com>
 <20230608175705.2ajrteztdeqdrkzg@synopsys.com>
 <ZILgW5CwfSlBxzNB@hovoldconsulting.com>
 <20230609181602.ljxdchgzl7kzk73n@synopsys.com>
 <acd46bb7-0708-d095-c3c6-53653f9e47d6@quicinc.com>
 <20230615210800.lvmekpvxjiszkrh4@synopsys.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20230615210800.lvmekpvxjiszkrh4@synopsys.com>
Precedence: bulk

On Thu, Jun 15, 2023 at 09:08:01PM +0000, Thinh Nguyen wrote:
> On Thu, Jun 15, 2023, Krishna Kurapati PSSNV wrote:

> >  How about we add compatible data indicating the number of usb2/usb3 ports.
> > That way we needn't parse the DT or read xhci registers atleast as a
> > temporary solution to unblock other patches. Once this series is merged, we
> > can get back to fixing the port count calculation. Does it seem fine ?
> > 
> 
> Temporary solution should not involve DT as it's not easily reverted or
> changed. Just include xhci-ext-caps.h and use the inline function. I
> think Johan is fine with that. If not, he can provide more feedback.

Yes, I already suggested that as a quick way forward since it is already
used this way by the xhci debug driver.

Johan