linux-kernel - Re: [PATCH v10 2/6] dt-bindings: display/msm: dp-controller: document QCS8300 compatible

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Message-ID: <tvdbil5fhgntj6wx235ihum6dxy673ekdlpmv2qath5r2o7f3l@jynol3ns7uxb>
Date: Tue, 2 Sep 2025 12:48:56 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Yongxing Mou <yongxing.mou@....qualcomm.com>
Cc: Krzysztof Kozlowski <krzk@...nel.org>,
        Rob Clark <robin.clark@....qualcomm.com>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Kuogee Hsieh <quic_khsieh@...cinc.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v10 2/6] dt-bindings: display/msm: dp-controller:
 document QCS8300 compatible

On Tue, Sep 02, 2025 at 03:42:55PM +0800, Yongxing Mou wrote:
> 
> 
> On 9/2/2025 2:41 PM, Krzysztof Kozlowski wrote:
> > On 02/09/2025 08:38, Krzysztof Kozlowski wrote:
> > > On Mon, Sep 01, 2025 at 05:57:30PM +0800, Yongxing Mou wrote:
> > > > +  - if:
> > > > +      properties:
> > > > +        compatible:
> > > > +          contains:
> > > > +            enum:
> > > > +              # QCS8300 only has one DP controller that supports 4
> > > > +              # streams MST.
> > > > +              - qcom,qcs8300-dp
> > > > +    then:
> > > > +      properties:
> > > > +        reg:
> > > > +          minItems: 9
> > > > +          maxItems: 9
> > > > +        clocks:
> > > > +          minItems: 8
> > > > +          maxItems: 8
> > > 
> > > Clocks have only five items, reg has 5. At least in my next from few
> > > days ago.
> > > 
> > > Nothing explains any patchset dependencies, so this makes reviewing more
> > > difficult than it should be.
> > OK, I found the dependency in cover letter (I was looking at wrong cover
> > letter), but the dependency does not have relevant clock changes, so
> > this is still wrong.
> > 
> Hi, https://lore.kernel.org/all/20250829-dp_mst_bindings-v7-7-2b268a43917b@oss.qualcomm.com/
> dp-controller.yaml descriptions for regs and clks have been added. Compare
> with SA8775P, QCS8300 don't have DP1 controller which supports 2 streams
> MST, so its minItems and maxItems clocks is 8. > I suggest to slow down with
> this patchset. It's v10 already with
> > simultaneous other changes and two (!!!) dependencies.
> > Sorry for that, will wait until the dependencies become stable before
> updating the patch.> I don't know how I am supposed to review this.

Please fix you email client. This is garbled. It mixes your text and
Krzysztof's on the same line.

> > 
> > Best regards,
> > Krzysztof
> 

-- 
With best wishes
Dmitry