linux-kernel - Re: [PATCH v9 2/3] arm64: dts: qcom: sm8750: Add USB support for SM8750 MTP platform

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Message-ID: <vmtm6wy2ldvobgl2o7cqdtknyfg4fup2pqpddkftnhzs5tgqrq@vbo4j2gmr4px>
Date: Wed, 29 Oct 2025 11:34:36 -0500
From: Bjorn Andersson <andersson@...nel.org>
To: Krishna Kurapati PSSNV <krishna.kurapati@....qualcomm.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Wesley Cheng <wesley.cheng@....qualcomm.com>, Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH v9 2/3] arm64: dts: qcom: sm8750: Add USB support for
 SM8750 MTP platform

On Wed, Oct 29, 2025 at 09:20:48PM +0530, Krishna Kurapati PSSNV wrote:
> 
> 
> On 10/29/2025 2:45 AM, Dmitry Baryshkov wrote:
> > On Fri, Oct 24, 2025 at 08:45:20PM +0530, Krishna Kurapati wrote:
> > > From: Wesley Cheng <wesley.cheng@....qualcomm.com>
> > > 
> > > Enable USB support on SM8750 MTP variants.  The current definition will
> > > start the USB controller in peripheral mode by default until
> > > dependencies are added, such as USB role detection.
> > 
> > Which dependencies?
> > 
> 
> Dependencies like pmic-glink and adding remote endpoints for otg support.
> Till they are added, we can enable peripheral mode.
> 

But this is 8750, Jishnu got qcom,sm8750-pmic-glink landed in the
binding 9 months ago, so why are we spending time discussing this?

Why not just add the whole shebang at once?

Regards,
Bjorn

> Regards,
> Krishna,
> 
> > > 
> > > Signed-off-by: Wesley Cheng <wesley.cheng@....qualcomm.com>
> > > [Konrad: Provided diff to flatten USB node on MTP]
> > > Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> > > Signed-off-by: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
> > > ---
> > >   arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 22 ++++++++++++++++++++++
> > >   1 file changed, 22 insertions(+)
> > > 
> > 
>