linux-kernel - Re: [PATCH 0/4] Add MST support for qcs8300 platform

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Message-ID: <ylotx2i5wvkitezd3ilqg67g2fj2emjigvnxhsdfl5nmoscsbf@kybjxritnslb>
Date: Wed, 19 Feb 2025 12:58:51 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Yongxing Mou <quic_yongmou@...cinc.com>
Cc: Krzysztof Kozlowski <krzk@...nel.org>, Rob Clark <robdclark@...il.com>, 
	Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
	Marijn Suijten <marijn.suijten@...ainline.org>, David Airlie <airlied@...il.com>, 
	Simona Vetter <simona@...ll.ch>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.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 0/4] Add MST support for qcs8300 platform

On Wed, Feb 19, 2025 at 06:02:27PM +0800, Yongxing Mou wrote:
> 
> 
> On 2025/2/12 17:06, Krzysztof Kozlowski wrote:
> > On 12/02/2025 08:12, Yongxing Mou wrote:
> > > This series of patches introduces how to enable MST functionality on
> > > the qcs8300 platform. The qcs8300 platform uses dpu_8_4 hardware, which
> > > is the same as the sa8775p, but it only has one DPU. So it only has one
> > > DP0 controller, supporting 4-stream MST. This patch only enables
> > > 2-stream MST, using intf0 and intf3. The first and second patches are
> > > modifications to the correspond dt-bindings, third patch is the dp
> > > controller driver after not reuse sm8650, fourth patch is the qcs8300
> > > dts modification which add the clk support for stream 1.
> > > 
> > > Signed-off-by: Yongxing Mou <quic_yongmou@...cinc.com>
> > > ---
> > > This patch depends on following series:
> > > https://lore.kernel.org/all/20250120-mdssdt_qcs8300-v4-0-1687e7842125@quicinc.com/
> > > https://lore.kernel.org/all/20250114-dts_qcs8300-v3-0-d114cc5e4af9@quicinc.com/
> > > https://lore.kernel.org/all/20241202-dp_mst_bindings-v1-0-9a9a43b0624a@quicinc.com
> > > https://lore.kernel.org/all/20241205-dp_mst-v1-0-f8618d42a99a@quicinc.com/
> > 
> > Buggy patch cannot be the dependency. You need to fix the original patch
> > instead. You are not supposed to wait till knowingly incorrect patches
> > get merged so you can send a fix. You must respond to that patch
> > stopping its merging process.
> > 
> > Best regards,
> > Krzysztof
> Thanks for the reminder. I hadn't noticed that before. We will wait for our
> dependencies to be ready before sending the new patchset.

Hmm, no. Work with Abhinav and send the bindings (including all 4
stream clocks) and platform enablement. Then MST support can come up
together with the rest of MST patchset.

-- 
With best wishes
Dmitry