linux-kernel - [PATCH v2 0/5] dt-bindings: msm/dp: add support for pixel clock to driver another stream

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Message-Id: <20250530-dp_mst_bindings-v2-0-f925464d32a8@oss.qualcomm.com>
Date: Fri, 30 May 2025 10:47:23 -0700
From: Jessica Zhang <jessica.zhang@....qualcomm.com>
To: Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <lumag@...nel.org>, 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>,
        Abel Vesa <abel.vesa@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Mahadevan <quic_mahap@...cinc.com>,
        Krishna Manikandan <quic_mkrishn@...cinc.com>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Danila Tikhonov <danila@...xyga.com>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        Yongxing Mou <quic_yongmou@...cinc.com>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>
Subject: [PATCH v2 0/5] dt-bindings: msm/dp: add support for pixel clock to
 driver another stream

On some MSM chipsets, the display port controller is capable of supporting
two streams. To drive the second stream, the pixel clock for the
corresponding stream needs to be enabled. In order to add the bindings for
the pixel clock for the second stream, fixup the documentation of some of
the bindings to clarify exactly which stream they correspond to, then add
the new bindings and make corresponding changes to the relevant device
trees.

---
Changes in v2:
- Rebased on top of next-20250523
- Dropped merged maintainer patch
- Remove assigned-clock-parents from sm7150-mdss.yaml
- Added a patch to make the corresponding dts change to add pixel 1
  stream
- Squashed pixel 0 and pixel 1 stream binding patches (Krzysztof)
- Drop assigned-clock-parents bindings for dp-controller (Krzysztof)
- Updated dp-controller.yaml to include all chipsets that support stream
  1 pixel clock (Krzysztof)
- Added missing minItems and if statement (Krzysztof)

---
Abhinav Kumar (4):
      dt-bindings: Fixup x1e80100 to add DP MST support
      dt-bindings: clock: Add SC7280 DISPCC DP pixel 1 clock binding
      dt-bindings: display/msm: drop assigned-clock-parents for dp controller
      dt-bindings: display/msm: add stream 1 pixel clock binding

Jessica Zhang (1):
      arm64: dts: qcom: Add pixel 1 stream for displayport

 .../bindings/display/msm/dp-controller.yaml        | 45 +++++++++++---
 .../bindings/display/msm/qcom,sa8775p-mdss.yaml    | 10 +--
 .../bindings/display/msm/qcom,sar2130p-mdss.yaml   | 11 ++--
 .../bindings/display/msm/qcom,sc7180-mdss.yaml     |  1 -
 .../bindings/display/msm/qcom,sc7280-mdss.yaml     | 11 ++--
 .../bindings/display/msm/qcom,sm7150-mdss.yaml     |  2 -
 .../bindings/display/msm/qcom,x1e80100-mdss.yaml   | 18 +++---
 arch/arm64/boot/dts/qcom/sa8775p.dtsi              | 26 +++++---
 arch/arm64/boot/dts/qcom/sc8180x.dtsi              | 20 ++++--
 arch/arm64/boot/dts/qcom/sc8280xp.dtsi             | 72 +++++++++++++++-------
 arch/arm64/boot/dts/qcom/sm8150.dtsi               | 10 ++-
 arch/arm64/boot/dts/qcom/sm8350.dtsi               | 10 ++-
 arch/arm64/boot/dts/qcom/sm8450.dtsi               | 10 ++-
 arch/arm64/boot/dts/qcom/sm8650.dtsi               | 10 ++-
 arch/arm64/boot/dts/qcom/x1e80100.dtsi             | 31 +++++++---
 include/dt-bindings/clock/qcom,dispcc-sc7280.h     |  2 +
 16 files changed, 197 insertions(+), 92 deletions(-)
---
base-commit: daf70030586cf0279a57b58a94c32cfe901df23d
change-id: 20241202-dp_mst_bindings-7536ffc9ae2f

Best regards,
-- 
Jessica Zhang <jessica.zhang@....qualcomm.com>