On some MSM chipsets, the display port controller is capable of supporting up to 4 streams.
To drive these additional streams, the pixel clocks for the corresponding stream needs to be enabled. Fixup the documentation of some of the bindings to clarify exactly which stream they correspond to, then add the new bindings and device tree changes. separately. Note: SC7280 changes depend on clock driver changes and will be posted --- Changes in v4: - Picked up series from Jessica by the mutual agreement - Corrected Rob's tags (Krzysztof) - Split X1E80100 DP patch (Dmitry) - Removed SC7280 changes - Enabled the MST clock on SDM845 - Link to v3: https://lore.kernel.org/r/20250717-dp_mst_bindings-v3-0-72ce08285...@oss.qualcomm.com Changes in v3: - Fixed dtschema errors (Rob Herring) - Documented all pixel stream clocks (Dmitry) - Ordered compatibility list alphabetically (Dmitry) - Dropped assigned-clocks too (Dmitry) - Link to v2: https://lore.kernel.org/r/20250530-dp_mst_bindings-v2-0-f925464d3...@oss.qualcomm.com Changes in v2: - Rebased on top of next-20250523 - Dropped merged maintainer patch - 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) - Link to v1: https://lore.kernel.org/r/20241202-dp_mst_bindings-v1-0-9a9a43b06...@quicinc.com --- Abhinav Kumar (4): dt-bindings: display/msm: qcom,x1e80100-mdss: correct DP addresses dt-bindings: display/msm: dp-controller: add X1E80100 dt-bindings: display/msm: drop assigned-clock-parents for dp controller dt-bindings: display/msm: add stream pixel clock bindings for MST Dmitry Baryshkov (1): dt-bindings: display/msm: dp-controller: allow eDP for SA8775P Jessica Zhang (1): arm64: dts: qcom: Add MST pixel streams for displayport .../bindings/display/msm/dp-controller.yaml | 107 ++++++++++++++++++--- .../bindings/display/msm/qcom,sa8775p-mdss.yaml | 20 +++- .../bindings/display/msm/qcom,sar2130p-mdss.yaml | 10 +- .../bindings/display/msm/qcom,sm8750-mdss.yaml | 10 +- .../bindings/display/msm/qcom,x1e80100-mdss.yaml | 20 ++-- arch/arm64/boot/dts/qcom/sa8775p.dtsi | 34 +++++-- arch/arm64/boot/dts/qcom/sar2130p.dtsi | 10 +- arch/arm64/boot/dts/qcom/sc8180x.dtsi | 20 ++-- arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 72 +++++++++----- arch/arm64/boot/dts/qcom/sdm845.dtsi | 15 ++- arch/arm64/boot/dts/qcom/sm8150.dtsi | 10 +- arch/arm64/boot/dts/qcom/sm8250.dtsi | 10 +- arch/arm64/boot/dts/qcom/sm8350.dtsi | 10 +- arch/arm64/boot/dts/qcom/sm8450.dtsi | 10 +- arch/arm64/boot/dts/qcom/sm8550.dtsi | 10 +- arch/arm64/boot/dts/qcom/sm8650.dtsi | 10 +- arch/arm64/boot/dts/qcom/x1e80100.dtsi | 30 ++++-- 17 files changed, 305 insertions(+), 103 deletions(-) --- base-commit: a933d3dc1968fcfb0ab72879ec304b1971ed1b9a change-id: 20241202-dp_mst_bindings-7536ffc9ae2f Best regards, -- With best wishes Dmitry
