linux-kernel - [PATCH v4 00/13] Add DisplayPort support for QCS615 platform

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Message-Id: <20250911-add-displayport-support-for-qcs615-platform-v4-0-2702bdda14ed@oss.qualcomm.com>
Date: Thu, 11 Sep 2025 22:54:57 +0800
From: Xiangxu Yin <xiangxu.yin@....qualcomm.com>
To: Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        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>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
Cc: linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        fange.zhang@....qualcomm.com, yongxing.mou@....qualcomm.com,
        li.liu@....qualcomm.com, tingwei.zhang@....qualcomm.com,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Xiangxu Yin <xiangxu.yin@....qualcomm.com>
Subject: [PATCH v4 00/13] Add DisplayPort support for QCS615 platform

This series aims to extend the USB-C PHY to support DP mode and enable
DisplayPort on the Qualcomm QCS615 platform.

The devicetree modification for DisplayPort on QCS615 will be provided
in a future patch.

Signed-off-by: Xiangxu Yin <xiangxu.yin@....qualcomm.com>
---
Changes in v4:

- Drop patch v3[01/14 & 13/14], will sutbmit new patchsets based mst dt binding series.
- Update maintainer of qcom,qcs615-qmp-usb3dp-phy.yaml to myself.
- Add missing aux and pipe clocks. [Dmitry]
- Drop second TCSR phandle; register offsets are described directly. [Dmitry]
- Add USBC PHY series related init_load_uA configs. [Dmitry]
- Drop v3[04/14] qmp_phy_usbc_type define and use dp_serdes offsets to confirm DP capability [Dmitry]
- Reorganize sub-patches as suggested.
- Link to v3: https://lore.kernel.org/all/20250820-add-displayport-support-for-qcs615-platform-v3-0-a43bd25ec39c@oss.qualcomm.com/

Changes in v3:

- Renamed qcom,qcs615-qmp-dp-phy.yaml in v2 to qcom,qcs615-qmp-dp-phy.yaml in v3 for QCS615 USB3+DP PHY.
- Updated patch v3[02/14] to revise binding title, description, and property order. [Krzysztof]
- Updated commit messages in patch v3[01/14] and [13/14] to reflect the DTSI rename and clarify compatibility. [Krzysztof]
- Added USB3+DP mode implementation in patches v3 [003–012], organized in logical chunks. [Dmitry]
- Dropped patch v2[03/13] to maintain full backward compatibility with USBC.
- Link to v2: https://lore.kernel.org/all/20250722-add-displayport-support-for-qcs615-platform-v2-0-42b4037171f8@oss.qualcomm.com/

Changes in v2:

- Add new binding qcom,qcs615-qmp-dp-phy.yaml for QCS615 standalone DP
- Split DP PHY driver into patches 4-11 by logical chunks [Dmitry]
- Update DP PHY configuration flow to align with QMP Combo PHY implementation [Dmitry]
- Update all hex values to lowercase [Dmitry]
- Remove redundant comments in DP PHY driver [Krzysztof]
- Remove invalid USBC type define [Dmitry]
- Move lane_map， max_dp_lanes， max_dp_link_rate parsing logic to dp_link [Dmitry]
- Add TCSR-based mutex logic for DP and USB PHY coexistence [Dmitry]
- Drop patches 6–8 and remove related binding properties as rejected upstream
- Link to v1: https://lore.kernel.org/all/20241129-add-displayport-support-for-qcs615-platform-v1-0-09a4338d93ef@quicinc.com/

---
Xiangxu Yin (13):
      dt-bindings: phy: Add QMP USB3+DP PHY for QCS615
      phy: qcom: qmp-usbc: Rename USB-specific ops to prepare for DP support
      phy: qcom: qmp-usbc: Add DP-related fields for USB/DP switchable PHY
      phy: qcom: qmp-usbc: Add QCS615 DP PHY configuration and init data
      phy: qcom: qmp-usbc: Add regulator init_load support
      phy: qcom: qmp-usbc: Move reset config into PHY cfg
      phy: qcom: qmp-usbc: Add DP PHY configuration support for QCS615
      phy: qcom: qmp-usbc: Add USB/DP switchable PHY clk register
      phy: qcom: qmp-usbc: Add TCSR parsing and PHY mode setting
      phy: qcom: qmp-usbc: Add DP PHY ops for USB/DP switchable Type-C PHYs
      phy: qcom: qmp-usbc: Add USB/DP mutex handling
      drm/msm/dp: move link-specific parsing from dp_panel to dp_link
      drm/msm/dp: Add support for lane mapping configuration

 .../bindings/phy/qcom,qcs615-qmp-usb3dp-phy.yaml   |  111 ++
 drivers/gpu/drm/msm/dp/dp_ctrl.c                   |   10 +-
 drivers/gpu/drm/msm/dp/dp_link.c                   |   71 ++
 drivers/gpu/drm/msm/dp/dp_link.h                   |    5 +
 drivers/gpu/drm/msm/dp/dp_panel.c                  |   78 +-
 drivers/gpu/drm/msm/dp/dp_panel.h                  |    3 -
 drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v2.h      |   21 +
 drivers/phy/qualcomm/phy-qcom-qmp-usbc.c           | 1089 +++++++++++++++++---
 8 files changed, 1192 insertions(+), 196 deletions(-)
---
base-commit: 8f21d9da46702c4d6951ba60ca8a05f42870fe8f
change-id: 20250911-add-displayport-support-for-qcs615-platform-2f072e2ba239

Best regards,
-- 
Xiangxu Yin <xiangxu.yin@....qualcomm.com>