[PATCH v4 0/2] arm64: dts: qcom: Describe the PCIe M.2 Key E connector for Monaco EVK

[Wei Deng]

Add DT support for the PCIe M.2 Mechanical Key E connector on the
Monaco EVK, following the same pattern as the lemans-evk series
(already in linux-next, commits 67f06acf/a6d4bb0a).

Patch 1/2 adds 'compatible = "pciclass,0604"' to the pcieport0 node in
monaco.dtsi, required for downstream DT nodes to be matched to PCI
devices.

Patch 2/2 describes the connector-3 node in monaco-evk.dts, wires the
PCIe 0 Root Port and UART2 endpoints inline in the board file, adds the
vreg_wcn_3p3 regulator, and adds the serial1 = &uart2 alias for BT
serdev enumeration.

This series is based on next-20260726.

Changes in v4:
- Drop the DTSI anchor patch (formerly 2/4): upstream BT maintainer
  Manivannan Sadhasivam indicated that changing the hci_qca.c detection
  from of_graph_is_present() to of_graph_get_remote_endpoint() is not
  warranted [1], so placing empty anchor nodes in the DTSI would cause
  hci_qca to probe the M.2 pwrseq path on all monaco-based boards,
  including those without an M.2 connector (e.g. qcs8300-ride). The
  port/endpoint nodes are now written directly inline in monaco-evk.dts.
- Fold former patches 3 and 4 into a single EVK patch (now 2/2).
- Fix &uart2 node override ordering in monaco-evk.dts (alphabetical,
  before &uart6).
- Link to v3: https://lore.kernel.org/r/20260819-b4-monaco-evk-m2-v1-v3-0-988145ef65cd@xxxxxxxxxxxxxxxx

[1] https://lore.kernel.org/all/isbrpaztfrgwfcleujrn4w26cshbi2mgn57tbh5bubvsegn6lc@jh3ab6htvd24/

Changes in v3:
- Drop vreg_dcin_12v from connector node; the 12V DC input is not
  software-controllable (Konrad)
- Add patch 4/4: move graph port/endpoint anchors from monaco.dtsi to
  monaco-evk.dts, so of_graph_is_present() only returns true on boards
  with an M.2 Key E connector
- Link to v2: https://lore.kernel.org/r/20260729-b4-monaco-evk-m2-v1-v2-0-0548e1dab760@xxxxxxxxxxxxxxxx

Changes in v2:
- Move PCIe Root Port and UART2 graph port/endpoint declarations from
  monaco-evk.dts into monaco.dtsi, per Konrad's suggestion.
- Link to v1: https://lore.kernel.org/all/20260727-b4-monaco-evk-m2-v1-v1-0-5429cce68599@xxxxxxxxxxxxxxxx/

---
Wei Deng (2):
      arm64: dts: qcom: monaco: Add compatible to the PCIe Root Port
      arm64: dts: qcom: monaco-evk: Describe the PCIe M.2 Key E connector

 arch/arm64/boot/dts/qcom/monaco-evk.dts | 60 +++++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/monaco.dtsi    |  1 +
 2 files changed, 61 insertions(+)
---
base-commit: 80489b8b7c62068b5223af10ead175367dcd127d
change-id: 20260727-b4-monaco-evk-m2-v1-dd56eb997378

Best regards,
-- 
Wei Deng <wei.deng@xxxxxxxxxxxxxxxx>