Thread (23 messages) 23 messages, 4 authors, 2026-01-22
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[PATCH 00/10] pci-imx6: Add support for parsing the reset property in new Root Port binding

From: Sherry Sun <hidden>
Date: 2026-01-19 10:03:38
Also in: imx, linux-devicetree, linux-pci, lkml

This patch set adds support for parsing the reset property in new Root Port
binding in pci-imx6 driver, similar to the implementation in the qcom pcie
driver[1].

The plan is to add the wake-gpio property to the root port in subsequent
patches. Also, the vpcie-supply property will be moved to the root port
node later based on the refactoring patch set for the PCI pwrctrl
framework[2]. 

[1] https://lore.kernel.org/linux-pci/20250702-perst-v5-0-920b3d1f6ee1@qti.qualcomm.com/ (local)
[2] https://lore.kernel.org/linux-pci/20260115-pci-pwrctrl-rework-v5-0-9d26da3ce903@oss.qualcomm.com/ (local)

Signed-off-by: Sherry Sun <redacted>
---
Sherry Sun (10):
  dt-bindings: PCI: fsl,imx6q-pcie: Add reset GPIO in Root Port node
  PCI: imx6: Add support for parsing the reset property in new Root Port
    binding
  arm: dts: imx6qdl: Add Root Port node and move PERST property to Root
    Port node
  arm: dts: imx6sx: Add Root Port node and move PERST property to Root
    Port node
  arm: dts: imx7d: Add Root Port node and move PERST property to Root
    Port node
  arm64: dts: imx8mm: Add Root Port node and move PERST property to Root
    Port node
  arm64: dts: imx8mp: Add Root Port node and move PERST property to Root
    Port node
  arm64: dts: imx8mq: Add Root Port nodes and move PERST property to
    Root Port node
  arm64: dts: imx8dxl/qm/qxp: Add Root Port nodes and move PERST
    property to Root Port node
  arm64: dts: imx95: Add Root Port nodes and move PERST property to Root
    Port node

 .../bindings/pci/fsl,imx6q-pcie.yaml          |  29 ++++
 .../arm/boot/dts/nxp/imx/imx6qdl-sabresd.dtsi |   5 +-
 arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi        |  11 ++
 .../arm/boot/dts/nxp/imx/imx6qp-sabreauto.dts |   5 +-
 arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi     |   5 +-
 arch/arm/boot/dts/nxp/imx/imx6sx.dtsi         |  11 ++
 arch/arm/boot/dts/nxp/imx/imx7d-sdb.dts       |   5 +-
 arch/arm/boot/dts/nxp/imx/imx7d.dtsi          |  11 ++
 .../boot/dts/freescale/imx8-ss-hsio.dtsi      |  11 ++
 arch/arm64/boot/dts/freescale/imx8dxl-evk.dts |   5 +-
 arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi |   5 +-
 arch/arm64/boot/dts/freescale/imx8mm.dtsi     |  11 ++
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts  |   5 +-
 arch/arm64/boot/dts/freescale/imx8mp.dtsi     |  11 ++
 arch/arm64/boot/dts/freescale/imx8mq-evk.dts  |  10 +-
 arch/arm64/boot/dts/freescale/imx8mq.dtsi     |  22 +++
 arch/arm64/boot/dts/freescale/imx8qm-mek.dts  |  10 +-
 .../boot/dts/freescale/imx8qm-ss-hsio.dtsi    |  22 +++
 arch/arm64/boot/dts/freescale/imx8qxp-mek.dts |   5 +-
 .../boot/dts/freescale/imx95-15x15-evk.dts    |   5 +-
 .../boot/dts/freescale/imx95-19x19-evk.dts    |  10 +-
 arch/arm64/boot/dts/freescale/imx95.dtsi      |  22 +++
 drivers/pci/controller/dwc/pci-imx6.c         | 128 ++++++++++++++++--
 23 files changed, 335 insertions(+), 29 deletions(-)

-- 
2.37.1

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