[PATCH v3 0/5] arm64: qcom: x1e80100-qcp: Add power supply and sideband signals for PCIe RC

Qiang Yu quic_qianyu at quicinc.com
Fri May 9 00:17:24 PDT 2025


On 5/8/2025 4:15 PM, Wenbin Yao wrote:
> The first patch enables the PCI Power Control driver to control the power
> state of PCI slots. The second patch adds the bus topology of PCIe domain 3
> on x1e80100 platform. The third patch adds perst, wake and clkreq sideband
> signals, and describe the regulators powering the rails of the PCI slots in
> the devicetree for PCIe3 controller and PHY device. The fourth patch adds
> qref supply in dts nodes of PCIe PHYs. The fifth patch requests qref supply
> for PCIe PHYs.
>
> The patchset has been modified based on comments and suggestions.
>
> Changes in v3:
> - Replace PCI_PWRCTL_SLOT with PCI_PWRCTRL_SLOT in Patch 1/5.
> - Kepp the order of pinctrl-0 before pinctrl-names in Patch 3/5.
> - Add Patch 5/5 to request qref supply for PCIe PHYs.
> - Link to v2: https://lore.kernel.org/all/20250425092955.4099677-1-quic_wenbyao@quicinc.com/
>
> Changes in v2:
> - Select PCI_PWRCTL_SLOT by ARCH_QCOM in arch/arm64/Kconfig.platforms in
>    Patch 1/4.
> - Add an empty line before pcie3port node in Patch 2/4.
> - Rename regulator-pcie_12v regulator-pcie_3v3_aux and regulator-pcie_3v3
>    in Patch 3/4.
> - Add Patch 4/4 to describe qref supply of PCIe PHYs.
> - Link to v1: https://lore.kernel.org/all/20250320055502.274849-1-quic_wenbyao@quicinc.com/
>
> Qiang Yu (5):
>    arm64: Kconfig: enable PCI Power Control Slot driver for QCOM
>    arm64: dts: qcom: x1e80100: add bus topology for PCIe domain 3
>    arm64: dts: qcom: x1e80100-qcp: enable pcie3 x8 slot for X1E80100-QCP
>    arm64: dts: qcom: x1e80100-qcp: Add qref supply for PCIe PHYs
>    phy: qcom: qmp-pcie: add x1e80100 qref supplies
>
>   arch/arm64/Kconfig.platforms              |   1 +
>   arch/arm64/boot/dts/qcom/x1e80100-qcp.dts | 121 ++++++++++++++++++++++
>   arch/arm64/boot/dts/qcom/x1e80100.dtsi    |  11 ++
>   drivers/phy/qualcomm/phy-qcom-qmp-pcie.c  |  37 ++++++-
>   4 files changed, 165 insertions(+), 5 deletions(-)
>
>
> base-commit: 0a00723f4c2d0b273edd0737f236f103164a08eb
Hi

Can you please review patch[1/5], patch[2/5] and patch[3/5] first, QREF
patch need more discussion, but it will not affect the PCIe function.

-- 
With best wishes
Qiang Yu




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