linux-kernel - [PATCH v3 0/4] pci: qcom: drop unrelated clock and add link

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Message-Id: <20250625090048.624399-1-quic_ziyuzhan@quicinc.com>
Date: Wed, 25 Jun 2025 17:00:44 +0800
From: Ziyue Zhang <quic_ziyuzhan@...cinc.com>
To: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, jingoohan1@...il.com,
        mani@...nel.org, lpieralisi@...nel.org, kwilczynski@...nel.org,
        bhelgaas@...gle.com, johan+linaro@...nel.org, vkoul@...nel.org,
        kishon@...nel.org, neil.armstrong@...aro.org, abel.vesa@...aro.org,
        kw@...ux.com
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-phy@...ts.infradead.org, qiang.yu@....qualcomm.com,
        quic_krichai@...cinc.com, quic_vbadigan@...cinc.com,
        Ziyue Zhang <quic_ziyuzhan@...cinc.com>
Subject: [PATCH v3 0/4] pci: qcom: drop unrelated clock and add link_down reset for sa8775p

This series drop gcc_aux_clock in pcie phy, the pcie aux clock should 
be gcc_phy_aux_clock. And sa8775p platform support link_down reset in
hardware, so add it for both pcie0 and pcie1 to provide a better user
experience.

Have follwing changes:
  - Update pcie phy bindings for sa8775p.
  - Document link_down reset.
  - Remove aux clock from pcie phy.
  - Add link_down reset for pcie.

Signed-off-by: Ziyue Zhang <quic_ziyuzhan@...cinc.com>

Changes in v3:
- Update phy bindings, remove phy_aux clock (Johan)
- Update DT binding's description (Johan)
- Link to v2: https://lore.kernel.org/all/20250617021617.2793902-1-quic_ziyuzhan@quicinc.com/

Changes in v2:
- Change link_down reset from optional to mandatory(Konrad)
- Link to v1: https://lore.kernel.org/all/20250529035416.4159963-1-quic_ziyuzhan@quicinc.com/

Ziyue Zhang (4):
  dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Update pcie phy bindings
  dt-bindings: PCI: qcom,pcie-sa8775p: document link_down reset
  arm64: dts: qcom: sa8775p: remove aux clock from pcie phy
  arm64: dts: qcom: sa8775p: add link_down reset for pcie

 .../bindings/pci/qcom,pcie-sa8775p.yaml       | 13 ++++--
 .../phy/qcom,sc8280xp-qmp-pcie-phy.yaml       |  7 ++--
 arch/arm64/boot/dts/qcom/sa8775p.dtsi         | 42 ++++++++++++-------
 3 files changed, 38 insertions(+), 24 deletions(-)


base-commit: 5d4809e25903ab8e74034c1f23c787fd26d52934
-- 
2.34.1