linux-kernel - [PATCH v4 00/10] Add STM32MP25 PCIe drivers

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Message-ID: <20250128120745.334377-1-christian.bruel@foss.st.com>
Date: Tue, 28 Jan 2025 13:07:35 +0100
From: Christian Bruel <christian.bruel@...s.st.com>
To: <christian.bruel@...s.st.com>, <bhelgaas@...gle.com>,
        <lpieralisi@...nel.org>, <kw@...ux.com>,
        <manivannan.sadhasivam@...aro.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <mcoquelin.stm32@...il.com>, <alexandre.torgue@...s.st.com>,
        <jingoohan1@...il.com>, <p.zabel@...gutronix.de>,
        <johan+linaro@...nel.org>, <quic_schintav@...cinc.com>,
        <cassel@...nel.org>
CC: <linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <fabrice.gasnier@...s.st.com>
Subject: [PATCH v4 00/10] Add STM32MP25 PCIe drivers

Changes in v4:
   Address bindings comments Rob Herring
   - Remove phy property form common yaml
   - Remove phy-name property
   - Move wake_gpio and reset_gpio to the host root port
   
Changes in v3:
   Address comments from Manivanna, Rob and Bjorn:
   - Move host wakeup helper to dwc core (Mani)
   - Drop num-lanes=<1> from bindings (Rob)
   - Fix PCI address of I/O region (Mani)
   - Moved PHY to a RC rootport subsection (Bjorn, Mani)
   - Replaced dma-limit quirk by dma-ranges property (Bjorn)
   - Moved out perst assert/deassert from start/stop link (Mani)
   - Drop link_up test optim (Mani)
   - DT and comments rephrasing (Bjorn)
   - Add dts entries now that the combophy entries has landed
   - Drop delaying Configuration Requests

Changes in v2:
   - Fix st,stm32-pcie-common.yaml dt_binding_check	

Changes in v1:
   Address comments from Rob Herring and Bjorn Helgaas:
   - Drop st,limit-mrrs and st,max-payload-size from this patchset
   - Remove single reset and clocks binding names and misc yaml cleanups
   - Split RC/EP common bindings to a separate schema file
   - Use correct PCIE_T_PERST_CLK_US and PCIE_T_RRS_READY_MS defines
   - Use .remove instead of .remove_new
   - Fix bar reset sequence in EP driver
   - Use cleanup blocks for error handling
   - Cosmetic fixes

Christian Bruel (10):
  dt-bindings: PCI: Add STM32MP25 PCIe Root Complex bindings
  PCI: dwc: Add dw_pcie_wake_irq_handler helper
  PCI: stm32: Add PCIe host support for STM32MP25
  dt-bindings: PCI: Add STM32MP25 PCIe Endpoint bindings
  PCI: stm32: Add PCIe Endpoint support for STM32MP25
  MAINTAINERS: add entry for ST STM32MP25 PCIe drivers
  arm64: dts: st: add PCIe pinctrl entries in stm32mp25-pinctrl.dtsi
  arm64: dts: st: Add PCIe Rootcomplex mode on stm32mp251
  arm64: dts: st: Add PCIe Endpoint mode on stm32mp251
  arm64: dts: st: Enable PCIe on the stm32mp257f-ev1 board

 .../bindings/pci/st,stm32-pcie-common.yaml    |  33 ++
 .../bindings/pci/st,stm32-pcie-ep.yaml        |  67 +++
 .../bindings/pci/st,stm32-pcie-host.yaml      | 116 +++++
 MAINTAINERS                                   |   7 +
 arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi |  20 +
 arch/arm64/boot/dts/st/stm32mp251.dtsi        |  60 ++-
 arch/arm64/boot/dts/st/stm32mp257f-ev1.dts    |  22 +
 drivers/pci/controller/dwc/Kconfig            |  24 +
 drivers/pci/controller/dwc/Makefile           |   2 +
 .../pci/controller/dwc/pcie-designware-host.c |  15 +
 drivers/pci/controller/dwc/pcie-designware.h  |   2 +
 drivers/pci/controller/dwc/pcie-stm32-ep.c    | 420 ++++++++++++++++++
 drivers/pci/controller/dwc/pcie-stm32.c       | 372 ++++++++++++++++
 drivers/pci/controller/dwc/pcie-stm32.h       |  16 +
 14 files changed, 1175 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/pci/st,stm32-pcie-common.yaml
 create mode 100644 Documentation/devicetree/bindings/pci/st,stm32-pcie-ep.yaml
 create mode 100644 Documentation/devicetree/bindings/pci/st,stm32-pcie-host.yaml
 create mode 100644 drivers/pci/controller/dwc/pcie-stm32-ep.c
 create mode 100644 drivers/pci/controller/dwc/pcie-stm32.c
 create mode 100644 drivers/pci/controller/dwc/pcie-stm32.h

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2.34.1