[PATCH v24 00/16] PCI: dwc: rcar-gen4: Add R-Car Gen4 PCIe support

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Add R-Car S4-8 (R-Car Gen4) PCIe controller for both host and endpoint modes.
To support them, modify PCIe DesignWare common codes.

Changes from v23:
https://lore.kernel.org/linux-pci/20230926122431.3974714-1-yoshihiro.shimoda.uh@xxxxxxxxxxx/
 - Based on the latest pci.git / next branch.
 - Remove Link tag and Krzysztof's s-o-b tags from all patches.
 - Drop "PCI: dwc: Expose dw_pcie_write_dbi2() to module".
 - Add "PCI: dwc: Disable two BARs to avoid unnecessary memory assignment".
 - Add Reviewed-by in the patch 0[137]/16 and the patch 1[24]/16.
 - Fix typo in the patch 14/16.
 - Fix error messages and commit descriptions in the patch 1[234]/16.
 - Change the subjects in the patch 1[34]/16.
 - Use aplhabetical order on Kconfig in the patch 1[34]/16.
 - Drop DWC spec code in the patch 13/16. 

Changes from v22:
https://lore.kernel.org/linux-pci/20230925072130.3901087-1-yoshihiro.shimoda.uh@xxxxxxxxxxx/
 - Based on the latest pci.git / next branch.
 - Add Reviewed-by in the patch 12/16.
 - Move a few endpoint related code from the patch 13/16 to 14/16.
 - Change subjects in the patch 1[34]/16.
 - Modify the code for readability in the patch 14/16.

Changes from v21:
https://lore.kernel.org/linux-pci/20230922065331.3806925-1-yoshihiro.shimoda.uh@xxxxxxxxxxx/
 - Based on the latest pci.git / next branch.
 - Fix -Wmissing-prototypes warnings that was reported by kernel test robot:
   https://lore.kernel.org/linux-pci/202309222125.KiN4nFhD-lkp@xxxxxxxxx/

Yoshihiro Shimoda (16):
  PCI: dwc: endpoint: Add multiple PFs support for dbi2
  PCI: dwc: Add dw_pcie_link_set_max_link_width()
  PCI: dwc: Add missing PCI_EXP_LNKCAP_MLW handling
  PCI: tegra194: Drop PCI_EXP_LNKSTA_NLW setting
  PCI: dwc: Add EDMA_UNROLL capability flag
  PCI: dwc: Expose dw_pcie_ep_exit() to module
  PCI: dwc: endpoint: Introduce .pre_init() and .deinit()
  PCI: dwc: Disable two BARs to avoid unnecessary memory assignment
  dt-bindings: PCI: dwc: Update maxItems of reg and reg-names
  dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host
  dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint
  PCI: Add T_PVPERL macro
  PCI: rcar-gen4: Add R-Car Gen4 PCIe controller support for host mode
  PCI: rcar-gen4: Add endpoint mode support
  MAINTAINERS: Update PCI DRIVER FOR RENESAS R-CAR for R-Car Gen4
  misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controller

 .../bindings/pci/rcar-gen4-pci-ep.yaml        | 115 ++++
 .../bindings/pci/rcar-gen4-pci-host.yaml      | 127 +++++
 .../bindings/pci/snps,dw-pcie-common.yaml     |   4 +-
 .../bindings/pci/snps,dw-pcie-ep.yaml         |   4 +-
 .../devicetree/bindings/pci/snps,dw-pcie.yaml |   4 +-
 MAINTAINERS                                   |   1 +
 drivers/misc/pci_endpoint_test.c              |   4 +
 drivers/pci/controller/dwc/Kconfig            |  25 +
 drivers/pci/controller/dwc/Makefile           |   1 +
 .../pci/controller/dwc/pcie-designware-ep.c   |  45 +-
 .../pci/controller/dwc/pcie-designware-host.c |   8 +
 drivers/pci/controller/dwc/pcie-designware.c  | 101 ++--
 drivers/pci/controller/dwc/pcie-designware.h  |   8 +-
 drivers/pci/controller/dwc/pcie-rcar-gen4.c   | 517 ++++++++++++++++++
 drivers/pci/controller/dwc/pcie-tegra194.c    |   6 -
 drivers/pci/pci.h                             |   3 +
 16 files changed, 904 insertions(+), 69 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pci/rcar-gen4-pci-ep.yaml
 create mode 100644 Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml
 create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4.c

-- 
2.25.1




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