[PATCH v3 0/5] Add JH7110 USB and USB PHY driver support

[Minda Chen]

This patchset adds USB driver and USB PHY for the StarFive JH7110 SoC.
USB work mode is peripheral and using USB 2.0 PHY in VisionFive 2 board.
The patch has been tested on the VisionFive 2 board.

This patchset should be applied after the patchset [1], [2] and[3]:
[1] https://lore.kernel.org/all/20230221083323.302471-1-xingyu.wu@starfivetech.com/
[2] https://lore.kernel.org/all/20230215113249.47727-4-william.qiu@starfivetech.com/
[3] https://lore.kernel.org/all/20230223015952.201841-1-changhuang.liang@starfivetech.com/

This patchset is base on v6.3-rc1

patch 1 is usb phy and pcie PHY layer dt-binding document.
patch 2 is USB 2.0 PHY and PCIe PHY driver.
patch 3 is usb wrapper layer dt-binding document.
patch 4 is the wrapper module driver of Cadence USB3. USB controller IP is Cadence USB3.
patch 5 is USB device tree configuration.

previous version
---
v1: https://patchwork.kernel.org/project/linux-usb/cover/20230306095212.25840-1-minda.chen@starfivetech.com/
v2: https://patchwork.kernel.org/project/linux-usb/cover/20230308082800.3008-1-minda.chen@starfivetech.com/

changes
v3:
  1. Add patch 1 and patch2. Add USB driver. USB PHY codes are moved to patch 2.
  2. (patch 3) USB wrapper module dts document is moved to usb directory.
     Remove the 'dr_mode' and 'starfive,usb2-only' setting.
     Some dts format changes. dts binding check pass.
  3. (patch 4) Remove the PHY codes. 
     Search 'dr_mode' and phy setting from Cadence subnode.
  4. (patch 5) Add USB PHY dts configurion. 
     'dr_mode' is moved to Cadence controller submode.

v2:
  1. (patch 3) dt-binding changes. The document example is the same as dts config.
  2. (patch 4) using dev_err_probe and syscon_regmap_lookup_by_phandle_args function. Some formats changes
  3. (patch 5) dts nodes sorted by the address after @


Minda Chen (5):
  dt-bindings: phy: Add StarFive JH7110 USB/PCIe document
  phy: starfive: add JH7110 PCIE 2.0 and USB 2.0 PHY driver.
  dt-binding: Add JH7110 USB wrapper layer doc.
  usb: cdns3: add StarFive JH7110 USB driver.
  dts: usb: add StarFive JH7110 USB dts configuration.

 .../phy/starfive,jh7110-usb-pcie-phy.yaml     |  62 ++++
 .../bindings/usb/starfive,jh7110-usb.yaml     | 119 +++++++
 MAINTAINERS                                   |  15 +
 .../jh7110-starfive-visionfive-2.dtsi         |   7 +
 arch/riscv/boot/dts/starfive/jh7110.dtsi      |  54 ++++
 drivers/phy/starfive/Kconfig                  |  22 ++
 drivers/phy/starfive/Makefile                 |   2 +
 drivers/phy/starfive/phy-jh7110-pcie.c        | 136 ++++++++
 drivers/phy/starfive/phy-jh7110-usb.c         | 167 ++++++++++
 drivers/usb/cdns3/Kconfig                     |  11 +
 drivers/usb/cdns3/Makefile                    |   1 +
 drivers/usb/cdns3/cdns3-starfive.c            | 305 ++++++++++++++++++
 12 files changed, 901 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/starfive,jh7110-usb-pcie-phy.yaml
 create mode 100644 Documentation/devicetree/bindings/usb/starfive,jh7110-usb.yaml
 create mode 100644 drivers/phy/starfive/phy-jh7110-pcie.c
 create mode 100644 drivers/phy/starfive/phy-jh7110-usb.c
 create mode 100644 drivers/usb/cdns3/cdns3-starfive.c


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2.17.1