[PATCH v4 0/5] Add support for Axis, ARTPEC-8 PCIe driver

[Wangseok Lee]

This v4 patchset is improvement several review comments received from patchset v3.

Main changes since v3 [3]:
dt-bindings: pci: Add ARTPEC-8 PCIe controller
-add missing properties

dt-bindings: phy: Add ARTPEC-8 PCIe phy
-add "fsys-sysreg" to properties
-modify the "lcpll-ref-clk" and "clocks" in properties
 "lcpll-ref-clk" is custom properties, so add 'vendor', type(enum),
 description
 Add the maxItem in clocks, add clock-names in properties

PCI: axis: Add ARTPEC-8 PCIe controller driver
-remove unnecessary enum type
-fix indentation

phy: Add ARTPEC-8 PCIe PHY driver
-modify to use GENMASK
-fix indentation
-remove the driver data

Main changes since v2 [2]:
dt-bindings: pci: Add ARTPEC-8 PCIe controller
-modify version history to fit the linux commit rule
-remove 'Device Tree Bindings' on title
-remove the interrupt-names, phy-names entries
-remove '_clk' suffix
-add the compatible entries on required
-change node name to soc from artpec8 on examples

dt-bindings: phy: Add ARTPEC-8 PCIe phy
-modify version history to fit the linux commit rule
-remove 'Device Tree Bindings' on title
-remove clock-names entries
-change node name to soc from artpec8 on excamples

PCI: axis: Add ARTPEC-8 PCIe controller driver
-add 'COMPILE_TEST' and improvement help on kconfig
-reorder obj on makefile
-use clk_bulk_api
-remove unnecessary comment
-redefine the ELBI register to distinguish between offset and
 bit definition
-improvement order local variable of function
-remove unnecessary local return variable

phy: Add ARTPEC-8 PCIe PHY driver
-remove unnecessary indentation
-redefine local struct to statis const
-add static const to struct that requires static const definition
-remove wrappers on writel and readl

Main changes since v1 [1]:
-'make dt_binding_check' result improvement
-Add the missing property list
-improvement review comment of Krzysztof on driver code
-change folder name of phy driver to axis from artpec

[3] https://lore.kernel.org/lkml/20220614011616epcms2p7dcaa67c53b7df5802dd7a697e2d472d7@epcms2p7/T
[2] https://lore.kernel.org/lkml/20220613015023epcms2p70e6700a99042d4deb560e40ab5397001@epcms2p7/T/
[1] https://lore.kernel.org/lkml/20220328014430epcms2p7063834feb0abdf2f38a62723c96c9ff1@epcms2p7/

--------------------------------------------------------------
This series patches include newly PCIe support for Axis ARTPEC-8 SoC.
ARTPEC-8 is the SoC platform of Axis Communications.
PCIe controller driver and phy driver have been newly added.
There is also a new MAINTAINER in the addition of phy driver.
PCIe controller is designed based on Design-Ware PCIe controller IP
and PCIe phy is desinged based on SAMSUNG PHY IP.
It also includes modifications to the Design-Ware controller driver to 
run the 64bit-based ARTPEC-8 PCIe controller driver.
It consists of 6 patches in total.

This series has been tested on AXIS SW bring-up board 
with ARTPEC-8 chipset.
--------------------------------------------------------------

Wangseok Lee (5):
  dt-bindings: pci: Add ARTPEC-8 PCIe controller
  dt-bindings: phy: Add ARTPEC-8 PCIe phy
  PCI: axis: Add ARTPEC-8 PCIe controller driver
  phy: Add ARTPEC-8 PCIe PHY driver
  MAINTAINERS: Add Axis ARTPEC-8 PCIe PHY maintainers

 .../bindings/pci/axis,artpec8-pcie-ep.yaml         | 138 ++++
 .../devicetree/bindings/pci/axis,artpec8-pcie.yaml | 148 ++++
 .../bindings/phy/axis,artpec8-pcie-phy.yaml        |  85 +++
 MAINTAINERS                                        |   2 +
 drivers/pci/controller/dwc/Kconfig                 |  31 +
 drivers/pci/controller/dwc/Makefile                |   1 +
 drivers/pci/controller/dwc/pcie-artpec8.c          | 788 +++++++++++++++++++++
 drivers/phy/Kconfig                                |   1 +
 drivers/phy/Makefile                               |   1 +
 drivers/phy/axis/Kconfig                           |   9 +
 drivers/phy/axis/Makefile                          |   2 +
 drivers/phy/axis/phy-artpec8-pcie.c                | 753 ++++++++++++++++++++
 12 files changed, 1959 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/axis,artpec8-pcie-ep.yaml
 create mode 100644 Documentation/devicetree/bindings/pci/axis,artpec8-pcie.yaml
 create mode 100644 Documentation/devicetree/bindings/phy/axis,artpec8-pcie-phy.yaml
 create mode 100644 drivers/pci/controller/dwc/pcie-artpec8.c
 create mode 100644 drivers/phy/axis/Kconfig
 create mode 100644 drivers/phy/axis/Makefile
 create mode 100644 drivers/phy/axis/phy-artpec8-pcie.c

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2.9.5