linux-kernel - [PATCH v3 0/5] Add support for Axis, ARTPEC-8 PCIe driver

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Message-ID: <20220614011616epcms2p7dcaa67c53b7df5802dd7a697e2d472d7@epcms2p7>
Date:   Tue, 14 Jun 2022 10:16:16 +0900
From:   Wangseok Lee <wangseok.lee@...sung.com>
To:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
        "kishon@...com" <kishon@...com>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "jesper.nilsson@...s.com" <jesper.nilsson@...s.com>,
        "lars.persson@...s.com" <lars.persson@...s.com>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "kw@...ux.com" <kw@...ux.com>,
        "linux-arm-kernel@...s.com" <linux-arm-kernel@...s.com>,
        "kernel@...s.com" <kernel@...s.com>
CC:     Moon-Ki Jun <moonki.jun@...sung.com>,
        Sang Min Kim <hypmean.kim@...sung.com>,
        Dongjin Yang <dj76.yang@...sung.com>,
        Yeeun Kim <yeeun119.kim@...sung.com>,
        Wangseok Lee <wangseok.lee@...sung.com>
Subject: [PATCH v3 0/5] Add support for Axis, ARTPEC-8 PCIe driver

This v3 patchset is improvement several review comments received from patchset v2.

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

[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         | 109 +++
 .../devicetree/bindings/pci/axis,artpec8-pcie.yaml | 120 ++++
 .../bindings/phy/axis,artpec8-pcie-phy.yaml        |  73 ++
 MAINTAINERS                                        |   2 +
 drivers/pci/controller/dwc/Kconfig                 |  31 +
 drivers/pci/controller/dwc/Makefile                |   1 +
 drivers/pci/controller/dwc/pcie-artpec8.c          | 797 +++++++++++++++++++++
 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                | 776 ++++++++++++++++++++
 12 files changed, 1922 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

-- 
2.9.5