linux-kernel - Re: [PATCH v3 0/6] Add DW PCIe support for Exynos5433 SoCs

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Message-ID: <20201103224437.GA271545@bjorn-Precision-5520>
Date:   Tue, 3 Nov 2020 16:44:37 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     linux-samsung-soc@...r.kernel.org, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v3 0/6] Add DW PCIe support for Exynos5433 SoCs

On Thu, Oct 29, 2020 at 02:40:11PM +0100, Marek Szyprowski wrote:
> Dear All,
> 
> This patchset is a resurrection of the DW PCIe support for the Exynos5433
> SoCs posted long time ago here: https://lkml.org/lkml/2016/12/26/6 and
> later here: https://lkml.org/lkml/2017/12/21/296 .
> 
> In meantime the support for the Exynos5440 SoCs has been completely
> dropped from mainline kernel, as those SoCs never reached the market. The
> PCIe driver for Exynos5440 variant however has not been removed yet. This
> patchset simply reworks it to support the Exynos5433 variant. The lack of
> the need to support both variants significantly simplifies the driver
> code.
> 
> This patchset is based on the following branch:
> git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git pci-more-dwc-cleanup
> 
> Best regards,
> Marek Szyprowski
> 
> 
> Changelog:
> 
> v3:
> - rebased onto "[00/13] PCI: dwc: Another round of clean-ups" patchset:
>   https://patchwork.kernel.org/project/linux-samsung-soc/cover/20201028204646.356535-1-robh@kernel.org/
> - fixed issues pointed by Rob in the driver logic:
>   * removed DBI_RO_WR_EN register poking
>   * made driver a standard module
> - fixed section mismatch issue
> - added "num-viewport = <3>" property to dts and bindings to fix warning
> 
> v2: https://lore.kernel.org/linux-samsung-soc/20201023075744.26200-1-m.szyprowski@samsung.com/
> - fixed issues in dt-bindings pointed by Krzysztof and Rob
> 
> v1: https://lore.kernel.org/linux-samsung-soc/20201019094715.15343-1-m.szyprowski@samsung.com/
> - initial version of this resurrected patchset
> 
> 
> Patch summary:

Please follow the subject line convention:

  PCI: exynos: Rework to support Exynos5433 variant
  arm64: dts: exynos: Add WiFi/PCIe support to TM2(e) boards
  dt-bindings: PCI: exynos: Drop samsung,exynos5440-pcie binding
  dt-bindings: PCI: exynos: Add samsung,exynos-pcie binding
  dt-bindings: phy: exynos: Add samsung,exynos-pcie-phy binding

You can save this trouble by running "git log --oneline" on the file
(or directory, for new files) and copying the style.

> Jaehoon Chung (3):
>   phy: samsung: phy-exynos-pcie: rework driver to support Exynos5433
>     PCIe PHY
>   pci: dwc: pci-exynos: rework the driver to support Exynos5433 variant
>   arm64: dts: exynos: add the WiFi/PCIe support to TM2(e) boards
> 
> Marek Szyprowski (3):
>   dt-bindings: pci: drop samsung,exynos5440-pcie binding
>   dt-bindings: pci: add the samsung,exynos-pcie binding
>   dt-bindings: phy: add the samsung,exynos-pcie-phy binding
> 
>  .../bindings/pci/samsung,exynos-pcie.yaml     | 119 ++++++
>  .../bindings/pci/samsung,exynos5440-pcie.txt  |  58 ---
>  .../bindings/phy/samsung,exynos-pcie-phy.yaml |  51 +++
>  .../boot/dts/exynos/exynos5433-pinctrl.dtsi   |   2 +-
>  .../dts/exynos/exynos5433-tm2-common.dtsi     |  24 +-
>  arch/arm64/boot/dts/exynos/exynos5433.dtsi    |  36 ++
>  drivers/pci/controller/dwc/Kconfig            |  10 +-
>  drivers/pci/controller/dwc/pci-exynos.c       | 353 +++++++-----------
>  drivers/pci/quirks.c                          |   1 +
>  drivers/phy/samsung/phy-exynos-pcie.c         | 304 ++++++---------
>  10 files changed, 489 insertions(+), 469 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/pci/samsung,exynos-pcie.yaml
>  delete mode 100644 Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt
>  create mode 100644 Documentation/devicetree/bindings/phy/samsung,exynos-pcie-phy.yaml
> 
> -- 
> 2.17.1
>