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

From: Bjorn Helgaas
Date: Tue Nov 03 2020 - 17:44:41 EST


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@xxxxxxxxxx/
> - 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@xxxxxxxxxxx/
> - fixed issues in dt-bindings pointed by Krzysztof and Rob
>
> v1: https://lore.kernel.org/linux-samsung-soc/20201019094715.15343-1-m.szyprowski@xxxxxxxxxxx/
> - 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
>