linux-kernel - Re: [PATCH v6 0/6] PCI: rzg3s-host: Add PCIe driver for Renesas RZ/G3S SoC

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Message-ID: <akw7hzxci73gd7zlbo56matorjihffuq45l22mzkmavzlm66k7@zjujvakf76ve>
Date: Fri, 14 Nov 2025 22:49:40 +0530
From: Manivannan Sadhasivam <mani@...nel.org>
To: Claudiu <claudiu.beznea@...on.dev>
Cc: lpieralisi@...nel.org, kwilczynski@...nel.org, robh@...nel.org, 
	bhelgaas@...gle.com, krzk+dt@...nel.org, conor+dt@...nel.org, geert+renesas@...der.be, 
	magnus.damm@...il.com, p.zabel@...gutronix.de, linux-pci@...r.kernel.org, 
	linux-renesas-soc@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: Re: [PATCH v6 0/6] PCI: rzg3s-host: Add PCIe driver for Renesas
 RZ/G3S SoC

On Wed, Oct 29, 2025 at 03:36:47PM +0200, Claudiu wrote:
> From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
> 
> Hi,
> 
> Series adds a PCIe driver for the Renesas RZ/G3S SoC.
> It is split as follows:
> - patches 1-2/6:	add PCIe support for the RZ/G3S SoC
> - patches 3-6/6:	add device tree support and defconfig flag
> 
> Please provide your feedback.
> 
> Merge strategy, if any:
> - patches 1-2/6 can go through the PCI tree

Patch 2 is not applying on top of v6.18-rc1. Please fix it up and resend.

- Mani

> - patches 3-6/6 can go through the Renesas tree
> 
> Thank you,
> Claudiu Beznea
> 
> Changes in v6:
> - addressed review comments on DT bindings and driver code
> - per-patch changes are described in each individual patch
> 
> Changes in v5:
> - dropped patch
>   "arm64: dts: renesas: rzg3s-smarc-som: Update dma-ranges for PCIe"
>   and introduced patch
>   "arm64: dts: renesas: rzg3s-smarc-som: Add PCIe reference clock"
> - addressed review comments
> - per-patch changes are described in each individual patch
> 
> Changes in v4:
> - dropped v3 patches:
>   - "clk: renesas: r9a08g045: Add clocks and resets support for PCIe"
>   - "soc: renesas: rz-sysc: Add syscon/regmap support"
>   as they are already integrated
> - dropped v3 patch "PCI: of_property: Restore the arguments of the
>   next level parent" as it is not needed anymore in this version due
>   port being added in device tree
> - addressed review comments
> - per-patch changes are described in each individual patch
> 
> Changes in v3:
> - added patch "PCI: of_property: Restore the arguments of the next level parent"
>   to fix the legacy interrupt request
> - addressed review comments
> - per-patch changes are described in each individual patch
> 
> Changes in v2:
> - dropped "of/irq: Export of_irq_count()" as it is not needed anymore
>   in this version
> - added "arm64: dts: renesas: rzg3s-smarc-som: Update dma-ranges for PCIe"
>   to reflect the board specific memory constraints
> - addressed review comments
> - updated patch "soc: renesas: rz-sysc: Add syscon/regmap support"
> - per-patch changes are described in each individual patch
> 
> Claudiu Beznea (6):
>   dt-bindings: PCI: renesas,r9a08g045s33-pcie: Add Renesas RZ/G3S
>   PCI: rzg3s-host: Add Renesas RZ/G3S SoC host driver
>   arm64: dts: renesas: r9a08g045: Add PCIe node
>   arm64: dts: renesas: rzg3s-smarc-som: Add PCIe reference clock
>   arm64: dts: renesas: rzg3s-smarc: Enable PCIe
>   arm64: defconfig: Enable PCIe for the Renesas RZ/G3S SoC
> 
>  .../bindings/pci/renesas,r9a08g045-pcie.yaml  |  249 +++
>  MAINTAINERS                                   |    8 +
>  arch/arm64/boot/dts/renesas/r9a08g045.dtsi    |   65 +
>  .../boot/dts/renesas/rzg3s-smarc-som.dtsi     |    5 +
>  arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi  |   11 +
>  arch/arm64/configs/defconfig                  |    1 +
>  drivers/pci/controller/Kconfig                |    9 +
>  drivers/pci/controller/Makefile               |    1 +
>  drivers/pci/controller/pcie-rzg3s-host.c      | 1759 +++++++++++++++++
>  9 files changed, 2108 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pci/renesas,r9a08g045-pcie.yaml
>  create mode 100644 drivers/pci/controller/pcie-rzg3s-host.c
> 
> -- 
> 2.43.0
> 

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