linux-kernel - [PATCH v2 0/8] PCI: rzg3s-host: Add PCIe driver for Renesas RZ/G3S SoC

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Message-ID: <20250530111917.1495023-1-claudiu.beznea.uj@bp.renesas.com>
Date: Fri, 30 May 2025 14:19:09 +0300
From: Claudiu <claudiu.beznea@...on.dev>
To: bhelgaas@...gle.com,
	lpieralisi@...nel.org,
	kw@...ux.com,
	manivannan.sadhasivam@...aro.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	geert+renesas@...der.be,
	magnus.damm@...il.com,
	mturquette@...libre.com,
	sboyd@...nel.org,
	p.zabel@...gutronix.de
Cc: claudiu.beznea@...on.dev,
	linux-pci@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-clk@...r.kernel.org,
	john.madieu.xa@...renesas.com,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: [PATCH v2 0/8] PCI: rzg3s-host: Add PCIe driver for Renesas RZ/G3S SoC

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:
- patch 1/8:		updates the max register offset for RZ/G3S SYSC;
			this is necessary as the PCIe need to setup the
			SYSC for proper functioning
- patch 2/8:		adds clock, reset and power domain support for
			the PCIe IP
- patches 3-4/8:	add PCIe support for the RZ/G3S SoC
- patches 5-8/8:	add device tree support and defconfig flag

Please provide your feedback.

Merge strategy, if any:
- patches 1-2,5-8/8 can go through the Renesas tree
- patches 3-4/8 can go through the PCI tree

Thank you,
Claudiu Beznea

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 (7):
  clk: renesas: r9a08g045: Add clocks, resets and power domain support
    for the PCIe
  dt-bindings: PCI: renesas,r9a08g045s33-pcie: Add documentation for the
    PCIe IP on Renesas RZ/G3S
  PCI: rzg3s-host: Add Initial PCIe Host Driver for Renesas RZ/G3S SoC
  arm64: dts: renesas: r9a08g045s33: Add PCIe node
  arm64: dts: renesas: rzg3s-smarc-som: Update dma-ranges for PCIe
  arm64: dts: renesas: rzg3s-smarc: Enable PCIe
  arm64: defconfig: Enable PCIe for the Renesas RZ/G3S SoC

John Madieu (1):
  soc: renesas: rz-sysc: Add syscon/regmap support

 .../pci/renesas,r9a08g045s33-pcie.yaml        |  202 ++
 MAINTAINERS                                   |    8 +
 arch/arm64/boot/dts/renesas/r9a08g045s33.dtsi |   60 +
 .../boot/dts/renesas/rzg3s-smarc-som.dtsi     |    5 +
 arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi  |   11 +
 arch/arm64/configs/defconfig                  |    1 +
 drivers/clk/renesas/r9a08g045-cpg.c           |   19 +
 drivers/pci/controller/Kconfig                |    7 +
 drivers/pci/controller/Makefile               |    1 +
 drivers/pci/controller/pcie-rzg3s-host.c      | 1686 +++++++++++++++++
 drivers/soc/renesas/Kconfig                   |    1 +
 drivers/soc/renesas/r9a08g045-sysc.c          |   10 +
 drivers/soc/renesas/r9a09g047-sys.c           |   10 +
 drivers/soc/renesas/r9a09g057-sys.c           |   10 +
 drivers/soc/renesas/rz-sysc.c                 |   17 +-
 drivers/soc/renesas/rz-sysc.h                 |    3 +
 16 files changed, 2050 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/pci/renesas,r9a08g045s33-pcie.yaml
 create mode 100644 drivers/pci/controller/pcie-rzg3s-host.c

-- 
2.43.0