linux-kernel - Re: [PATCH v6 0/7] Add ASPEED PCIe Root Complex support

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Message-ID: <20251204195355.GA1975043-robh@kernel.org>
Date: Thu, 4 Dec 2025 13:53:55 -0600
From: Rob Herring <robh@...nel.org>
To: Jacky Chou <jacky_chou@...eedtech.com>
Cc: Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Joel Stanley <joel@....id.au>,
	Andrew Jeffery <andrew@...econstruct.com.au>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kwilczynski@...nel.org>,
	Manivannan Sadhasivam <mani@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	linux-aspeed@...ts.ozlabs.org, linux-pci@...r.kernel.org,
	linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Andrew Jeffery <andrew@...id.au>, openbmc@...ts.ozlabs.org,
	linux-gpio@...r.kernel.org
Subject: Re: [PATCH v6 0/7] Add ASPEED PCIe Root Complex support

On Mon, Dec 01, 2025 at 02:29:10PM +0800, Jacky Chou wrote:
> This patch series adds support for the ASPEED PCIe Root Complex,
> including device tree bindings, pinctrl support, and the PCIe host controller
> driver. The patches introduce the necessary device tree nodes, pinmux groups,
> and driver implementation to enable PCIe functionality on ASPEED platforms.
> Currently, the ASPEED PCIe Root Complex only supports a single port.
> 
> Summary of changes:
> - Add device tree binding documents for ASPEED PCIe PHY, PCIe Config, and PCIe RC
> - Update MAINTAINERS for new bindings and driver
> - Add PCIe RC node and PERST control pin to aspeed-g6 device tree
> - Implement ASPEED PCIe PHY driver
> - Implement ASPEED PCIe Root Complex host controller driver
> 
> This series has been tested on AST2600/AST2700 platforms and enables PCIe device
> enumeration and operation.
> 
> Signed-off-by: Jacky Chou <jacky_chou@...eedtech.com>
> ---
> Changes in v6:
> - Refer to pci-cpi-bridge.yaml to update aspeed,ast2600-pcie.yaml and
>   the pcie node of aspeed-g6.dtsi.

Where is this? You don't describe the root port and its properties at 
all now.

> - 'dt-bindings: pinctrl: aspeed,ast2600-pinctrl: Add PCIe RC PERST#
>   group' have applied, remove it from this version.
> - Adjust the defnitions in pci.h. 
> - Link to v5: https://lore.kernel.org/r/20251117-upstream_pcie_rc-v5-0-b4a198576acf@aspeedtech.com