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Message-ID: <2042643.CrzyxZ31qj@diego>
Date: Thu, 18 Sep 2025 18:06:30 +0200
From: Heiko Stübner <heiko@...ech.de>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof Wilczyński <kwilczynski@...nel.org>,
Manivannan Sadhasivam <mani@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
Shawn Lin <shawn.lin@...k-chips.com>, Simon Xue <xxm@...k-chips.com>,
Yao Zi <ziyao@...root.org>
Cc: linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
linux-kernel@...r.kernel.org, Jonas Karlman <jonas@...boo.se>,
Chukun Pan <amadeus@....edu.cn>, Yao Zi <ziyao@...root.org>
Subject:
Re: [PATCH v2 1/3] dt-bindings: PCI: dwc: rockchip: Add RK3528 variant
Am Donnerstag, 18. September 2025, 17:30:55 Mitteleuropäische Sommerzeit schrieb Yao Zi:
> RK3528 ships a PCIe Gen2x1 controller that operates in RC mode only.
> Since the SoC has no separate MSI controller, the one integrated in the
> DWC PCIe IP must be used, and thus its interrupt scheme is similar to
> variants found in RK3562 and RK3576.
>
> Older BSP code claimed its integrated MSI controller supports only 8
> MSIs[1], but this has been changed in newer BSP[2] and testing proves
> the controller works correctly with more than 8 MSIs allocated,
> suggesting the controller should be compatible with the RK3568 variant.
> Let's document its compatible string.
>
> Link: https://github.com/rockchip-linux/kernel/blob/792a7d4273a5/drivers/pci/controller/dwc/pcie-dw-rockchip.c#L1610-L1613 # [1]
> Link: https://github.com/rockchip-linux/kernel/blob/1ba51b059f25/drivers/pci/controller/dwc/pcie-dw-rockchip.c#L904-L906 # [2]
> Signed-off-by: Yao Zi <ziyao@...root.org>
> Acked-by: Rob Herring (Arm) <robh@...nel.org>
Acked-by: Heiko Stuebner <heiko@...ech.de>
This likely should to go through the PCI tree.
(or needs an Ack from PCI maintainers, for me to pick it up)
Heiko
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