[PATCH 1/3] dt-bindings: PCI: dwc: rockchip: Add RK3528 variant

[Rob Herring (Arm)]

On Sat, 06 Sep 2025 13:52:44 +0000, Yao Zi wrote:
> 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 at disroot.org>
> ---
>  Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml | 3 +++
>  1 file changed, 3 insertions(+)
> 

Acked-by: Rob Herring (Arm) <robh at kernel.org>