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@xxxxxxxxxxx> > --- > Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml | 3 +++ > 1 file changed, 3 insertions(+) > Acked-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
