On Tue, 23 Mar 2021 11:38:30 +0800, Chuanjia Liu wrote: > There are two independent PCIe controllers in MT2712 and MT7622 > platform. Each of them should contain an independent MSI domain. > > In old dts architecture, MSI domain will be inherited from the root > bridge, and all of the devices will share the same MSI domain. > Hence that, the PCIe devices will not work properly if the irq number > which required is more than 32. > > Split the PCIe node for MT2712 and MT7622 platform to comply with > the hardware design and fix MSI issue. > > Signed-off-by: Chuanjia Liu <chuanjia.liu@xxxxxxxxxxxx> > Acked-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx> > --- > .../bindings/pci/mediatek-pcie-cfg.yaml | 39 ++++ > .../devicetree/bindings/pci/mediatek-pcie.txt | 201 ++++++++++-------- > 2 files changed, 146 insertions(+), 94 deletions(-) > create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml > Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
