Re: [PATCH v8 1/4] dt-bindings: PCI: mediatek: Update the Device tree bindings

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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>



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