linux-kernel - Re: [PATCH v2 0/4] Spilt PCIe node to comply with hardware design

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Message-ID: <1590721559.23866.0.camel@mtkswgap22>
Date:   Fri, 29 May 2020 11:05:59 +0800
From:   Ryder Lee <ryder.lee@...iatek.com>
To:     <chuanjia.liu@...iatek.com>
CC:     <robh+dt@...nel.org>, <matthias.bgg@...il.com>,
        <lorenzo.pieralisi@....com>, <amurray@...goodpenguin.co.uk>,
        <linux-pci@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <bhelgaas@...gle.com>,
        <jianjun.wang@...iatek.com>, <yong.wu@...iatek.com>,
        <srv_heupstream@...iatek.com>
Subject: Re: [PATCH v2 0/4] Spilt PCIe node to comply with hardware design

On Thu, 2020-05-28 at 14:16 +0800, chuanjia.liu@...iatek.com wrote:
> There are two independent PCIe controllers in MT2712/MT7622 platform,
> and each of them should contain an independent MSI domain.
> 
> In current 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/MT7622 platform to fix MSI issue and
> comply with the hardware design.
> 
> change note:
> v2: change the allocation of mt2712 PCIe MMIO space due to the allcation
> size is not right in v1.
> 
> chuanjia.liu (4):
>   dt-bindings: PCI: Mediatek: Update PCIe binding
>   PCI: mediatek: Use regmap to get shared pcie-cfg base
>   arm64: dts: mediatek: Split PCIe node for MT2712/MT7622
>   ARM: dts: mediatek: Update mt7629 PCIe node
> 
>  .../bindings/pci/mediatek-pcie-cfg.yaml       |  38 +++++
>  .../devicetree/bindings/pci/mediatek-pcie.txt | 144 +++++++++++-------
>  arch/arm/boot/dts/mt7629-rfb.dts              |   3 +-
>  arch/arm/boot/dts/mt7629.dtsi                 |  23 +--
>  arch/arm64/boot/dts/mediatek/mt2712e.dtsi     |  75 +++++----
>  .../dts/mediatek/mt7622-bananapi-bpi-r64.dts  |  16 +-
>  arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts  |   6 +-
>  arch/arm64/boot/dts/mediatek/mt7622.dtsi      |  68 ++++++---
>  drivers/pci/controller/pcie-mediatek.c        |  25 ++-
>  9 files changed, 258 insertions(+), 140 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
> 
> --
> 2.18.0
> 
> 
For the series:
Acked-by: Ryder Lee <ryder.lee@...iatek.com>