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Message-ID: <20210719224718.GA2766057@robh.at.kernel.org>
Date: Mon, 19 Jul 2021 16:47:18 -0600
From: Rob Herring <robh@...nel.org>
To: Chuanjia Liu <chuanjia.liu@...iatek.com>
Cc: linux-kernel@...r.kernel.org, lorenzo.pieralisi@....com,
jianjun.wang@...iatek.com, linux-mediatek@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, bhelgaas@...gle.com,
ryder.lee@...iatek.com, robh+dt@...nel.org, matthias.bgg@...il.com,
linux-pci@...r.kernel.org,
Frank Wunderlich <frank-w@...lic-files.de>,
devicetree@...r.kernel.org, yong.wu@...iatek.com
Subject: Re: [PATCH v11 1/4] dt-bindings: PCI: mediatek: Update the Device
tree bindings
On Mon, 19 Jul 2021 15:34:53 +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@...iatek.com>
> Acked-by: Ryder Lee <ryder.lee@...iatek.com>
> ---
> .../bindings/pci/mediatek-pcie-cfg.yaml | 39 ++++
> .../devicetree/bindings/pci/mediatek-pcie.txt | 206 ++++++++++--------
> 2 files changed, 150 insertions(+), 95 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
>
Please add Acked-by/Reviewed-by tags when posting new versions. However,
there's no need to repost patches *only* to add the tags. The upstream
maintainer will do that for acks received on the version they apply.
If a tag was not added on purpose, please state why and what changed.
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