linux-kernel - Re: [PATCH 1/4] dt-bingings: PCI: Remove the num-lanes from Required properties

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Message-ID: <20190819192029.GS253360@google.com>
Date:   Mon, 19 Aug 2019 14:20:29 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     "Z.q. Hou" <zhiqiang.hou@....com>
Cc:     "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "gustavo.pimentel@...opsys.com" <gustavo.pimentel@...opsys.com>,
        "jingoohan1@...il.com" <jingoohan1@...il.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Leo Li <leoyang.li@....com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "M.h. Lian" <minghuan.lian@....com>
Subject: Re: [PATCH 1/4] dt-bingings: PCI: Remove the num-lanes from Required
 properties

In subject:

  s/dt-bingings/dt-bindings/

Also, possibly

  s/PCI:/PCI: designware:/

since this only applies to designware-pcie.txt.

On Mon, Aug 12, 2019 at 04:22:16AM +0000, Z.q. Hou wrote:
> From: Hou Zhiqiang <Zhiqiang.Hou@....com>
> 
> The num-lanes is not a mandatory property, e.g. on FSL
> Layerscape SoCs, the PCIe link training is completed
> automatically base on the selected SerDes protocol, it
> doesn't need the num-lanes to set-up the link width.
> 
> It has been added in the Optional properties. This
> patch is to remove it from the Required properties.
> 
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
> ---
>  Documentation/devicetree/bindings/pci/designware-pcie.txt | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt
> index 5561a1c060d0..bd880df39a79 100644
> --- a/Documentation/devicetree/bindings/pci/designware-pcie.txt
> +++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt
> @@ -11,7 +11,6 @@ Required properties:
>  	     the ATU address space.
>      (The old way of getting the configuration address space from "ranges"
>      is deprecated and should be avoided.)
> -- num-lanes: number of lanes to use
>  RC mode:
>  - #address-cells: set to <3>
>  - #size-cells: set to <2>
> -- 
> 2.17.1
>