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Message-ID: <20190820092251.GE23903@e119886-lin.cambridge.arm.com>
Date: Tue, 20 Aug 2019 10:22:52 +0100
From: Andrew Murray <andrew.murray@....com>
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>,
"bhelgaas@...gle.com" <bhelgaas@...gle.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: [PATCHv2 1/4] dt-bindings: PCI: designware: Remove the num-lanes
from Required properties
On Tue, Aug 20, 2019 at 07:28:43AM +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 is previously in both Required and Optional properties,
> let's remove it from the Required properties.
>
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
> ---
Reviewed-by: Andrew Murray <andrew.murray@....com>
> V2:
> - Reworded the change log and subject.
> - Fixed a typo in subject.
>
> 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
>
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