linux-kernel - Re: [PATCH net-next 2/2] net: hns: enet specisies a reference to dsaf (config and documents)

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Date:	Sat, 05 Dec 2015 23:19:04 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	yankejian <yankejian@...wei.com>
Cc:	davem@...emloft.net, fengguang.wu@...el.com, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	catalin.marinas@....com, will.deacon@....com,
	salil.mehta@...wei.com, Yisen.Zhuang@...wei.com,
	liguozhu@...wei.com, lisheng011@...wei.com,
	huangdaode@...ilicon.com, xuwei5@...ilicon.com,
	haifeng.wei@...wei.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH net-next 2/2] net: hns: enet specisies a reference to dsaf (config and documents)

On Saturday 05 December 2015 14:10:56 yankejian wrote:
> diff --git a/Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt b/Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt
> index 80411b2..ecacfa4 100644
> --- a/Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt
> +++ b/Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt
> @@ -4,8 +4,6 @@ Required properties:
>  - compatible: should be "hisilicon,hns-dsaf-v1" or "hisilicon,hns-dsaf-v2".
>    "hisilicon,hns-dsaf-v1" is for hip05.
>    "hisilicon,hns-dsaf-v2" is for Hi1610 and Hi1612.
> -- dsa-name: dsa fabric name who provide this interface.
> -  should be "dsafX", X is the dsaf id.
>  - mode: dsa fabric mode string. only support one of dsaf modes like these:
>                 "2port-64vf",
>                 "6port-16rss",
> @@ -26,9 +24,8 @@ Required properties:
>  
>  Example:
>  
> -dsa: dsa@...00000 {
> +dsaf0: dsa@...00000 {
>         compatible = "hisilicon,hns-dsaf-v1";
> -       dsa_name = "dsaf0";
>         mode = "6port-16rss";
>         interrupt-parent = <&mbigen_dsa>;
>         reg = <0x0 0xC0000000 0x0 0x420000
> diff --git a/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt b/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
> index 41d19be..e6a9d1c 100644
> --- a/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
> +++ b/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
> @@ -4,8 +4,9 @@ Required properties:
>  - compatible: "hisilicon,hns-nic-v1" or "hisilicon,hns-nic-v2".
>    "hisilicon,hns-nic-v1" is for hip05.
>    "hisilicon,hns-nic-v2" is for Hi1610 and Hi1612.
> -- ae-name: accelerator name who provides this interface,
> -  is simply a name referring to the name of name in the accelerator node.
> +- ae-handle: accelerator engine handle for hns,
> +  specifies a reference to the associating hardware driver node.
> +  see Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt
>  - port-id: is the index of port provided by DSAF (the accelerator). DSAF can
>    connect to 8 PHYs. Port 0 to 1 are both used for adminstration purpose. They
>    are called debug ports.
> @@ -41,7 +42,7 @@ Example:
>  
> 

This looks like an incompatible change, as you add and remove
required properties. Is there a way to support both the old and
the new style?

	Arnd
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