linux-kernel - Re: [PATCH 2/4] dt-bindings: doc: Reflect new NVMEM of_get_mac

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Date:   Sat, 27 Apr 2019 18:39:23 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Petr Štetiar <ynezz@...e.cz>
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Fugang Duan <fugang.duan@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Yisen Zhuang <yisen.zhuang@...wei.com>,
        Salil Mehta <salil.mehta@...wei.com>,
        Woojung Huh <woojung.huh@...rochip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Li Yang <leoyang.li@....com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Frank Rowand <frowand.list@...il.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Alban Bedel <albeu@...e.fr>,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-oxnas@...ups.io,
        linux-stm32@...md-mailman.stormreply.com,
        linux-wireless@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 2/4] dt-bindings: doc: Reflect new NVMEM
 of_get_mac_address behaviour

> diff --git a/Documentation/devicetree/bindings/net/macb.txt b/Documentation/devicetree/bindings/net/macb.txt
> index 8b80515..92c5642 100644
> --- a/Documentation/devicetree/bindings/net/macb.txt
> +++ b/Documentation/devicetree/bindings/net/macb.txt
> @@ -26,15 +26,15 @@ Required properties:
>  	Optional elements: 'tsu_clk'
>  - clocks: Phandles to input clocks.
>  
> -Optional properties:
> -- nvmem-cells: phandle, reference to an nvmem node for the MAC address
> -- nvmem-cell-names: string, should be "mac-address" if nvmem is to be used
> -
>  Optional properties for PHY child node:
>  - reset-gpios : Should specify the gpio for phy reset
>  - magic-packet : If present, indicates that the hardware supports waking
>    up via magic packet.
>  - phy-handle : see ethernet.txt file in the same directory
> +- mac-address: See ethernet.txt in the same directory.
> +- local-mac-address: See ethernet.txt in the same directory.
> +- nvmem-cells: See ethernet.txt in the same directory.
> +- nvmem-cell-names: See ethernet.txt in the same directory.

This looks wrong. The MAC address is not a PHY property, so should not
be inside the PHY child node.

phy-handle is in the wrong place, but that is a separate problem.

	   Andrew