linux-kernel - Re: [linux-sunxi] [PATCH v6 9/9] arm64: allwinner: a64: enable Wi-Fi for Pine64

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Message-ID: <20170519071922.awmib4qphl6ac6mj@flea.home>
Date:   Fri, 19 May 2017 09:19:22 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Icenowy Zheng <icenowy@...c.io>
Cc:     Chen-Yu Tsai <wens@...e.org>, Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [linux-sunxi] [PATCH v6 9/9] arm64: allwinner: a64: enable Wi-Fi
 for Pine64

On Fri, May 19, 2017 at 11:03:33AM +0800, Icenowy Zheng wrote:
> >The patch looks OK, but given the module is removable, I think it
> >should be
> >an overlay. The overlay would enable WiFi + Bluetooth, and all the
> >peripherals needed to connect them.
> >
> >That way, if the module is not installed, we avoid confusing the user
> >with
> >unused peripherals, and avoid having live voltage on an unoccupied
> >header.
> 
> But as this header have specific usage, we will also confuse user
> if it's not enabled as its target usage.

Yet you would enable unused resources.

This was already pointed out here:
https://patchwork.kernel.org/patch/9670235/

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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