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

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Message-ID: <16dee602b96510170ee1117cfaae0025@aosc.io>
Date:   Fri, 19 May 2017 15:22:28 +0800
From:   icenowy@...c.io
To:     Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:     devicetree <devicetree@...r.kernel.org>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        Mark Brown <broonie@...nel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Lee Jones <lee.jones@...aro.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [linux-sunxi] [PATCH v6 9/9] arm64: allwinner: a64: enable Wi-Fi
 for Pine64

在 2017-05-19 15:19，Maxime Ripard 写道：
> 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/

I think, before we have an official repository of device tree
overlays (either directly in torvalds/linux or maintained by
linux-sunxi), we shouldn't rely on device tree overlay
functionality.

> 
> Maxime
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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