linux-kernel - Re: [linux-sunxi] Re: [PATCH 2/3] spidev: Add DT binding example.

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Message-ID: <553CCABA.3090504@redhat.com>
Date:	Sun, 26 Apr 2015 13:23:38 +0200
From:	Hans de Goede <hdegoede@...hat.com>
To:	broonie@...nel.org, Michal Suchanek <hramrach@...il.com>
CC:	linux-sunxi <linux-sunxi@...glegroups.com>,
	Jonathan Corbet <corbet@....net>, linux-spi@...r.kernel.org,
	linux-doc@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [linux-sunxi] Re: [PATCH 2/3] spidev: Add DT binding example.

Hi,

On 26-04-15 13:01, Mark Brown wrote:
> On Sun, Apr 26, 2015 at 12:54:36PM +0200, Michal Suchanek wrote:
>> On 26 April 2015 at 12:32, Mark Brown <broonie@...nel.org> wrote:
>
>>> No, this is broken - nothing should ever bind to spidev as spidev.  The
>>> fact that we have a binding document at all is a bug.
>
>> And how do you get spidev if nothing binds to it?
>
>> When you boot without the binding no device is created.
>
> Describe your actual hardware in the DT then add the relevant device ID
> to spidev.

I think there is actual a use for just binding spidev as spidev,
think e.g. the spi pins on the raspberry pi.

How do you deal we suggest with such a situation ?

Regards,

Hans
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