linux-kernel - Re: [PATCH 1/3] ARM: dts: Add SPI flash node for Peach boards

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Date:	Wed, 19 Nov 2014 11:07:14 +0100
From:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
To:	Doug Anderson <dianders@...omium.org>
CC:	Kukjin Kim <kgene.kim@...sung.com>, Simon Glass <sjg@...omium.org>,
	Olof Johansson <olof@...om.net>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Mark Brown <broonie@...aro.org>
Subject: Re: [PATCH 1/3] ARM: dts: Add SPI flash node for Peach boards

Hello Doug,

Thanks for your feedback.

On 11/18/2014 06:50 PM, Doug Anderson wrote:
> This is common practice in the Chrome OS tree, but we've gotten
> pushback from upstream questioning about whether "spidev" is really a
> physical device.  See:
> 
> http://www.spinics.net/lists/linux-samsung-soc/msg29563.html
> 

I see, I thought that it was a common practice in the mainline kernel
too since I saw that many board DTS currently have a spidev node:

$ git grep 'compatible = "spidev"' arch/arm/boot/dts/ | wc -l
19

> 
> I don't really have an answer for something better to do here but I
> figured I'd at least bring up the point.
> 

I wonder how the spidev user-space interface is supposed to be used
when booting with Device Trees.

Best regards,
Javier
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