linux-kernel - Re: [RFC] [PATCH] Device Tree on ARM platform

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Message-ID: <20090528101339.GV6805@pengutronix.de>
Date:	Thu, 28 May 2009 12:13:40 +0200
From:	Robert Schwebel <r.schwebel@...gutronix.de>
To:	Wolfgang Denk <wd@...x.de>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	Robert Schwebel <r.schwebel@...gutronix.de>,
	Scott Wood <scottwood@...escale.com>,
	devicetree-discuss <devicetree-discuss@...abs.org>,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.arm.linux.org.uk,
	Janboe Ye <yuan-bo.ye@...orola.com>,
	Timur Tabi <timur@...escale.com>, rmk@....linux.org.uk
Subject: Re: [RFC] [PATCH] Device Tree on ARM platform

On Thu, May 28, 2009 at 11:51:26AM +0200, Wolfgang Denk wrote:
> True. From a commercial point of view this is a huge  problem  casued
> by the device tree - custumers who used to oder a BSP from commercial
> service providers (like Robert or me :-) now often find that all they
> need  to  do is to tweak the device tree to get their system running.
> Lost business. D*mn...  [Maybe this explains Robert's reluctance?]

Wolfgang, you know me long enough to realize that this argument is
*crap*.

Talking about business cases, it has turned out to be extremely
difficult to explain customers that the effort for the actual
functionality is only a little percentage of the work necessary to do
the oftree stuff right. The functionality has often worked after a few
hours, and until all oftrees have been solved, it often takes weeks.

In result, this has already led to customers concluding that

- mainline is not worth the effort
- linux is overkill and one should better use cortex-bare-metal

However, that is only our personal observation.

rsc
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