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

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Message-ID: <gvlvcs$ub5$1@ger.gmane.org>
Date:	Thu, 28 May 2009 12:17:32 +0000 (UTC)
From:	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	devicetree-discuss@...abs.org,
	linux-arm-kernel@...ts.arm.linux.org.uk
Subject:  Re: [RFC] [PATCH] Device Tree on ARM platform

David Miller wrote:

> From: Russell King - ARM Linux
> <linux@....linux.org.uk> Date: Thu, 28 May 2009
> 10:15:13 +0100
> 
>> For example, how would an IrDA transceiver be expressed in OF?
> 
> As a child device node of the IRDA device, with associated properties.
> 
> You can express _ANYTHING_ using the OF device tree.  It is not even
> something to discuss, it's flexible enough.

Hmmm. How to express the following situation:
On one of my platforms (sharp tosa) the backlight controller
is separated into two parts: one sitting on SPI, one on the I2C.
The tricky part is that the I2C part is only available when some
of registers of SPI part are programmed in a specific way.

-- 
With best wishes
Dmitry


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