linux-kernel - Re: [PATCH] i2c-i801: Add device tree support

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Message-ID: <20120818190152.GE19802@pengutronix.de>
Date:	Sat, 18 Aug 2012 21:01:52 +0200
From:	Wolfram Sang <w.sang@...gutronix.de>
To:	Thierry Reding <thierry.reding@...onic-design.de>
Cc:	Jean Delvare <khali@...ux-fr.org>, Ben Dooks <ben-linux@...ff.org>,
	Daniel Kurtz <djkurtz@...omium.org>, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c-i801: Add device tree support


> > I thought to recall that busses which can be probed at runtime should
> > not have nodes but should be probed. Maybe that was wrong. Can you point
> > me to a dts-file with an example?
> 
> That approach doesn't work for I2C controllers, though because you
> couldn't attach an slaves to them. The same goes for SPI controllers or
> any other dumb busses that can't be probed.

I understand the problem. I was wondering how it has been solved. Thanks
for the pointer, I got the idea now.

> arch/x86/platform/ce4100/falconfalls.dts is an example for an X86
> platform where PCI devices have associated device tree nodes.

Do you intend to send a dts file mainline which needs the patch you sent?

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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