linux-kernel - Re: [PATCH 2/2] i2c: s3c2410: Get the i2c bus number from alias id

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Date:	Wed, 21 Nov 2012 10:33:40 -0800
From:	Doug Anderson <dianders@...omium.org>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	linux-samsung-soc@...r.kernel.org, linux-i2c@...r.kernel.org,
	Olof Johansson <olof@...om.net>,
	Thomas Abraham <thomas.abraham@...aro.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Padmavathi Venna <padma.v@...sung.com>,
	Ben Dooks <ben-linux@...ff.org>,
	Wolfram Sang <w.sang@...gutronix.de>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] i2c: s3c2410: Get the i2c bus number from alias id

On Tue, Nov 20, 2012 at 8:09 PM, Mark Brown
<broonie@...nsource.wolfsonmicro.com> wrote:
> On Tue, Nov 20, 2012 at 02:27:04PM -0800, Doug Anderson wrote:
>> From: Padmavathi Venna <padma.v@...sung.com>
>>
>> Get the i2c bus number that the device is connected to using the alias
>> id.  This makes debugging / grokking of kernel messages much easier.
>
> This doesn't look like a s3c2410 specific change - it's a generic device
> tree issue.  This suggests that it sohuld be implemented in the
> framework so that all I2C controllers with DT can use it.

Good suggestion.  I have posted a series with the title "Add automatic
bus number support for i2c busses with device tree".  It contains the
i2c-core patch as well as a patch removing similar code from the pxa
i2c driver.

Kukjin: please consider this patch abandoned and superseded by the new
i2c-core patch.  As Olof said, the patch for adding aliases for
exynos4 should still be fine to apply.


Thanks!

-Doug
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