From: khali@linux-fr.org (Jean Delvare)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] i2c: change the id to let the i2c device work
Date: Fri, 12 Oct 2012 09:14:27 +0200 [thread overview]
Message-ID: <20121012091427.0d7b2bed@endymion.delvare> (raw)
In-Reply-To: <20121012055301.GM11726@opensource.wolfsonmicro.com>
On Fri, 12 Oct 2012 14:53:02 +0900, Mark Brown wrote:
> On Fri, Oct 12, 2012 at 01:45:48PM +0800, Bo Shen wrote:
> > So, in this case, if the id = -1, i2c core will dynamically assign a
> > bus id to this bus when running, the dynamically assigned bus id is
> > unknown when writing the code. So, when we use
> > i2c_register_board_info(int busnum, ...) to register device on
> > busnum. we don't know which value to be use.
>
> The I2C bus number assigned to the controller should be independant of
> the platform device ID used to register the device; a better fix if this
> is an issue would be to update the i2c-gpio driver to allow a fixed bus
> number to be specified in platform data.
i2c-gpio does support this already.
--
Jean Delvare
next prev parent reply other threads:[~2012-10-12 7:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-12 2:34 [PATCH] i2c: change the id to let the i2c device work Bo Shen
2012-10-12 4:40 ` Mark Brown
2012-10-12 4:57 ` Bo Shen
2012-10-12 5:14 ` Mark Brown
2012-10-12 5:45 ` Bo Shen
2012-10-12 5:53 ` Mark Brown
2012-10-12 6:42 ` Bo Shen
2012-10-12 7:14 ` Jean Delvare [this message]
2012-10-12 7:55 ` Bo Shen
2012-10-12 8:05 ` Jean Delvare
2012-10-12 8:21 ` Mark Brown
2012-10-12 9:02 ` Bo Shen
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