linux-kernel - Re: [PATCHv3 2/3] ARM: mxs: cfa10049: Switch bus i2c1 to bitbanging

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Date:	Sun, 07 Jul 2013 10:47:21 +0200
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Jonathan Cameron <jic23@...nel.org>
CC:	Shawn Guo <shawn.guo@...aro.org>,
	Jonathan Cameron <jic23@....ac.uk>, jimwall@...om,
	brian@...stalfontz.com,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree-discuss@...ts.ozlabs.org, Rob Landley <rob@...dley.net>,
	Rob Herring <rob.herring@...xeda.com>,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [PATCHv3 2/3] ARM: mxs: cfa10049: Switch bus i2c1 to bitbanging

On 06/07/2013 12:26, Jonathan Cameron wrote:
> On 06/24/2013 06:24 PM, Alexandre Belloni wrote:
>> From: Maxime Ripard <maxime.ripard@...e-electrons.com>
>>
>> The ADCs connected to this bus have been experiencing some timeout
>> issues when using the iMX28 i2c controller. Switching back to bitbanging
>> solves this.
>>
>> Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
>> Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
> 
> As there are no disadvantages in taking the driver through IIO and these changes
> through the appropriate arch trees, I'd not propose to take these through IIO
> (even when the discussion is done) unless specifically asked to.
> 

Sure, especially since, we may finally not move to i2c bitbanging. I'll
probably resend a new version of those patches separately.

Shawn, please wait for the i2c-mxs PIO/DMA mode discussion to end before
applying. If possible, I would prefer not using bitbanging.

Regards,


-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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