linux-kernel - Re: [PATCHv2 2/3] ARM: mxs: cfa10049: Switch bus i2c1 to bitbanging

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Message-ID: <CAOMZO5AbZVLH0rxP=iuumrDBxFe5XVGH9qK9PyUdxtucbOHzdg@mail.gmail.com>
Date:	Fri, 21 Jun 2013 19:27:44 -0300
From:	Fabio Estevam <festevam@...il.com>
To:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Cc:	Shawn Guo <shawn.guo@...aro.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	brian@...stalfontz.com, linux-doc@...r.kernel.org,
	linux-iio@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	jimwall@...om, Rob Herring <rob.herring@...xeda.com>,
	linux-kernel@...r.kernel.org, Jonathan Cameron <jic23@....ac.uk>,
	Rob Landley <rob@...dley.net>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCHv2 2/3] ARM: mxs: cfa10049: Switch bus i2c1 to bitbanging

On Thu, Jun 20, 2013 at 3:57 PM, Alexandre Belloni
<alexandre.belloni@...e-electrons.com> 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.

Could you please investigate this timeout issue?

The I2C timeouts I was having on mx28 when trying to access sgtl5000
codec, was due to the lack
of codec clock.

After I provided the codec clock I am able to use I2C without issues
and just sent a patch for it.
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