From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fabio Estevam Subject: Re: [PATCHv2 2/3] ARM: mxs: cfa10049: Switch bus i2c1 to bitbanging Date: Fri, 21 Jun 2013 19:27:44 -0300 Message-ID: References: <1371754675-12242-1-git-send-email-alexandre.belloni@free-electrons.com> <1371754675-12242-3-git-send-email-alexandre.belloni@free-electrons.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: In-Reply-To: <1371754675-12242-3-git-send-email-alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> Sender: linux-iio-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Alexandre Belloni Cc: Shawn Guo , Grant Likely , brian-ZKiFAVwZFM2FeswfMrDH8w@public.gmane.org, linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, jimwall@q.com, Rob Herring , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jonathan Cameron , Rob Landley , Maxime Ripard , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org On Thu, Jun 20, 2013 at 3:57 PM, Alexandre Belloni wrote: > From: Maxime Ripard > > 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.