From mboxrd@z Thu Jan 1 00:00:00 1970 From: Darius Augulis Subject: Re: [PATCH 1/5] I2C driver for MXC Date: Mon, 30 Mar 2009 12:07:41 +0300 Message-ID: <49D08BDD.50509@gmail.com> References: <49C89E13.7040801@gmail.com> <20090324094215.GA3471@pengutronix.de> <49C8ABE5.40408@gmail.com> <20090325092625.GA3029@pengutronix.de> <49CA017D.20005@gmail.com> <20090325104357.GB3029@pengutronix.de> <20090330092402.GA31781@sirena.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Guennadi Liakhovetski Cc: Mark Brown , Wolfram Sang , Darius Augulis , public-linux-arm-kernel-xIg/pKzrS19vn6HldHNs0ANdhmdF6hFW-z5DuStaUktnZ+VzJOa5vwg@public.gmane.org, public-linux-i2c-u79uwXL29TY76Z2rM5mHXA-z5DuStaUktnZ+VzJOa5vwg@public.gmane.org, Sascha Hauer List-Id: linux-i2c@vger.kernel.org Guennadi Liakhovetski wrote: > On Mon, 30 Mar 2009, Mark Brown wrote: > >> On Sat, Mar 28, 2009 at 10:36:50PM +0100, Guennadi Liakhovetski wrote: >>> different drivers, and I really hoped its new version will work >>> out-of-the-box in my setup (pcm037 with a mt9t031 camera). Unfortunately, >>> it didn't. I've spent more than a full working day trying to get it to >>> work, but I didn't succeed so far. It works with the on-board rtc, but it >>> doesn't work with the camera, connected over a flex cable. >> What problems are you experiencing? I've been using versions of Darius' >> driver for a while now with no problems on my system. > > I couldn't read camera ID register during probing. As I mentioned, the > camera is connected over a, hm, limited-quality self-soldered (by > professionals) cable, and I have to reduce bus clock to 20kHz. Has anyone > tested this driver with lower frequencies? yes, I tested this with low frequencies (tens of kHz) and high freq. (400kHz). > > Thanks > Guennadi > --- > Guennadi Liakhovetski, Ph.D. > Freelance Open-Source Software Developer