From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Subject: Re: [PATCH 1/2 V3] MXS: Set I2C timing registers for mxs-i2c Date: Wed, 27 Jun 2012 03:30:31 +0200 Message-ID: <201206270330.31669.marex@denx.de> References: <1339242351-8797-1-git-send-email-marex@denx.de> <20120611063903.GD2552@S2101-09.ap.freescale.net> <201206111254.21766.marex@denx.de> Mime-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <201206111254.21766.marex-ynQEQJNshbs@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Shawn Guo Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Detlev Zundel , Dong Aisheng , Fabio Estevam , Linux ARM kernel , Sascha Hauer , Stefano Babic , Uwe =?iso-8859-1?q?Kleine-K=F6nig?= , Wolfgang Denk , Wolfram Sang List-Id: linux-i2c@vger.kernel.org Dear Shawn Guo, > > On Sat, Jun 09, 2012 at 01:45:50PM +0200, Marek Vasut wrote: > > > This patch configures the I2C bus timing registers according > > > to information passed via DT. Currently, 100kHz and 400kHz > > > modes are supported. > > > > > > Signed-off-by: Marek Vasut > > > > I gave it a test on imx28-evk board with audio playback. It seems > > the patch makes the first time playback non-functional, but the later > > playback is still working. > > Any hints what can be the source of this issue? I tested it with i2c > eeprom, saw no issues in there. I'll poke into it later. Ok, I managed to replicate it just now. Scrap my previous email. Still, any idea what can cause this? Best regards, Marek Vasut