From mboxrd@z Thu Jan 1 00:00:00 1970 From: festevam@gmail.com (Fabio Estevam) Date: Wed, 10 Feb 2016 18:10:18 -0200 Subject: noise issues when recording sound on i.MX28 In-Reply-To: <20160210150315.GC13664@pengutronix.de> References: <20160127105613.GC13664@pengutronix.de> <20160127144340.GD13664@pengutronix.de> <20160210150315.GC13664@pengutronix.de> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Uwe, On Wed, Feb 10, 2016 at 1:03 PM, Uwe Kleine-K?nig wrote: > Hello Fabio, > > On Tue, Feb 02, 2016 at 11:00:33AM -0200, Fabio Estevam wrote: >> On Wed, Jan 27, 2016 at 12:43 PM, Uwe Kleine-K?nig >> wrote: >> >> > So you didn't hit the problem that resetting a saif didn't work, right? >> >> No, we haven't seen this reset issue. >> >> > Do you have a few more technical details here? A usecase of my machine >> >> Let me find out as it has been several years I worked on this problem. >> Will let you know. > > Anything new on your end? I know from Lothar that he invested quite some > time to debug his hardware setup, tested the codec instead of the i.MX28 > as clock provider and several more things. I also spend some time on > this issue and we both hope that Freescale/NXP can help in better > understanding the issue and hopefully can come up with a recipe to make > concurrent recording and playback on i.MX28 work. > > Lothar is in contact with Freescale, too, but up to now with little > success. The company I'm working for at the moment would also welcome a > solution here. Sorry for the delay. I have been on holidays. Can you confirm you have both SAIF interfaces being clocked from ref_pll?