From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shawn Guo Subject: Re: [PATCH v4 2/5] ASoC: Move standard kcontrol helpers to the component level Date: Sat, 10 May 2014 16:31:33 +0800 Message-ID: <20140510083131.GL2870@dragon> References: <1398165797-22997-1-git-send-email-lars@metafoo.de> <1398165797-22997-3-git-send-email-lars@metafoo.de> <20140509150034.GH2870@dragon> <536CF16F.8010807@metafoo.de> <536CFBE7.3070805@metafoo.de> <20140510050747.GI2870@dragon> <536DCF6F.9020507@metafoo.de> <536DD108.2090607@metafoo.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2lp0204.outbound.protection.outlook.com [207.46.163.204]) by alsa0.perex.cz (Postfix) with ESMTP id 9900E261AB6 for ; Sat, 10 May 2014 10:31:55 +0200 (CEST) Content-Disposition: inline In-Reply-To: <536DD108.2090607@metafoo.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Lars-Peter Clausen Cc: "alsa-devel@alsa-project.org" , Mark Brown , Fabio Estevam , Liam Girdwood List-Id: alsa-devel@alsa-project.org On Sat, May 10, 2014 at 09:11:04AM +0200, Lars-Peter Clausen wrote: > On 05/10/2014 09:04 AM, Lars-Peter Clausen wrote: > [..] > >>The error message only shows up with Debian wheezy and does not with > >>yocto rootfs. And even when the error message shows, the audio still > >>functions well on Debian wheezy. So it's just a noisy error message > >>for me which is only seen after your kernel patch. > > > >The keyword here is "seen". The error quite likely predated the commit, but > >it was silently discarded. > > > >regmap_read() returns -EBUSY when there is no cached register value and > >cache_only is set to true. But I'm not sure why that would happen, try to > >add some printks to _regmap_read() to see if this is the source and if it is > >why it is. > > Both SGTL5000_CHIP_ANA_ADC_CTRL and SGTL5000_CHIP_MIC_CTRL don't > have an entry in sgtl5000_reg_defaults. So if cache_only is true, > controls which use these registers will return -EBUSY when you try > to read or write them. Hmm, it's a wm8962 than sgtl5000 on board imx6q-sabresd. Shawn