From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vinod Koul Subject: Re: [PATCH v2 0/5] ASoC: Intel: ACPI support and machines Date: Wed, 5 Nov 2014 14:13:12 +0530 Message-ID: <20141105084312.GK1870@intel.com> References: <1415079068-4979-1-git-send-email-vinod.koul@intel.com> <545889C4.5000509@linux.intel.com> <20141104082510.GC1870@intel.com> <545896DE.4030305@linux.intel.com> <20141104111513.GE3815@sirena.org.uk> <5459D68F.6030100@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by alsa0.perex.cz (Postfix) with ESMTP id 01943261A0D for ; Wed, 5 Nov 2014 09:42:33 +0100 (CET) Content-Disposition: inline In-Reply-To: <5459D68F.6030100@linux.intel.com> 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 Cc: alsa-devel@alsa-project.org, tiwai@suse.de, Jarkko Nikula , lgirdwood@gmail.com, Mark Brown , liam.r.girdwood@intel.com, subhransu.s.prusty@intel.com List-Id: alsa-devel@alsa-project.org On Wed, Nov 05, 2014 at 09:49:35AM +0200, Jarkko Nikula wrote: > On 11/04/2014 01:15 PM, Mark Brown wrote: > >>Ok, so firmware appears to works on other than CR Baytrails too. Is it > >>available in linux-firmware since if it's not when changing the platform > >>drivers there will be obvious regressions to users? > >Can we take a step back here: what are the firmwares and hardware > >platforms we're talking about here? > > Only Baytrail and its variants. Current upstreamed drivers use > "intel/fw_sst_0f28.bin-48kHz_i2s_master" but that FW doesn't have as > much features like compressed audio and is not compatible with the > one Vinod's team is upstreaming. > > Goal is to switch to new implementation since it covers more > platforms but do switchover as seamlessly as possible for Baytrail. > Problem at the moment for Baytrail that both current and new drivers > probe using the same ACPIIDs and FW for new drivers is not yet in > linux-firmware. Shouldn't that be okay, as user wouldn't select the new driver. Default is n :) Only when driver is stable and verfied by users should we enable this and then start removing older driver -- ~Vinod > > > > >>Well, those audio routing differences require to have DMI quirks. E.g. T100 > >>has analogue internal mic, Dell Venue 8 Pro 5830 has digital mic connected > >>to DMIC2 of the RT564x and some have it connected to DMIC1. > >Are any of these things on sale at the minute? Looks like T100 and the > >Dell both are but I'm not sure if they're current or previous models. > > T100 and Dell are. Third known audio routing difference is used in > reference design so I guess that setup is found on some models too. > Then there are byt-max98090 based Chromebooks that use current > drivers and FW. > > -- > Jarkko --