From mboxrd@z Thu Jan  1 00:00:00 1970
From: bobby <bseventynine@yahoo.com>
Subject: Re: Unsupported Valley View 'LPE' adapter?
Date: Thu, 27 Feb 2014 08:36:04 +0000 (UTC)
Message-ID: <loom.20140227T081207-421@post.gmane.org>
References: <1385840039.2566.12.camel@adam.happyassassin.net>
 <529A5C6A.70604@ladisch.de> <1385865517.2566.36.camel@adam.happyassassin.net>
 <20131202063216.GJ8834@intel.com>
 <1386035807.2566.145.camel@adam.happyassassin.net>
 <1388369981.15622.7.camel@adam.happyassassin.net>
 <1388370192.15622.8.camel@adam.happyassassin.net>
 <s5hwqiebsuo.wl%tiwai@suse.de> <loom.20140217T104754-228@post.gmane.org>
 <1392684057.2527.3.camel@xps13.happyassassin.net>
 <1392684512.2924.12.camel@adam.happyassassin.net>
 <1392785968.30443.1.camel@adam.happyassassin.net>
 <1392795682.2351.10.camel@loki>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <alsa-devel-bounces@alsa-project.org>
Received: from plane.gmane.org (plane.gmane.org [80.91.229.3])
 by alsa0.perex.cz (Postfix) with ESMTP id EACB02657F0
 for <alsa-devel@alsa-project.org>; Thu, 27 Feb 2014 09:36:32 +0100 (CET)
Received: from list by plane.gmane.org with local (Exim 4.69)
 (envelope-from <glad-alsa-devel-2@m.gmane.org>) id 1WIwSC-0002bE-O9
 for alsa-devel@alsa-project.org; Thu, 27 Feb 2014 09:36:29 +0100
Received: from 192.8.191.10 ([192.8.191.10])
 by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
 id 1AlnuQ-0007hv-00
 for <alsa-devel@alsa-project.org>; Thu, 27 Feb 2014 09:36:28 +0100
Received: from bseventynine by 192.8.191.10 with local (Gmexim 0.1 (Debian))
 id 1AlnuQ-0007hv-00
 for <alsa-devel@alsa-project.org>; Thu, 27 Feb 2014 09:36:28 +0100
List-Unsubscribe: <http://mailman.alsa-project.org/mailman/options/alsa-devel>,
 <mailto:alsa-devel-request@alsa-project.org?subject=unsubscribe>
List-Archive: <http://mailman.alsa-project.org/pipermail/alsa-devel/>
List-Post: <mailto:alsa-devel@alsa-project.org>
List-Help: <mailto:alsa-devel-request@alsa-project.org?subject=help>
List-Subscribe: <http://mailman.alsa-project.org/mailman/listinfo/alsa-devel>,
 <mailto:alsa-devel-request@alsa-project.org?subject=subscribe>
Errors-To: alsa-devel-bounces@alsa-project.org
Sender: alsa-devel-bounces@alsa-project.org
To: alsa-devel@alsa-project.org
List-Id: alsa-devel@alsa-project.org

Liam Girdwood <liam.r.girdwood <at> linux.intel.com> writes:

> 
> On Tue, 2014-02-18 at 20:59 -0800, Adam Williamson wrote:
> > On Mon, 2014-02-17 at 16:48 -0800, Adam Williamson wrote:
> > > On Mon, 2014-02-17 at 16:40 -0800, Adam Williamson wrote:
> > > > On Mon, 2014-02-17 at 09:54 +0000, bobby wrote:
> > > > > 
> > > > > This is a pci device for which the driver is not yet available.
> > > > > I went through the intel atom processor manual and found that it 
has 3 I2S 
> > > > > ports, has its 
> > > > > own DMA. The Soc is interfaced with LPE audio core via internal 
PCI bus. 
> > > > > Did you guys hear anything from intel about the driver support. 
Any inputs 
> > > > > would be of great help please
> > > > 
> > > > Jan Michael Brummer at Intel pointed this out to me recently:
> > > > 
> > > > 
https://kernel.googlesource.com/pub/scm/linux/kernel/git/lrg/asoc/+/intel/h
aswell-audio-dsp%5E
> > > > 
> > > > looks like it's being worked on.
> > > 
> > > Heh, that's actually just a mirror of the git ASoC branch. All those
> > > patches went through this very list last week. I don't know precisely
> > > how the upstreaming process goes for this stuff, but I'm guessing 
it'll
> > > wind up in 3.14 or 3.15.
> > > 
> > > (I may try building the patches into my Fedlet kernel builds and see 
if
> > > that gets anywhere...)
> > 
> > FWIW, I tried building a 3.14rc3 kernel with these patches applied and
> > the drivers enabled as modules. On boot on a Dell Venue 8 Pro, all the
> > relevant modules are loaded, but there's no ALSA device, and no
> > obviously useful errors in any logs, or useful output from alsa-
info.sh.
> > Is it expected that the driver doesn't actually work yet? Per the 
recent
> > commits, do I need some kind of firmware? Any debugging that would be
> > useful?
> 
> Sorry, we're not finished with the upstreaming yet. The current patches
> upstream are for the low level parts of the Intel DSP drivers. Jarkko
> and I still have to upstream the upper layers of the drivers (probably
> today) and you will also need firmware.
> 
> Once upstream the drivers will support Valley View, Baytrail, Haswell
> and Broadwell. The firmware for Baytrail and Valleyview will be
> available shortly too.
> 
> Liam 
> 
> 

Thanks Liam and Jarkko saw your patches related to the Intel SST Audio 
Platform drivers, I hope the upstreaming process is complete for this 
module. Please let us know when the firmware is available.

I have few question here, the i2s mode should be enabled in the platform 
drivers right. 

In the Bayley Bay bios I saw that the LPE audio could be enumerated via 
PCI or ACPI, the patches I saw mostly cover the ACPI mode. Will the PCI 
mode be covered in the patches.

Thanks in Advance
Bobby