linux-kernel - Re: [alsa-devel] [PATCH] ASoC: soc-pcm: Use delay set in pointer function

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20180731100315.GA5719@sirena.org.uk>
Date:   Tue, 31 Jul 2018 11:03:15 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     "Agrawal, Akshu" <Akshu.Agrawal@....com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." 
        <alsa-devel@...a-project.org>, Alexander.Deucher@....com,
        djkurtz@...omium.org, Liam Girdwood <lgirdwood@...il.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [alsa-devel] [PATCH] ASoC: soc-pcm: Use delay set in pointer
 function

On Tue, Jul 31, 2018 at 07:30:16AM +0200, Takashi Iwai wrote:

> OTOH, if the CPU dai can really provide a dynamic value that is
> strictly tied with pointer, CPU dai itself should provide the pointer
> callback that covers both the pointer and the base delay, and it
> should be used instead of component pointer callback.

Probably anything in the SoC would be potentially able to get a dynamic
value out - the main issue for off SoC devices is the cost of getting to
the data but that's not an issue when you're memory mapped.

Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)