linux-kernel - Re: [PATCH] ASoC: wm8804: Allow control of master clock divider in PLL generation

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] [day] [month] [year] [list]

Message-ID: <20140117184702.GG17314@sirena.org.uk>
Date:	Fri, 17 Jan 2014 18:47:02 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Florian Meier <florian.meier@...lo.de>
Cc:	Daniel Matuschek <daniel@...uschek.net>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	Dimitris.Papastamos@...fsonmicro.com,
	Liam Girdwood <lgirdwood@...il.com>, perex@...ex.cz,
	Takashi Iwai <tiwai@...e.de>,
	patches@...nsource.wolfsonmicro.com,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ASoC: wm8804: Allow control of master clock divider in
 PLL generation

On Fri, Jan 17, 2014 at 07:44:02PM +0100, Florian Meier wrote:
> On 01/17/2014 07:33 PM, Mark Brown wrote:

> > Setting it to false increases power consumption since the device is
> > kept more powered on when idle but reduces startup time from idle.  For
> > digital only devices like the wm8804 there shouldn't be any reason to
> > keep it powered up when not in use, the startup time is generally
> > negligable anyway.

> So a better solution would be to set SND_SOC_BIAS_OFF instead of
> SND_SOC_BIAS_STANDBY at the end of probe?

Yes (making sure that it is actually in that state).

Download attachment "signature.asc" of type "application/pgp-signature" (837 bytes)