From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH] ASoC: Add Jassi Brar as Samsung maintainer Date: Sun, 26 Sep 2010 17:20:00 -0700 Message-ID: <20100927001959.GB10638@opensource.wolfsonmicro.com> References: <1285402601-10131-1-git-send-email-broonie@opensource.wolfsonmicro.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from opensource2.wolfsonmicro.com (opensource.wolfsonmicro.com [80.75.67.52]) by alsa0.perex.cz (Postfix) with ESMTP id E807924607 for ; Mon, 27 Sep 2010 02:19:42 +0200 (CEST) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Kyungmin Park Cc: alsa-devel@alsa-project.org, Jassi Brar , Jassi Brar , Liam Girdwood List-Id: alsa-devel@alsa-project.org On Sun, Sep 26, 2010 at 07:49:42PM +0900, Kyungmin Park wrote: > I'm not sure runtime PM is required for audio since ALSA control the > codec well. but try to reduce the power as we can. About all you can do with most CPUs is turn off the clocks within the block when they're not needed, the runtime PM subsystem itself is usually only useful if you've got support for power gating within the CPU (which tends to be done over multiple blocks so they all need to go idle before you can power them off).