From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH 1/2 v2] ASoC: soc-cache: block based rbtree compression Date: Tue, 3 May 2011 16:40:43 +0100 Message-ID: <20110503154043.GW1762@opensource.wolfsonmicro.com> References: <20110503130259.GK1762@opensource.wolfsonmicro.com> <20110503132420.GM1762@opensource.wolfsonmicro.com> <20110503135117.GA2893@sirena.org.uk> <20110503142729.GP1762@opensource.wolfsonmicro.com> <20110503152405.GV1762@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 4CD7F1038B7 for ; Tue, 3 May 2011 17:40:46 +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: Takashi Iwai Cc: Dimitris Papastamos , alsa-devel@alsa-project.org, patches@opensource.wolfsonmicro.com, Liam Girdwood , Liam Girdwood List-Id: alsa-devel@alsa-project.org On Tue, May 03, 2011 at 05:30:44PM +0200, Takashi Iwai wrote: > Mark Brown wrote: > > You don't need to retransmit the I2C device address or the register > > address for every single register. > Is this behavior achieved really by these patches? As far as I read As I've repeatedly said these patches only provide a building block for that, they don't actually do anything to help with I/O by themselves. > these two patches, they change how values are stored in the rb-tree. > Now it'll be partially an array instead of one-value-per-node. But, > this doesn't change how snd_soc_read() / snd_soc_write() are called. > Could you give an example which driver would be influenced actually? There are no drivers that would benefit yet since the register caches they rely on can't support this yet!