From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarkko Nikula Subject: Re: [PATCH 1/1] ASoC: TWL4030: Wait RAMP_DELAY on headsetl_event: POST_PMD Date: Mon, 11 May 2009 15:03:20 +0300 Message-ID: <20090511150320.1e15014b.jhnikula@gmail.com> References: <1242040465-10835-1-git-send-email-peter.ujfalusi@nokia.com> <1242040465-10835-2-git-send-email-peter.ujfalusi@nokia.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ew0-f223.google.com (mail-ew0-f223.google.com [209.85.219.223]) by alsa0.perex.cz (Postfix) with ESMTP id 27994247C7 for ; Mon, 11 May 2009 14:01:46 +0200 (CEST) Received: by ewy23 with SMTP id 23so3699278ewy.32 for ; Mon, 11 May 2009 05:01:45 -0700 (PDT) In-Reply-To: <1242040465-10835-2-git-send-email-peter.ujfalusi@nokia.com> 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: Peter Ujfalusi Cc: sakoman@gmail.com, anuj.aggarwal@ti.com, alsa-devel@alsa-project.org, broonie@opensource.wolfsonmicro.com, getarunks@gmail.com List-Id: alsa-devel@alsa-project.org On Mon, 11 May 2009 14:14:25 +0300 Peter Ujfalusi wrote: > This patch fixes the - agressive - 'tuck' sound heard when > the codec goes to standby mode. > > We need to wait for the ramp down completion in case of > headsetl_event:POST_PMD. > For my ears this sounds that the power-down pop is now even worse. I'm listening with some 32 ohm headphones connected into Beagle. Before it was kind of sharp snap but now it is snap + low-frequency tuck/pop. Positive that this low-frequency pop sounds kind of same than the power-up pop so there is now ramp in both events when coupling capasitor is charging/discharging. Do you know is the capacitor coupling configuration correct? TPS65950 is mentioning it but I don't find it at quick look where to configure it for ac-coupled connection. -- Jarkko