From mboxrd@z Thu Jan 1 00:00:00 1970 From: Srinivas Kandagatla Subject: Re: [PATCH v1 4/6] ASoC: codecs: msm8916-wcd-analog: set default micbias voltage to 1.8 Date: Fri, 28 Jul 2017 14:54:59 +0100 Message-ID: <94765031-d840-bcae-11e3-16e1e55a7aa7@linaro.org> References: <20170726003512.18965-1-srinivas.kandagatla@linaro.org> <20170726003512.18965-5-srinivas.kandagatla@linaro.org> <20170728134038.y5wnrurmwn4bxxsh@sirena.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wr0-f175.google.com (mail-wr0-f175.google.com [209.85.128.175]) by alsa0.perex.cz (Postfix) with ESMTP id 318272676F1 for ; Fri, 28 Jul 2017 15:55:01 +0200 (CEST) Received: by mail-wr0-f175.google.com with SMTP id y43so155408577wrd.3 for ; Fri, 28 Jul 2017 06:55:01 -0700 (PDT) In-Reply-To: <20170728134038.y5wnrurmwn4bxxsh@sirena.org.uk> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Mark Brown Cc: alsa-devel@alsa-project.org, Banajit Goswami , Patrick Lai , linux-kernel@vger.kernel.org, Takashi Iwai List-Id: alsa-devel@alsa-project.org On 28/07/17 14:40, Mark Brown wrote: > On Wed, Jul 26, 2017 at 02:35:10AM +0200, srinivas.kandagatla@linaro.org wrote: >> From: Srinivas Kandagatla >> >> This patch sets the default internal micbias voltage to 1.8v. This >> default value is required for mbhc buttons to work. Also adds dt >> bindings to allow the board level file to specify the required default >> micbias value. > > What was the default previously? > This was set to 2.7v previously for special headsets which have high impedance.