From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH V2 08/11] ARM: dts: imx6q-sabrelite: add sound device imx6q-sabrelite-sgtl5000 Date: Thu, 10 May 2012 10:45:08 +0100 Message-ID: <20120510094508.GN3908@opensource.wolfsonmicro.com> References: <1336563190-19974-1-git-send-email-richard.zhao@freescale.com> <1336563190-19974-9-git-send-email-richard.zhao@freescale.com> <20120510064816.GC17875@S2101-09.ap.freescale.net> <20120510093444.GI2982@b20223-02.ap.freescale.net> <20120510094113.GG17875@S2101-09.ap.freescale.net> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0138696157441284565==" Return-path: Received: from opensource.wolfsonmicro.com (opensource.wolfsonmicro.com [80.75.67.52]) by alsa0.perex.cz (Postfix) with ESMTP id 7A6A62437C for ; Thu, 10 May 2012 11:45:11 +0200 (CEST) In-Reply-To: <20120510094113.GG17875@S2101-09.ap.freescale.net> 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: Shawn Guo Cc: alsa-devel@alsa-project.org, ben-linux@fluff.org, vinod.koul@intel.com, w.sang@pengutronix.de, timur@freescale.com, Richard Zhao , linux-i2c@vger.kernel.org, kernel@pengutronix.de, dan.j.williams@intel.com, dong.aisheng@linaro.org, lrg@ti.com, linux-arm-kernel@lists.infradead.org List-Id: alsa-devel@alsa-project.org --===============0138696157441284565== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="2+jOUFLb7N+7fooZ" Content-Disposition: inline --2+jOUFLb7N+7fooZ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, May 10, 2012 at 05:41:15PM +0800, Shawn Guo wrote: > The "Mic Bias" here is really a SGTL5000 internal supply. If it is then what's providing the bias to the mic? It's common for chips to have a micbias supply which comes out of the chip and is used by mics, this is my understanding of what this circuit is. --2+jOUFLb7N+7fooZ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJPq44dAAoJEBus8iNuMP3dnJUP/RMY9Px3dNOwkBkUKZQ5K571 oMXj1mYt58XstyO261dgH9IY0H8IimuhIL0BJF7MZ7mMiZnnrT0hs2V1/IbaPkId Enwn9nIAlFrInJpFXHjp97mlhLbS69RgmgNdx4E4Y47YmzalbCiZ5h/i6i0K9J2h REb9TbRzqXyzvNGmJCQZ7yTq/dSZqc0j1byROvDSkUxGQwmXImRKjdr9NtgXwyqJ hZT1OW79ipgB9ITwll+VA1q//tzskr74bliCXKtW4DOlujXzbm6CFx8A9IxseN4S hD1sDrx7EC40S8NOZrO3KpIMQqLbsr2+80LTCguQVqGxeoeFvq1c0b2zciyTKZMu WKMNmFBpVP/RWWhXZRmVMoJ2uMYgcBaEZJk2g3oH4HZneS2DUklltS53zDFPBl+o /4U8m4vqXMm/g2Mc/oOOAoBsLnFmUrX1L8caPanNRI5ZGy4BbrB01RA9MAbutwDV 3OCX52JfvUTIl4nOzpnaUOb/N25JQPVSipaPU5f9K1+dwI8KmHqp6U+fs1VcHE5w z7Hh5iTJVKqE70MMpCXZXvi1gI8Xc3QkKyXGqWxE2QatUuAxnaOL1g0TgcHNTDwa 4DMHeeLEmmAKZMT29VadShsiYJDQ6B3RJb+HU4berzZvpOFXIaESGMWFK8uLN/Ar gex62XpbeIdBL3No1Xpq =tJAG -----END PGP SIGNATURE----- --2+jOUFLb7N+7fooZ-- --===============0138696157441284565== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline --===============0138696157441284565==--