From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vasily Khoruzhick Subject: Re: [PATCH RFC 1/3] ASoC: uda1380: use callbacks instead of gpiolib Date: Mon, 28 Jun 2010 17:25:25 +0300 Message-ID: <201006281725.30673.anarsoul@gmail.com> References: <1277565285-11563-1-git-send-email-anarsoul@gmail.com> <201006281705.57779.anarsoul@gmail.com> <20100628141539.GC7403@rakim.wolfsonmicro.main> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============7167106647037957417==" Return-path: Received: from mail-fx0-f51.google.com (mail-fx0-f51.google.com [209.85.161.51]) by alsa0.perex.cz (Postfix) with ESMTP id A3A3A2447A for ; Mon, 28 Jun 2010 16:25:41 +0200 (CEST) Received: by fxm15 with SMTP id 15so1145908fxm.38 for ; Mon, 28 Jun 2010 07:25:41 -0700 (PDT) In-Reply-To: <20100628141539.GC7403@rakim.wolfsonmicro.main> 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: Mark Brown Cc: alsa-devel , Philipp Zabel , Liam Girdwood List-Id: alsa-devel@alsa-project.org --===============7167106647037957417== Content-Type: multipart/signed; boundary="nextPart1290525.dIUGeX5SId"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit --nextPart1290525.dIUGeX5SId Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable =D0=92 =D1=81=D0=BE=D0=BE=D0=B1=D1=89=D0=B5=D0=BD=D0=B8=D0=B8 =D0=BE=D1=82 = 28 =D0=B8=D1=8E=D0=BD=D1=8F 2010 17:15:40 =D0=B0=D0=B2=D1=82=D0=BE=D1=80 Ma= rk Brown =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0=D0=BB: > What I'm trying to figure out is if the GPIO is wired directly to the > UDA1380 or if this is controlling something external to the UDA1380 > which these designs just happen to have copied. If it's a direct > connection to the UDA1380 then using GPIOs directly is perfectly > sensible. I'm not sure if s3c24xx GPIOs can drive UDA1380 directly. I suspect it's wi= red=20 to the gate of some transistor (FET - is it right term to use here? :)) to= =20 handle higher current (sorry, English is not my native language, and it's h= ard=20 to explain schematic-specific things, that's not my field :)). Btw, I'm sur= e=20 that there's no any external power-control chip, maybe just single transist= or. Regards Vasily --nextPart1290525.dIUGeX5SId Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (GNU/Linux) iEYEABECAAYFAkwosNoACgkQRM6pQpltKE7OcgCgzZqbQsRrn544eRF3vb0K/X1r f2UAoKCgqvchvOLNfvvPyN+kECbfGWqd =//Te -----END PGP SIGNATURE----- --nextPart1290525.dIUGeX5SId-- --===============7167106647037957417== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel --===============7167106647037957417==--