Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753786AbcKPR7p (ORCPT ); Wed, 16 Nov 2016 12:59:45 -0500 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:60930 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752312AbcKPR7p (ORCPT ); Wed, 16 Nov 2016 12:59:45 -0500 Date: Wed, 16 Nov 2016 17:59:29 +0000 From: Mark Brown To: Vinod Koul Cc: Charles Keepax , Hardik Shah , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, tiwai@suse.de, pierre-louis.bossart@linux.intel.com, lgirdwood@gmail.com, plai@codeaurora.org, patches.audio@intel.com, Sanyog Kale Message-ID: <20161116175929.kf7lfkcnqjdhasjk@sirena.org.uk> References: <1477053673-16021-1-git-send-email-hardik.t.shah@intel.com> <1477053673-16021-2-git-send-email-hardik.t.shah@intel.com> <20161114141548.GL1575@localhost.localdomain> <20161115142914.GN3000@localhost> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="dgw7jizuamgbgtoi" Content-Disposition: inline In-Reply-To: <20161115142914.GN3000@localhost> X-Cookie: Reality does not exist -- yet. User-Agent: NeoMutt/20161014 (1.7.1) X-SA-Exim-Connect-IP: 2001:470:1f1d:6b5::3 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [RFC 01/14] SoundWire: Add SoundWire bus driver documentation X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: No (on mezzanine.sirena.org.uk); Unknown failure Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1431 Lines: 36 --dgw7jizuamgbgtoi Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Nov 15, 2016 at 07:59:14PM +0530, Vinod Koul wrote: > On Mon, Nov 14, 2016 at 02:15:48PM +0000, Charles Keepax wrote: > > slaves register to that. This also has the nice property that its > > easy to create devices that sit behind other buses, for example > > here we might want a SoundWire master that sits behind a SPI bus. > > But you seem to have gone in the other direction and have the > > master sitting on the same bus as the slaves. > Since the controller on our SoC was enumerable, people went with this > approach. In this hindsight that may not have been the best choice. Doing buses properly isn't an obstacle to doing enumeration, indeed I'd expect it to make it a lot easier - just have your driver for your controller do the enumeration at probe time. --dgw7jizuamgbgtoi Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEcBAABCAAGBQJYLJ6AAAoJECTWi3JdVIfQ2VMH+QE9m6hKCzVw4UWGR7O40Zm9 R5r5VdB3nSLv2z5rhNlp/yuy0JLWR94lJ1vDWIZLbXClQ1IFq2U9LYiuDwvK4GCH 51fcyFBlifKuhepeBEhlOlra02Dph4nf52XqL8nBbb2QdObfe/SMG/EJZWgt6/Wc w0kj3/gZAbDTaWnycGr/ewQGMjN4xnFDu7H83QQPDR+xYFdj8jM6xv4PSZCVW2uc zC6Qlq8BXrk1EboOaEu146gzH2MlMWte6Cev+ZwKG2uYoNpLaZ9ZbnRfEpowmYbO AJ5ZEpXedxBnP1kboQkiIQ/Ki39BccRyOYXTYyIjBiRWc2MGOVHn3cthiIEWYk0= =ayun -----END PGP SIGNATURE----- --dgw7jizuamgbgtoi--