From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH v6] ASoC: add RT286 CODEC driver Date: Wed, 4 Jun 2014 13:37:15 +0100 Message-ID: <20140604123715.GJ2520@sirena.org.uk> References: <536B4708.8080203@metafoo.de> <20140512202918.GG12304@sirena.org.uk> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============5223413368621346273==" Return-path: Received: from mezzanine.sirena.org.uk (mezzanine.sirena.org.uk [106.187.55.193]) by alsa0.perex.cz (Postfix) with ESMTP id A620D264EED for ; Wed, 4 Jun 2014 14:37:44 +0200 (CEST) In-Reply-To: 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: Bard Liao Cc: Oder Chiou , "alsa-devel@alsa-project.org" , Lars-Peter Clausen , "lgirdwood@gmail.com" , Gustaw Lewandowski , Flove List-Id: alsa-devel@alsa-project.org --===============5223413368621346273== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="MzdA25v054BPvyZa" Content-Disposition: inline --MzdA25v054BPvyZa Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Jun 04, 2014 at 12:08:41PM +0000, Bard Liao wrote: > > Kind of? It solves the cache sync case and if it's write only then we won't need to > > go to the register map for reads anyway (outside of interrupt handling and so on). > Does "write only regmap" mean read (almost) everything from cache? If so, we > don't need to care about the asymmetry read/write issue. In that case, can we > use regmap for mixer/mux controls just like other drivers do? Yes, exactly - most things should be able to get away with only using the cache I'd expect. --MzdA25v054BPvyZa Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJTjxL4AAoJELSic+t+oim96xIQAJNYD0NhDCvVIxT66DCKWOzm oTGjWvEM0ID9NsNh9U9W9g+mTzHjn6UbKUO6Jz++jtj82kqZZbEMjdTpXUa4YrxJ yRxAjtfGVnpwHpNKItdnu2oWZBaRadKgzHxUVT2BoNHGYmxmclmwjiw3A0AaowDJ T9FaCQwv/0HIgWJpQIPSaBESo7yau9PkDSkGezMtc8fbFQSvIPOFaVlqmX+K5Cxo sfCH+d1XHraWQnVHqE0t3I1zArjgiwma2L/nrXYVXmcTo4CPxxsP92JQDiXjVIpP akvCfEeaMhTcxIHP/8a7jfU6yVR9QB3gj4/4jQEuBaHGOUsi5ZqGKUt77hH/hZTu dz9Jq/bpeDT7WUoGq30/P1zF5lGQYv8ZEj4YyU0YiHWRzldh/vWNxL/t175z8yEy O6aDNDk1xQzY+veZ8Hli6HxrRjK+VpIAxO/Y2z+act1vG08W2V+vJWuN2EYaBSB9 wLy9EtFGsQQgZlAbbFl87ZelxCIC4InPDEkHKFjBhzT1O3Sx9Z/e+X1UBgDz1Jqn J3YR/4Webwat6DyyBnFqu4L0DQZZYzzr+H4fvMchwYQzL2QFeYdR9LlDWGZdo4Pb RNrCjPZ0PE3T+CF36p/CU33F/j3XJU1TQC3s1sUE4aejXfFXy9Y7IN5ygJWctI/R qc8bQyN3ZTg7ovBW0Rzx =eVFH -----END PGP SIGNATURE----- --MzdA25v054BPvyZa-- --===============5223413368621346273== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline --===============5223413368621346273==--