Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932692Ab3GWNaO (ORCPT ); Tue, 23 Jul 2013 09:30:14 -0400 Received: from cassiel.sirena.org.uk ([80.68.93.111]:43789 "EHLO cassiel.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932346Ab3GWNaM (ORCPT ); Tue, 23 Jul 2013 09:30:12 -0400 Date: Tue, 23 Jul 2013 14:29:48 +0100 From: Mark Brown To: Russell King - ARM Linux Cc: Jean-Francois Moine , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Rob Herring , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, devicetree-discuss@vger.kernel.org Message-ID: <20130723132948.GF9858@sirena.org.uk> References: <20130723104641.6ee0b9ec@armhf> <20130723125756.GZ9858@sirena.org.uk> <20130723132314.GU24642@n2100.arm.linux.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="OjlPywxCsLltMP9x" Content-Disposition: inline In-Reply-To: <20130723132314.GU24642@n2100.arm.linux.org.uk> X-Cookie: You will be awarded some great honor. User-Agent: Mutt/1.5.21 (2010-09-15) X-SA-Exim-Connect-IP: 94.175.92.69 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [PATCH] ARM: kirkwood: extend the kirkwood pcm/dma driver for DT usage X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:57:07 +0000) X-SA-Exim-Scanned: Yes (on cassiel.sirena.org.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2049 Lines: 49 --OjlPywxCsLltMP9x Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Jul 23, 2013 at 02:23:14PM +0100, Russell King - ARM Linux wrote: > On Tue, Jul 23, 2013 at 01:57:56PM +0100, Mark Brown wrote: > > This device has no registers or other hardware - this looks like a stub > > device which shouldn't be visible in DT but should instead be created by > > the I2S driver - look at how most of the other DT platforms using > > dmaengine work. > There is no separate DMA engine on this platform. dmaengine is totally > irrelevant to this hardware. The pattern for instantiating a DMA controller that's integrated into the DAI is the same as that where the DMA controller is a shared IP accessed via dmaengine so it's still useful to look at these platforms to see how to do the instnatiation. --OjlPywxCsLltMP9x Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.20 (GNU/Linux) iQIcBAEBAgAGBQJR7oVJAAoJELSic+t+oim9M40QAIpBsTnzY1l5HGweNibKYxph iXzOXZvvKqWTHGN4+Nel1c7zlQIGV8xgxOCpvx/OVXDAUbcVzfA6Jj6cFvg6RQ1U vomeUH5X7dnGKJRy9YEQjUEnAyFSE75MJDi2KcV7BcN6yXYKJ1H+OHbSMy+gOxJz Ius7RVI9zL7J+M/3dqbiT7Gr+qVCrKCnHUQmQRbHfDdDc4rD12tcQDljZMlUGQlV BEtLxkxhr4ST8Mq4PjcMbfF4Aqb4uXrR8sooai0ckmcPy14/VY3rKDabDTgWcGX7 8FREXHxkERgdzaFayUk8x2Mf+hUO4DnGsqyFBJ69lqJYd9+K7Qqlbj3IwYLaDrJE X0xB7zAD+DrVCSFwdFftMRPy4bvXBEXwDcSy3EZeG/o2nInWVmXG6MPauzQ15nBD 7uJ45h8ZoVs8P4ZdR5le+R+kInAV8j7OTgvi2H7sEJjZwwls7LDxx62HOWOfeZSo FcmpN65VuSjRzgR70sZ3H5/ErSQXhzk34Yzy4wv2JxPD7K7UUTScURIhCVQsiiXr rlc6Vt02hgKLTmRymPaviWtqX4HF+Ujee6TNp5ZgREaqhYMSWWrVAjn/pDyM0Vuv FxP1oeEbFH5Dm08VTcEfBawkaJxyoGH/GOgUGH4HLy+iYU9wYKVSsJ5m53zcXScn QJOHoeqYb6zTy9mR9E0E =dC3z -----END PGP SIGNATURE----- --OjlPywxCsLltMP9x-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/