From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: DT DMA channel binding for Tegra I2S Date: Fri, 25 Nov 2011 16:09:09 +0000 Message-ID: <20111125160908.GF5315@opensource.wolfsonmicro.com> References: <74CDBE0F657A3D45AFBB94109FB122FF174F08C803@HQMAIL01.nvidia.com> <4ECD6BA4.1010607@gmail.com> <74CDBE0F657A3D45AFBB94109FB122FF174F08C881@HQMAIL01.nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Rob Herring Cc: Stephen Warren , "Grant Likely (grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org)" , "devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org" , "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: devicetree@vger.kernel.org On Fri, Nov 25, 2011 at 09:55:23AM -0600, Rob Herring wrote: > Although, I think you are possibly missing some other properties for > i2s mode like word size and master/slave mode. I think the ideal case > is that a single ASoC platform driver for DT could handle multiple > SoCs. No. You're not going to be able to get a single binding which handles the setup for all systems based off a given SoC let alone multiple SoCs. It is possible to come up with some subsets which work over multiple boards but that's going to be outside the binding for the I2S controller and in a board audio hardware binding for the subset. This has been discussed repeatedly, we really need to work out how to educate device tree people about this stuff, it gets *very* repetitive having the discussion over and over again.