From mboxrd@z Thu Jan 1 00:00:00 1970 From: Barry Song <21cnbao-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Subject: Re: [RFC 1/2] ARM:Tegra: Device Tree Support: Initialize the audio card from the device tree. Date: Fri, 3 Jun 2011 09:19:59 +0800 Message-ID: References: <20110527205444.21000.90209.stgit@riker> <20110527205706.21000.34832.stgit@riker> <20110602160445.GA8373@ponder.secretlab.ca> <20110602213656.GB10532@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20110602213656.GB10532-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Russell King - ARM Linux Cc: Grant Likely , devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org, John Bonesio , linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, olofj-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org 2011/6/3 Russell King - ARM Linux : > On Thu, Jun 02, 2011 at 10:04:45AM -0600, Grant Likely wrote: >> Right now we can't do dynamic registration for on-chip devices in a >> lot of cases because we don't have the infrastructure to hook up the >> associated struct clks. > > I've been wondering about this, and I don't see it as a blocking prob= lem > as you seem to be. > > I assume platform devices have stable names when they're created from > the device tree? =C2=A0If yes, there's no problem having the DT start= to > describe the SoC specific devices _today_ - all that the clk API usin= g > clkdev requires is a stable device name. when i write the following nodes in dts, uart0: uart@0xb0060000 { compatible =3D "sirf,uart"; ... } uart1: uart@0xb0050000 { compatible =3D "sirf,uart"; ... } uart2: uart@0xb0070000 { compatible =3D "sirf,uart"; ... } then create these platform devices by of_platform_xxx things, i get some platform devices like the below. b0060000.uart b0050000.uart b0070000.uart so these are the "stable names" you are talking about? or something els= e? >