Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753192AbaBYDd6 (ORCPT ); Mon, 24 Feb 2014 22:33:58 -0500 Received: from tx2ehsobe002.messaging.microsoft.com ([65.55.88.12]:2619 "EHLO tx2outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751660AbaBYDdy (ORCPT ); Mon, 24 Feb 2014 22:33:54 -0500 X-Forefront-Antispam-Report: CIP:70.37.183.190;KIP:(null);UIP:(null);IPV:NLI;H:mail.freescale.net;RD:none;EFVD:NLI X-SpamScore: -2 X-BigFish: VS-2(zz98dI1432Izz1f42h2148h208ch1ee6h1de0h1fdah2073h2146h1202h1e76h2189h1d1ah1d2ah21bch1fc6hzzz2dh2a8h839h944hd25hd2bhf0ah1220h1288h12a5h12a9h12bdh137ah13b6h1441h1504h1537h153bh162dh1631h1758h18e1h1946h19b5h1ad9h1b0ah1b2fh2222h224fh1fb3h1d0ch1d2eh1d3fh1dfeh1dffh1fe8h1ff5h209eh2216h22d0h2336h2438h2461h2487h24ach24d7h2516h2545h255eh1155h) Date: Tue, 25 Feb 2014 11:13:14 +0800 From: Nicolin Chen To: Mark Brown CC: "Austin, Brian" , "Handrigan, Paul" , "robh+dt@kernel.org" , "pawel.moll@arm.com" , "mark.rutland@arm.com" , "ijc+devicetree@hellion.org.uk" , "galak@codeaurora.org" , "rob@landley.net" , Liam Girdwood , "grant.likely@linaro.org" , "devicetree@vger.kernel.org" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "alsa-devel@alsa-project.org" Subject: Re: [PATCH] ASoC: cs42888: Add codec driver support Message-ID: <20140225031313.GA7343@MrMyself> References: <1393224929-7555-1-git-send-email-Guangyu.Chen@freescale.com> <20140224113011.GE25940@sirena.org.uk> <20140224160648.GC6132@MrMyself> <20140225000027.GI25940@sirena.org.uk> <20140225023840.GB7229@MrMyself> <20140225030947.GO25940@sirena.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20140225030947.GO25940@sirena.org.uk> User-Agent: Mutt/1.5.21 (2010-09-15) X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Feb 25, 2014 at 12:09:47PM +0900, Mark Brown wrote: > On Tue, Feb 25, 2014 at 10:38:41AM +0800, Nicolin Chen wrote: > > > Hmm...my words might not be so clear last time: we have to handle the dividers > > of ESAI in ESAI driver because the dividers is in the ESAI's IP, not in the SoC > > clock controlling unit. So it's hard to get them visible in the clock tree. > > We should be able to arrange to have the ESAI be a clock provider > shouldn't we? If the clocks need to interface to other things (and they > do) then we should be able to use the standard interface we have to > clocks. Excuse me, I think I just don't get the approach how to use clock API to standardize the MCLK derived from ESAI IP: it's surely not a fixed-clock so we couldn't register in DT and it's not SoC internal clock which means we couldn't register it in the SoC clock driver either. Could you please shed me some light on it? Thank you, Nicolin Chen -- 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/