From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren Subject: Re: [PATCH 2/2] clk: tegra: add ac97 controller clock Date: Wed, 30 Jan 2013 11:27:36 -0700 Message-ID: <51096618.3000100@wwwdotorg.org> References: <1359325055-5160-1-git-send-email-dev@lynxeye.de> <1359325055-5160-2-git-send-email-dev@lynxeye.de> <5106CE6D.9030008@wwwdotorg.org> <1359401144.1558.11.camel@tellur> <5106EB03.6080606@wwwdotorg.org> <20130130093525.GC2364@tbergstrom-lnx.Nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20130130093525.GC2364-Rysk9IDjsxmJz7etNGeUX8VPkgjIgRvpAL8bYrjMMd8@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Peter De Schrijver Cc: Lucas Stach , "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Prashant Gaikwad List-Id: linux-tegra@vger.kernel.org On 01/30/2013 02:35 AM, Peter De Schrijver wrote: >> >>> and also ac97 clock == pll_a_out0, so you can >>> just as well use the pll out in that case. >> >> I suspect that "ac97 clock == pll_a_out0" isn't categorically true; it's >> quite possible that the TRM simply doesn't document the mux >> register/field for the ac97 clock since the ac97 module is considered >> deprecated. The diagram at the end of section 5.2.3 "Audio Clocks" >> certainly implies that all of the i2s*, spdifout, and ac97 clocks have >> the same structure. > > It indeed does, but I can't find any reference to a mux control register for > ac97 in any document... For both these two issues, I'll try and track down the relevant HW engineers or other sources of documentation internally...