From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755244Ab3JaPly (ORCPT ); Thu, 31 Oct 2013 11:41:54 -0400 Received: from hqemgate16.nvidia.com ([216.228.121.65]:7899 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751609Ab3JaPlw (ORCPT ); Thu, 31 Oct 2013 11:41:52 -0400 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Thu, 31 Oct 2013 08:41:13 -0700 Date: Thu, 31 Oct 2013 17:41:42 +0200 From: Peter De Schrijver To: Stephen Warren CC: Mike Turquette , Prashant Gaikwad , Mark Zhang , Thierry Reding , "linux-arm-kernel@lists.infradead.org" , "linux-tegra@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] clk: tegra: use pll_ref as the pll_e parent Message-ID: <20131031154142.GX22111@tbergstrom-lnx.Nvidia.com> References: <1383093707-10312-1-git-send-email-pdeschrijver@nvidia.com> <527128B5.2020101@wwwdotorg.org> <20131030221833.GQ22111@tbergstrom-lnx.Nvidia.com> <52718D1B.6030106@wwwdotorg.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <52718D1B.6030106@wwwdotorg.org> X-NVConfidentiality: public User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 30, 2013 at 11:50:03PM +0100, Stephen Warren wrote: > On 10/30/2013 04:18 PM, Peter De Schrijver wrote: > > On Wed, Oct 30, 2013 at 04:41:41PM +0100, Stephen Warren wrote: > >> On 10/29/2013 06:41 PM, Peter De Schrijver wrote: > >>> Use pll_ref instead of pll_re_vco as the pll_e parent on Tegra114 and > >>> Tegra124. Also add a pll_ref table entry for pll_e for Tegra114. > >> > >> Why? What benefit does this give, or what bug does this fix? > > > > Otherrwise Tegra114 will crash on boot. > > Sigh. For what reason? pll_re_vco having an unsupported rate of 300Mhz. My guess is that it depends on the bootloader if you will see this. I'm fairly sure I verified this on my dalmore in helsinki and it worked, but it failed on Paul's test setup. Cheers, Peter.