From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rajendra Nayak Subject: Re: RX51: kernel message spam from CPUfreq driver Date: Mon, 12 Aug 2013 11:59:28 +0530 Message-ID: <520880C8.1040907@ti.com> References: <20130811141336.GA24034@earth.universe> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from comal.ext.ti.com ([198.47.26.152]:42276 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754576Ab3HLG3e (ORCPT ); Mon, 12 Aug 2013 02:29:34 -0400 In-Reply-To: <20130811141336.GA24034@earth.universe> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Sebastian Reichel Cc: linux-omap@vger.kernel.org, Santosh Shilimkar , Tony Lindgren On Sunday 11 August 2013 07:43 PM, Sebastian Reichel wrote: > Hi, > > On RX-51 (Nokia N900) the (mainline) kernel constantly outputs the > following message about 2-3x per second since some releases: > > [ 1038.314514] cpu cpu0: CPUfreq: Cannot find matching frequency for 125000000 > > (The message is from drivers/cpufreq/omap-cpufreq.c, line 100) > > This is really annoying and makes debug output without a "grep -v" > basically useless. Can you give me some hints how to solve the > problem? Whats the system clock frequency used on RX-51? I guess omap2_dpll_round_rate() for some reason thinks that with the given sys clock its not possible to lock the DPLL at 125Mhz. If you can send the debug logs from omap2_dpll_round_rate() that should probably help know whats going wrong. > > -- Sebastian >