Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756136Ab3H2K2G (ORCPT ); Thu, 29 Aug 2013 06:28:06 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:37293 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753134Ab3H2K2D (ORCPT ); Thu, 29 Aug 2013 06:28:03 -0400 Message-ID: <521F2112.5070501@ti.com> Date: Thu, 29 Aug 2013 15:53:14 +0530 From: Sekhar Nori User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130803 Thunderbird/17.0.8 MIME-Version: 1.0 To: Viresh Kumar CC: "linux-pm@vger.kernel.org" , "cpufreq@vger.kernel.org" , Linux Kernel Mailing List , "linux-arm-kernel@lists.infradead.org" , Benjamin Herrenschmidt , David Miller , Eric Miao , Jesper Nilsson , John Crispin , , , Mikael Starvik , Paul Mundt , , Miao Steven , Dave Jones Subject: Re: [Query] CPUFreq: Does these machines have separate clock domains for CPUs? References: In-Reply-To: Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 764 Lines: 19 On Thursday 29 August 2013 03:45 PM, Viresh Kumar wrote: > Hi, > > I have been doing some CPUFreq cleanup work and > wanted to know if the below mentioned machines have separate > clock domains for their CPUs or all share the same domain? On DaVinci (DA850), there is an async domain available to keep some peripheral clocks insulated from cpu frequency changes. But there are a bunch of other clocks which do get affected by CPU frequency change (they need to run at a fixed ratio to CPU frequency). Thanks, Sekhar -- 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/