Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753147AbdHIKNJ (ORCPT ); Wed, 9 Aug 2017 06:13:09 -0400 Received: from mail-pg0-f54.google.com ([74.125.83.54]:34297 "EHLO mail-pg0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753115AbdHIKNE (ORCPT ); Wed, 9 Aug 2017 06:13:04 -0400 Date: Wed, 9 Aug 2017 15:43:01 +0530 From: Viresh Kumar To: Sudeep Holla Cc: ALKML , LKML , DTML , Roy Franz , Harb Abdulhamid , Nishanth Menon , Arnd Bergmann , Loc Ho , Alexey Klimov , Ryan Harkin , Jassi Brar , "Rafael J. Wysocki" , linux-pm@vger.kernel.org Subject: Re: [PATCH v2 18/18] cpufreq: scmi: add support for fast frequency switching Message-ID: <20170809101301.GB29383@vireshk-i7> References: <1501857104-11279-1-git-send-email-sudeep.holla@arm.com> <1501857104-11279-19-git-send-email-sudeep.holla@arm.com> <20170809042825.GI28857@vireshk-i7> <0f89f543-39a9-30a5-4976-0c447f5fe843@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0f89f543-39a9-30a5-4976-0c447f5fe843@arm.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 371 Lines: 10 On 09-08-17, 11:09, Sudeep Holla wrote: > Firmware needs to serialize or override based on the timing of the two > consecutive requests. Maybe add a comment over that routine and detail its working a bit? Like its not synchronous, etc. I expect that you would also add a callback with SCMI, so that the cpufreq driver is notified when frequency is changed ? -- viresh