From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: Re: [Discussion] Performance levels of power domains Date: Thu, 27 Oct 2016 17:22:02 -0700 Message-ID: <20161028002202.GM26139@codeaurora.org> References: <20161026111642.GM9162@vireshk-i7> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:34950 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S942538AbcJ1A3c (ORCPT ); Thu, 27 Oct 2016 20:29:32 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Sudeep Holla Cc: Viresh Kumar , "linux-pm@vger.kernel.org" , Lists linaro-kernel , Michael Turquette , "Rafael J. Wysocki" , Mark Brown , "Nayak, Rajendra" , Georgi Djakov , Bjorn Andersson On 10/26, Sudeep Holla wrote: > > > On 26/10/16 12:16, Viresh Kumar wrote: > >On 26-10-16, 12:09, Sudeep Holla wrote: > > [...] > > >>I am mainly interested as there are efforts to standardize these > >>communication with M3 and there's WIP protocol development[1]. It would > >>be good to see if this user-case is also considered. > > > >What do you mean by that ? > > Basically I wanted to know more details so that such system are also > considered(I agree it may not have any impact on the protocol at all, > but still good to consider them) when designing this new SCMI protocol. > There are a couple different wire protocols used to communicate with the RPM on these platforms. The first one is at drivers/mfd/qcom_rpm.c, and the second one is at drivers/soc/qcom/smd-rpm.c. Bjorn upstreamed these drivers based on the codeaurora sources. -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project