From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751406AbeACTmg (ORCPT + 1 other); Wed, 3 Jan 2018 14:42:36 -0500 Received: from mail-oi0-f68.google.com ([209.85.218.68]:44111 "EHLO mail-oi0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750831AbeACTme (ORCPT ); Wed, 3 Jan 2018 14:42:34 -0500 X-Google-Smtp-Source: ACJfBosOHeoLaW527cppqXxzroV3GaaA3NXXi4dCzuiq0QIOzres9cdJESsOdR7NKu7ZWZFmr+C0RA== Date: Wed, 3 Jan 2018 13:42:32 -0600 From: Rob Herring To: Ulf Hansson Cc: Mark Rutland , devicetree@vger.kernel.org, Sudeep Holla , Lorenzo Pieralisi , Brendan Jackman , Lina Iyer , Kevin Hilman , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2] dt: psci: Update DT bindings to support hierarchical PSCI states Message-ID: <20180103194232.nsa2tko6nooybkuj@rob-hp-laptop> References: <1514472037-25969-1-git-send-email-ulf.hansson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1514472037-25969-1-git-send-email-ulf.hansson@linaro.org> User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: On Thu, Dec 28, 2017 at 03:40:37PM +0100, Ulf Hansson wrote: > From: Lina Iyer > > Update DT bindings to represent hierarchical CPU and CPU domain idle states > for PSCI. Also update the PSCI examples to clearly show how flattened and > hierarchical idle states can be represented in DT. > > Signed-off-by: Lina Iyer > Signed-off-by: Ulf Hansson > --- > > Changes in v2: > - Addressed comments from Rob. > - Updated some labels in the examples to get more consistency. > > For your information, I have picked up the work from Lina Iyer around the so > called CPU cluster idling series [1,2] and I working on new versions. However, > I decided to post the updates to the PSCI DT bindings first, as they will be > needed to be agreed upon before further changes can be done to the PSCI firmware > driver. > > Note, these bindings have been discussed over and over again, at LKML, but > especially also at various Linux conferences, like LPC and Linaro Connect. We > finally came to a conclusion and the changes we agreed upon, should be reflected > in this update. > > Of course, it's a while ago since the latest discussions, but hopefully people > don't have too hard time to remember. > > Kind regards > Uffe > > [1] > https://www.spinics.net/lists/arm-kernel/msg566200.html > > [2] > https://lwn.net/Articles/716300/ > > --- > Documentation/devicetree/bindings/arm/psci.txt | 152 +++++++++++++++++++++++++ > 1 file changed, 152 insertions(+) Reviewed-by: Rob Herring I'd like to see some R-by by some of the ARM folks too. Rob