From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH v2] dt: psci: Update DT bindings to support hierarchical PSCI states Date: Wed, 3 Jan 2018 13:42:32 -0600 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 Return-path: Content-Disposition: inline In-Reply-To: <1514472037-25969-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Ulf Hansson Cc: Mark Rutland , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Sudeep Holla , Lorenzo Pieralisi , Brendan Jackman , Lina Iyer , Kevin Hilman , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org 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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html