From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754562AbbINNPF (ORCPT ); Mon, 14 Sep 2015 09:15:05 -0400 Received: from foss.arm.com ([217.140.101.70]:46039 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752158AbbINNPC (ORCPT ); Mon, 14 Sep 2015 09:15:02 -0400 Date: Mon, 14 Sep 2015 14:14:48 +0100 From: Mark Rutland To: Punit Agrawal Cc: "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" , Sudeep Holla , "linux-pm@vger.kernel.org" , "lm-sensors@lm-sensors.org" , Liviu Dudau , "edubezval@gmail.com" , "linux@roeck-us.net" , "linux-kernel@vger.kernel.org" , "robh+dt@kernel.org" Subject: Re: [PATCH v3 1/5] Documentation: add DT bindings for ARM SCPI sensors Message-ID: <20150914131448.GC7002@leverpostej> References: <1442235619-4029-1-git-send-email-punit.agrawal@arm.com> <1442235619-4029-2-git-send-email-punit.agrawal@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1442235619-4029-2-git-send-email-punit.agrawal@arm.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 14, 2015 at 02:00:14PM +0100, Punit Agrawal wrote: > The System Control Processor (SCP) provides access to SoC sensors via > the System Control and Power Interface (SCPI) Message Protocol. Add > bindings to allow probing of these sensors. Also support referencing > of the sensors for setting up thermal zones via the thermal DT > bindings. > > Signed-off-by: Punit Agrawal > Cc: Rob Herring > Cc: Mark Rutland > Cc: Sudeep Holla > --- > Documentation/devicetree/bindings/arm/arm,scpi.txt | 15 +++++++++++++++ > 1 file changed, 15 insertions(+) > > diff --git a/Documentation/devicetree/bindings/arm/arm,scpi.txt b/Documentation/devicetree/bindings/arm/arm,scpi.txt > index f002460..af66f7f 100644 > --- a/Documentation/devicetree/bindings/arm/arm,scpi.txt > +++ b/Documentation/devicetree/bindings/arm/arm,scpi.txt > @@ -72,8 +72,18 @@ Required sub-node properties: > - compatible : should be "arm,juno-scp-shmem" for Non-secure SRAM based > shared memory on Juno platforms > > +Sensor bindings for the sensors based on SCPI Message Protocol > +-------------------------------------------------------------- > +SCPI provides an API to access the various sensors on the SoC. > + > +Required properties: > +- compatible : should be "arm,scpi-sensors". > +- #thermal-sensor-cells: should be set to 1. This property follows the > + thermal device tree bindings[2]. You need to specify what the valid values for this cell are. Mark. > + > [0] http://infocenter.arm.com/help/topic/com.arm.doc.dui0922b/index.html > [1] Documentation/devicetree/bindings/clock/clock-bindings.txt > +[2] Documentation/devicetree/bindings/thermal/thermal.txt > > Example: > > @@ -122,6 +132,11 @@ scpi_protocol: scpi@2e000000 { > clock-output-names = "pxlclk0", "pxlclk1"; > }; > }; > + > + scpi_sensors0: sensors { > + compatible = "arm,scpi-sensors"; > + #thermal-sensor-cells = <1>; > + }; > }; > > cpu@0 { > -- > 2.5.0 >