From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754754AbbINNDd (ORCPT ); Mon, 14 Sep 2015 09:03:33 -0400 Received: from fw-tnat.cambridge.arm.com ([217.140.96.140]:56356 "EHLO cam-smtp0.cambridge.arm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750944AbbINNDc (ORCPT ); Mon, 14 Sep 2015 09:03:32 -0400 From: Punit Agrawal To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Cc: sudeep.holla@arm.com, linux-pm@vger.kernel.org, lm-sensors@lm-sensors.org, liviu.dudau@arm.com, edubezval@gmail.com, mark.rutland@arm.com, linux@roeck-us.net, linux-kernel@vger.kernel.org, robh+dt@kernel.org, Punit Agrawal Subject: [PATCH v3 1/5] Documentation: add DT bindings for ARM SCPI sensors Date: Mon, 14 Sep 2015 14:00:14 +0100 Message-Id: <1442235619-4029-2-git-send-email-punit.agrawal@arm.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1442235619-4029-1-git-send-email-punit.agrawal@arm.com> References: <1442235619-4029-1-git-send-email-punit.agrawal@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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]. + [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