From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-eopbgr40080.outbound.protection.outlook.com ([40.107.4.80]:7764 "EHLO EUR03-DB5-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725890AbfBTGxf (ORCPT ); Wed, 20 Feb 2019 01:53:35 -0500 From: Anson Huang Subject: [PATCH V7 1/4] dt-bindings: fsl: scu: add thermal binding Date: Wed, 20 Feb 2019 06:53:30 +0000 Message-ID: <1550645332-2907-1-git-send-email-Anson.Huang@nxp.com> Content-Language: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org To: "mark.rutland@arm.com" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , "festevam@gmail.com" , "catalin.marinas@arm.com" , "will.deacon@arm.com" , "rui.zhang@intel.com" , "edubezval@gmail.com" , "daniel.lezcano@linaro.org" , Aisheng Dong , "ulf.hansson@linaro.org" , Daniel Baluta , "horms+renesas@verge.net.au" , Andy Gross , "heiko@sntech.de" , "arnd@arndb.de" , "olof@lixom.net" , "bjorn.andersson@linaro.org" , "jagan@amarulasolutions.com" , "enric.balletbo@collabora.com" , "marc.w.gonzalez@free.fr" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-pm@vger.kernel.org" Cc: dl-linux-imx List-ID: NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as system controller, the system controller is in charge of system power, clock and thermal sensors etc. management, Linux kernel has to communicate with system controller via MU (message unit) IPC to get temperature from thermal sensors, this patch adds binding doc for i.MX system controller thermal driver. Signed-off-by: Anson Huang Reviewed-by: Rob Herring --- Changes since V6: - put "imx,sensor-resource-id" property in thermal zone nodes. --- .../devicetree/bindings/arm/freescale/fsl,scu.txt | 27 ++++++++++++++++++= ++++ 1 file changed, 27 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/= Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt index 72d481c..ad96881 100644 --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -122,6 +122,27 @@ RTC bindings based on SCU Message Protocol Required properties: - compatible: should be "fsl,imx8qxp-sc-rtc"; =20 +Thermal bindings based on SCU Message Protocol +------------------------------------------------------------ + +Required properties: +- compatible : Must be "fsl,imx-sc-thermal"; +- tsens-num : Total number of thermal sensors supported; +- #thermal-sensor-cells : Should be 1. See + Documentation/devicetree/bindings/thermal/thermal.txt + for a description. + +Required properties for thermal zone nodes: +- imx,sensor-resource-id : This property should be defined in each thermal= zone + of thermal-zones node, it passes each thermal zone's + resource id for thermal driver to get temperature via + SCU IPC. + + For thermal zone nodes, please refer to below binding + doc for details: + +[1] Documentation/devicetree/bindings/thermal/thermal.txt + Example (imx8qxp): ------------- lsio_mu1: mailbox@5d1c0000 { @@ -168,6 +189,12 @@ firmware { rtc: rtc { compatible =3D "fsl,imx8qxp-sc-rtc"; }; + + tsens: thermal-sensor { + compatible =3D "fsl,imx8qxp-sc-thermal"; + tsens-num =3D <1>; + #thermal-sensor-cells =3D <1>; + }; }; }; =20 --=20 2.7.4