From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anson.Huang@nxp.com Subject: [PATCH V14 1/5] dt-bindings: fsl: scu: add thermal binding Date: Mon, 10 Jun 2019 10:52:50 +0800 Message-ID: <20190610025254.23940-1-Anson.Huang@nxp.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: robh+dt@kernel.org, mark.rutland@arm.com, corbet@lwn.net, 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@nxp.com, ulf.hansson@linaro.org, peng.fan@nxp.com, mchehab+samsung@kernel.org, linux@roeck-us.net, daniel.baluta@nxp.com, maxime.ripard@bootlin.com, olof@lixom.net, jagan@amarulasolutions.com, horms+renesas@verge.net.au, leonard.crestez@nxp.com, bjorn.andersson@linaro.org, dinguyen@kernel.org, enric.balletbo@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Cc: Linux-imx@nxp.com List-Id: devicetree@vger.kernel.org From: Anson Huang 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 --- No change. --- .../devicetree/bindings/arm/freescale/fsl,scu.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt index a575e42..fc3844e 100644 --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -155,6 +155,17 @@ Required properties: Optional properties: - timeout-sec: contains the watchdog timeout in seconds. +Thermal bindings based on SCU Message Protocol +------------------------------------------------------------ + +Required properties: +- compatible: Should be : + "fsl,imx8qxp-sc-thermal" + followed by "fsl,imx-sc-thermal"; + +- #thermal-sensor-cells: See Documentation/devicetree/bindings/thermal/thermal.txt + for a description. + Example (imx8qxp): ------------- aliases { @@ -222,6 +233,11 @@ firmware { compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt"; timeout-sec = <60>; }; + + tsens: thermal-sensor { + compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal"; + #thermal-sensor-cells = <1>; + }; }; }; -- 2.7.4