From 7dc6ffbd79c22b3a8433290a692c57e1917575a4 Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Sat, 22 Feb 2020 08:08:48 +0800 Subject: dt-bindings: fsl: scu: add thermal binding 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 Reviewed-by: Dong Aisheng Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/1582330132-13461-1-git-send-email-Anson.Huang@nxp.com --- .../devicetree/bindings/arm/freescale/fsl,scu.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt') diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt index e07735a8c2c7..7f42cc37038e 100644 --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -166,6 +166,17 @@ Required properties: followed by "fsl,imx-sc-key"; - linux,keycodes: See Documentation/devicetree/bindings/input/keys.txt +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 { @@ -238,6 +249,11 @@ 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>; + }; }; }; -- cgit v1.2.3-59-g8ed1b