linux-kernel - [PATCH V16 1/5] dt-bindings: fsl: scu: add thermal binding

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Message-Id: <1582330132-13461-1-git-send-email-Anson.Huang@nxp.com>
Date:   Sat, 22 Feb 2020 08:08:48 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        catalin.marinas@....com, will@...nel.org, rui.zhang@...el.com,
        daniel.lezcano@...aro.org, amit.kucheria@...durent.com,
        aisheng.dong@....com, linux@...ck-us.net,
        srinivas.kandagatla@...aro.org, krzk@...nel.org,
        fugang.duan@....com, peng.fan@....com, daniel.baluta@....com,
        bjorn.andersson@...aro.org, olof@...om.net, dinguyen@...nel.org,
        leonard.crestez@....com, marcin.juszkiewicz@...aro.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-pm@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH V16 1/5] 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 <Anson.Huang@....com>
Reviewed-by: Rob Herring <robh@...nel.org>
Reviewed-by: Dong Aisheng <aisheng.dong@....com>
---
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 e07735a8..7f42cc3 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>;
+		};
 	};
 };
 
-- 
2.7.4