[PATCH V13 1/5] dt-bindings: fsl: scu: add thermal binding

From: Anson . Huang
Date: Mon May 27 2019 - 23:18:51 EST


From: Anson Huang <Anson.Huang@xxxxxxx>

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@xxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
No change, just rebase the patch to top of linux-next and based on my watchdog patch:
https://patchwork.kernel.org/patch/10962183/
---
.../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