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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@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1582330132-13461-1-git-send-email-Anson.Huang@nxp.com
This commit is contained in:
Anson Huang 2020-02-22 08:08:48 +08:00 committed by Daniel Lezcano
parent 554fdbaf19
commit 7dc6ffbd79
1 changed files with 16 additions and 0 deletions
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16
Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
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@ -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>;
};
};
};