[RESEND,V11,1/4] dt-bindings: fsl: scu: add thermal binding

Commit Message

Anson Huang April 10, 2019, 7:43 a.m. UTC

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 <[e-mail]>
---
Changes since V10:
	- remove property "imx,sensor-resource-id".
---
 .../devicetree/bindings/arm/freescale/fsl,scu.txt        | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

Comments

Rob Herring April 10, 2019, 1:46 p.m. UTC | #1

On Wed, Apr 10, 2019 at 07:43:04AM +0000, Anson Huang wrote:
> 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 <[e-mail]>
> ---
> Changes since V10:
> 	- remove property "imx,sensor-resource-id".
> ---
>  .../devicetree/bindings/arm/freescale/fsl,scu.txt        | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)

Reviewed-by: Rob Herring <[e-mail]>

Patch

diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
index 72d481c..023fb5c 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
@@ -122,6 +122,17 @@  RTC bindings based on SCU Message Protocol
 Required properties:
 - compatible: should be "fsl,imx8qxp-sc-rtc";
 
+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):
 -------------
 lsio_mu1: mailbox@5d1c0000 {
@@ -168,6 +179,11 @@  firmware {
 		rtc: rtc {
 			compatible = "fsl,imx8qxp-sc-rtc";
 		};
+
+		tsens: thermal-sensor {
+			compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
+			#thermal-sensor-cells = <1>;
+		};
 	};
 };