On Thu, Feb 21, 2019 at 06:38:30AM +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 <Anson.Huang@xxxxxxx>
> Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> ---
> Changes since V7:
> - remove unused property "tsens-num";
> - improve the compatible description;
> - update examples according to latest dts file.
> ---
> .../devicetree/bindings/arm/freescale/fsl,scu.txt | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> index 72d481c..d89147e 100644
> --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> @@ -122,6 +122,19 @@ 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.
> +
> +- imx,sensor-resource-id: Property array to specify each thermal zone's sensor resource ID.
If this is an array...
> +
> Example (imx8qxp):
> -------------
> lsio_mu1: mailbox@5d1c0000 {
> @@ -168,6 +181,12 @@ firmware {
> rtc: rtc {
> compatible = "fsl,imx8qxp-sc-rtc";
> };
> +
> + tsens: thermal-sensor {
> + compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
> + #thermal-sensor-cells = <0>;
> + imx,sensor-resource-id = <IMX_SC_R_SYSTEM>;
then this example should have an array, to be better express how this is
supposed to work. Can you please resend this with an array instead?
> + };
> };
> };
>
> --
> 2.7.4
>
