Subject: Re: [PATCH V4 4/4] ARM64: dts: imx: add i.MX8QXP thermal support

From: Eduardo Valentin <[email-masked]>
Date: Thu, 29 Nov 2018 08:50:41 -0800

On Thu, Nov 29, 2018 at 02:37:47AM +0000, Anson Huang wrote:
> Add i.MX8QXP CPU thermal zone support.
> 
> Signed-off-by: Anson Huang <[email-masked]>
> ---
> ChangeLog:
> V3->V4:
>   *move the tsens node to inside of SCU node as it is belonging to SCU.
> ---
>  arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 27 +++++++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> index 9b08688..48f622c 100644
> --- a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> @@ -9,6 +9,7 @@
>  #include <dt-bindings/firmware/imx/rsrc.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/pinctrl/pads-imx8qxp.h>
> +#include <dt-bindings/thermal/thermal.h>
>  
>  #include "imx8-ca35.dtsi"
>  
> @@ -87,6 +88,12 @@
>  		rtc: rtc {
>  			compatible = "fsl,imx8qxp-sc-rtc";
>  		};
> +
> +		tsens: thermal-sensor {
> +			compatible = "fsl,imx8qxp-sc-thermal";
> +			tsens-num = <1>;
> +			#thermal-sensor-cells = <1>;
> +		};
>  	};
>  
>  	adma_subsys: bus@59000000 {
> @@ -410,4 +417,24 @@
>  		#size-cells = <1>;
>  		ranges = <0x5f000000 0x0 0x5f000000 0x1000000>;
>  	};
> +
> +	thermal_zones: thermal-zones {
> +		cpu-thermal0 {
> +			polling-delay-passive = <250>;
> +			polling-delay = <2000>;
> +			thermal-sensors = <&tsens 355>;
> +			trips {
> +				cpu_alert0: trip0 {
> +					temperature = <107000>;
> +					hysteresis = <2000>;
> +					type = "passive";

Passive, but yet no cooling maps?

> +				};
> +				cpu_crit0: trip1 {
> +					temperature = <127000>;
> +					hysteresis = <2000>;
> +					type = "critical";
> +				};
> +			};
> +		};
> +	};
>  };
> -- 
> 2.7.4
> 

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