[PATCH v3] arm64: dts: mt8183-kukui: Add tboard thermal zones

[Matthias Brugger]

On 04/06/2021 11:37, Ben Tseng wrote:
> From: Michael Kao <michael.kao at mediatek.com>
> 
> Add tboard thermal zones.
> The tboard thermal sensors are a kind of NTC sensors which are located
> on PCB board to correlate the temperature of the case (Tskin).
> 
> pull-up voltage: 1800 mv
> pull-up resistor: 75K
> 
> Vsense = pull-up voltage * Rntc / ( pull-up resistor + Rntc )
> AuxIn = Vsense * 4096 / 1500
> 
> Signed-off-by: Michael Kao <michael.kao at mediatek.com>
> Signed-off-by: Ben Tseng <ben.tseng at mediatek.com>
> Tested-by: Hsin-Yi Wang <hsinyi at chromium.org>
> 

Applied to v5.13-next/dts64

Thanks!

> ---
> Change in v3:
>         - Modify Tboard to tbaord in mt8183-kukui.dtsi
>         - Add more description about tboard thermal sensor
> 
> Change in v2:
>         - Rebase to kernel-v5.13-rc1
>         - Resend
> ---
>  arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 14 ++++++++++++++
>  arch/arm64/boot/dts/mediatek/mt8183.dtsi       |  2 +-
>  2 files changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
> index ff56bcf..601f866 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
> @@ -847,6 +847,20 @@
>  	status = "okay";
>  };
>  
> +&thermal_zones {
> +	tboard1 {
> +		polling-delay = <1000>; /* milliseconds */
> +		polling-delay-passive = <0>; /* milliseconds */
> +		thermal-sensors = <&tboard_thermistor1>;
> +	};
> +
> +	tboard2 {
> +		polling-delay = <1000>; /* milliseconds */
> +		polling-delay-passive = <0>; /* milliseconds */
> +		thermal-sensors = <&tboard_thermistor2>;
> +	};
> +};
> +
>  &u3phy {
>  	status = "okay";
>  };
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index c5e822b..4173a5d 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -673,7 +673,7 @@
>  			nvmem-cell-names = "calibration-data";
>  		};
>  
> -		thermal-zones {
> +		thermal_zones: thermal-zones {
>  			cpu_thermal: cpu_thermal {
>  				polling-delay-passive = <100>;
>  				polling-delay = <500>;
>