[PATCH v2 2/2] arm64: dts: mediatek: add thermal sensor support on mt7981

[Krzysztof Kozlowski]

On Wed, Jul 02, 2025 at 11:48:30PM +0200, Aleksander Jan Bajkowski wrote:
> The temperature sensor in the MT7981 is same as in the MT7986.
> 
> Signed-off-by: Aleksander Jan Bajkowski <olek2 at wp.pl>
> ---
>  arch/arm64/boot/dts/mediatek/mt7981b.dtsi | 32 ++++++++++++++++++++++-
>  1 file changed, 31 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
> index 5cbea9cd411f..759b9e8059d9 100644
> --- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
> @@ -76,7 +76,7 @@ watchdog: watchdog at 1001c000 {
>  			#reset-cells = <1>;
>  		};
>  
> -		clock-controller at 1001e000 {
> +		apmixedsys: clock-controller at 1001e000 {
>  			compatible = "mediatek,mt7981-apmixedsys";
>  			reg = <0 0x1001e000 0 0x1000>;
>  			#clock-cells = <1>;
> @@ -184,6 +184,32 @@ spi at 1100b000 {
>  			status = "disabled";
>  		};
>  
> +		thermal at 1100c800 {
> +			compatible = "mediatek,mt7981-thermal",
> +				     "mediatek,mt7986-thermal";
> +			reg = <0 0x1100c800 0 0x800>;
> +			interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&infracfg CLK_INFRA_THERM_CK>,
> +				 <&infracfg CLK_INFRA_ADC_26M_CK>;
> +			clock-names = "therm", "auxadc";
> +			nvmem-cells = <&thermal_calibration>;
> +			nvmem-cell-names = "calibration-data";
> +			#thermal-sensor-cells = <1>;
> +			mediatek,auxadc = <&auxadc>;
> +			mediatek,apmixedsys = <&apmixedsys>;
> +		};
> +
> +		auxadc: adc at 1100d000 {
> +			compatible = "mediatek,mt7981-auxadc",
> +				     "mediatek,mt7986-auxadc",
> +				     "mediatek,mt7622-auxadc";

That's not what your binding said.

It does not look like you tested the DTS against bindings. Please run
'make dtbs_check W=1' (see
Documentation/devicetree/bindings/writing-schema.rst or
https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).
Maybe you need to update your dtschema and yamllint. Don't rely on
distro packages for dtschema and be sure you are using the latest
released dtschema.

Best regards,
Krzysztof