Re: [PATCH 2/5] ARM: dts: meson: add the ADC thermal sensor to meson.dtsi

[Neil Armstrong]

On 21/12/2020 19:13, Martin Blumenstingl wrote:
> The SoC temperature can be retrieved from ADC channel 8 on all 32-bit
> SoCs (Meson6, Meson8, Meson8b and Meson8m2). Add a "generic-adc-thermal"
> instance to meson.dtsi so the thermal sensor is available for all SoCs.
> If the temperature sensor calibration data is missing for a board then
> the "generic-adc-thermal" will not probe and not register a thermal
> sensor.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
> ---
>  arch/arm/boot/dts/meson.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
> index 5f074f7aa1a2..e0ca5f08d07d 100644
> --- a/arch/arm/boot/dts/meson.dtsi
> +++ b/arch/arm/boot/dts/meson.dtsi
> @@ -298,6 +298,13 @@ efuse: nvmem@0 {
>  		};
>  	};
>  
> +	thermal_sensor: thermal-sensor {
> +		compatible = "generic-adc-thermal";
> +		#thermal-sensor-cells = <0>;
> +		io-channels = <&saradc 8>;
> +		io-channel-names = "sensor-channel";
> +	};
> +
>  	xtal: xtal-clk {
>  		compatible = "fixed-clock";
>  		clock-frequency = <24000000>;
> 

Reviewed-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>