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 <[email protected]> --- 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>; -- 2.29.2
