SAR ADC enabled channel 8 can be used to measure the chip temperature.
This can be made available to the hwmon subsystem by using iio-hwmon.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/meson8m2-mxiii-plus.dts | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/boot/dts/meson8m2-mxiii-plus.dts b/arch/arm/boot/dts/meson8m2-mxiii-plus.dts
index f5853610b20b..d1d3c828c039 100644
--- a/arch/arm/boot/dts/meson8m2-mxiii-plus.dts
+++ b/arch/arm/boot/dts/meson8m2-mxiii-plus.dts
@@ -44,6 +44,11 @@
};
};
+ iio-hwmon {
+ compatible = "iio-hwmon";
+ io-channels = <&saradc 8>;
+ };
+
vcc_3v3: regulator-vcc3v3 {
compatible = "regulator-fixed";
regulator-name = "VCC3V3";
--
2.19.1
