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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2020-12-21 19:13:03 +0100
committerKevin Hilman <khilman@baylibre.com>2021-01-25 09:46:44 -0800
commitc8559511107120403f7810428f50fc68fd77ed5a (patch)
treebe968682fb789186db99c4f96101ad74ac27fb35
parente9ced25e41588a2ff95280b4d3dabf3a0865513b (diff)
ARM: dts: meson: add the ADC thermal sensor to meson.dtsi
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@googlemail.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com> Link: https://lore.kernel.org/r/20201221181306.904272-3-martin.blumenstingl@googlemail.com
-rw-r--r--arch/arm/boot/dts/meson.dtsi7
1 files changed, 7 insertions, 0 deletions
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 @@
};
};
+ 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>;