This adds the devicetree binding documentation for the Temperature
Sensor found in the Amlogic Meson G12 SoCs.
Currently only the G12A SoCs are supported.
Signed-off-by: Guillaume La Roque <glaroque@xxxxxxxxxxxx>
---
.../iio/temperature/amlogic,meson-tsensor.txt | 31 +++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/temperature/amlogic,meson-tsensor.txt
diff --git a/Documentation/devicetree/bindings/iio/temperature/amlogic,meson-tsensor.txt b/Documentation/devicetree/bindings/iio/temperature/amlogic,meson-tsensor.txt
new file mode 100644
index 000000000000..d064db0e9cac
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/amlogic,meson-tsensor.txt
@@ -0,0 +1,31 @@
+* Amlogic Meson Temperature Sensor
+
+Required properties:
+- compatible: depending on the SoC and the position of the sensor,
+ this should be one of:
+ - "amlogic,meson-g12a-cpu-tsensor" for the CPU G12A SoC sensor
+ - "amlogic,meson-g12a-ddr-tsensor" for the DDR G12A SoC sensor
+ followed by the common :
+ - "amlogic,meson-g12a-tsensor" for G12A SoC family
+- reg: the physical base address and length of the registers
+- interrupts: the interrupt indicating end of sampling
+- clocks: phandle identifier for the reference clock of temperature sensor
+- #io-channel-cells: must be 1, see ../iio-bindings.txt
+- amlogic,ao-secure: phandle to the ao-secure syscon
+
+Optional properties:
+- amlogic,critical-temperature: temperature value in milli degrees Celsius
+ to set automatic reboot on too high temperature
+
+Example:
+ cpu_temp: temperature-sensor@ff634800 {
+ compatible = "amlogic,meson-g12a-cpu-tsensor",
+ "amlogic,meson-g12a-tsensor";
+ reg = <0x0 0xff634800 0x0 0x50>;
+ interrupts = <GIC_SPI 35 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_TS>;
+ status = "okay";
+ #io-channel-cells = <1>;
+ amlogic,meson-ao-secure = <&sec_AO>;
+ amlogic,critical-temperature = <115000>;
+ };
--
2.17.1
