This documentens the bindings for the NXP PCT2075 temperature sensor driver. Signed-off-by: Daniel Mack <daniel@xxxxxxxxxx> --- .../bindings/iio/temperature/pct2075.txt | 60 +++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/temperature/pct2075.txt diff --git a/Documentation/devicetree/bindings/iio/temperature/pct2075.txt b/Documentation/devicetree/bindings/iio/temperature/pct2075.txt new file mode 100644 index 000000000000..dc5d3e991ab0 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/temperature/pct2075.txt @@ -0,0 +1,60 @@ +* NXP PCT2075 - I2C connected digital temperature sensor + +Link to datasheet: https://www.nxp.com/docs/en/data-sheet/PCT2075.pdf + +Required properties: + + - compatible: Should be "nxp,pct2075" + - reg: The I2C address of the sensor + (controllable via A[0,1,2] pins) + +Addressing pins can be tied high, low or left floating, allowing for up to +27 different I2C addresses, depending on the package. + +Optional properties: + + - vcc-supply: A regulator node that is connected to the Vcc pin + (2.7V - 5.5V). If specified, the regulator will be + enabled at probe time and disabled when the driver + is removed. + + - nxp,os-fault-queue: Specifies the number of faults that must occur + consecutively to activate the OS output pin. + Valid numbers are 1 (default), 2, 4 and 6. + + - nxp,os-active-high: Specifies that the OS pin should be in active-high + mode. By default, it is active-low. + + - nxp,os-mode-interrupt: Configures the device to operate the OS pin + as an interrupt rather than a comparator. Please + refer to the datasheet for information about the + differences. + + - nxp,sample-period-ms: Configures the sample period of the device in + milliseconds. Valid values are multiples of 100 + up to 3100. + + - nxp,overtemperature-shutdown-millicelsius: + Configures the temperature threshold at which the + device shuts down, in milli-celcius. + Values are given as signed integer and are valid + in the range from -55000 up to +125000. + + - nxp,hysteresis-millicelsius: + Configures the temperature threshold for OS pin + operation, in milli-celcius. + Values are given as signed integer and are valid + in the range from -55000 up to +125000. + +Example: + +pct2075@48 { + compatible = "nxp,pct2075"; + reg = <0x48>; /* A0, A1, A2 = low */ + nxp,os-active-high; + nxp,os-mode-interrupt; + nxp,sample-period-ms = <1000>; + nxp,overtemperature-shutdown-millicelsius = <110000>; + nxp,hysteresis-millicelsius = <(-10000)>; +}; + -- 2.21.0
