dt-bindings: hwmon: Add TMP512/513 Add dt-binding for TMP512/513 sensor chips Signed-off-by: Eric Tremblay <etremblay@xxxxxxxxxxxxxxxxxxxx> --- .../devicetree/bindings/hwmon/ti,tmp513.yaml | 88 +++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml diff --git a/Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml b/Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml new file mode 100644 index 000000000000..e5f3c72ff548 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml @@ -0,0 +1,88 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2018 Linaro Ltd. +%YAML 1.2 +--- + +$id: http://devicetree.org/schemas/hwmon/ti,tmp513.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TMP513/512 system monitor sensor + +maintainers: + - Eric Tremblay <etremblay@xxxxxxxxxxxxxxxxxxxx> + +description: | + The TMP512 (dual-channel) and TMP513 (triple-channel) are system monitors that include + remote sensors, a local temperature sensor, and a high-side current shunt monitor. + These system monitors have the capability of measuring remote temperatures, + on-chip temperatures, and system voltage/power/current consumption. + + Datasheets: + http://www.ti.com/lit/gpn/tmp513 + http://www.ti.com/lit/gpn/tmp512 + + +properties: + compatible: + enum: + - ti,tmp512 + - ti,tmp513 + + reg: + maxItems: 1 + + shunt-resistor-micro-ohms: + description: | + If 0, the calibration process will be skiped and the current and power + measurement engine will not work. Temperature and voltage measurement + will continue to work. + The shunt value also need to respect : rshunt <= pga-gain * 40 * 1000 * 1000. + If not, it's not possible to compute a valid calibration value. + default: 1000 + + ti,pga-gain: + description: | + The gain value for the PGA function. This is 8, 4, 2 or 1. + The PGA gain affect the shunt voltage range. + The range will be equal to: pga-gain * 40mV + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 2, 4, 8] + default: 8 + + ti,bus-voltage-range-volt: + description: | + This is the operating range of the bus voltage + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + enum: [16, 32] + default: 32 + + ti,nfactor: + description: | + Array of three(TMP513) or two(TMP512) n-Factor value for each remote + temperature channel. + See datasheet Table 11 for n-Factor range list and value interpretation. + allOf: + - $ref: /schemas/types.yaml#definitions/uint8-array + - minItems: 2 + maxItems: 3 + items: + default: 0 + +required: + - compatible + - reg + +examples: + - | + i2c { + tmp513@5c { + compatible = "ti,tmp513"; + reg = <0x5C>; + shunt-resistor-micro-ohms = <330000>; + ti,bus-voltage-range-volts = <32>; + ti,pga-gain = <8>; + ti,nfactor = [01 F3 00]; + }; + }; -- 2.17.1
