xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/thermal/qcom,spmi-temp-alarm.yaml

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/thermal/qcom,spmi-temp-alarm.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm QPNP PMIC Temperature Alarm

maintainers:
  - Bjorn Andersson <bjorn.andersson@linaro.org>

description:
  QPNP temperature alarm peripherals are found inside of Qualcomm PMIC chips
  that utilize the Qualcomm SPMI implementation. These peripherals provide an
  interrupt signal and status register to identify high PMIC die temperature.

allOf:
  - $ref: thermal-sensor.yaml#

properties:
  compatible:
    const: qcom,spmi-temp-alarm

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  io-channels:
    items:
      - description: ADC channel, which reports chip die temperature

  io-channel-names:
    items:
      - const: thermal

  '#thermal-sensor-cells':
    const: 0

required:
  - compatible
  - reg
  - interrupts
  - '#thermal-sensor-cells'

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    pmic {
        #address-cells = <1>;
        #size-cells = <0>;

        pm8350_temp_alarm: temperature-sensor@a00 {
            compatible = "qcom,spmi-temp-alarm";
            reg = <0xa00>;
            interrupts = <0x1 0xa 0x0 IRQ_TYPE_EDGE_BOTH>;
            #thermal-sensor-cells = <0>;
        };
    };

    thermal-zones {
        pm8350_thermal: pm8350c-thermal {
            polling-delay-passive = <100>;
            polling-delay = <0>;
            thermal-sensors = <&pm8350_temp_alarm>;

            trips {
                pm8350_trip0: trip0 {
                    temperature = <95000>;
                    hysteresis = <0>;
                    type = "passive";
                };

                pm8350_crit: pm8350c-crit {
                    temperature = <115000>;
                    hysteresis = <0>;
                    type = "critical";
                };
            };
        };
    };