xref: /freebsd/sys/contrib/device-tree/Bindings/thermal/qcom,spmi-temp-alarm.yaml (revision 0e8011faf58b743cc652e3b2ad0f7671227610df)

# 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

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";
                };
            };
        };
    };