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Tip revision: bfeffd155283772bbe78c6a05dec7c0128ee500c authored by Linus Torvalds on 07 January 2019, 01:08:20 UTC
Linux 5.0-rc1
Tip revision: bfeffd1
qcom-spmi-temp-alarm.txt
Qualcomm QPNP PMIC Temperature Alarm

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.

Required properties:
- compatible:      Should contain "qcom,spmi-temp-alarm".
- reg:             Specifies the SPMI address.
- interrupts:      PMIC temperature alarm interrupt.
- #thermal-sensor-cells: Should be 0. See thermal.txt for a description.

Optional properties:
- io-channels:     Should contain IIO channel specifier for the ADC channel,
                   which report chip die temperature.
- io-channel-names: Should contain "thermal".

Example:

	pm8941_temp: thermal-alarm@2400 {
		compatible = "qcom,spmi-temp-alarm";
		reg = <0x2400>;
		interrupts = <0 0x24 0 IRQ_TYPE_EDGE_RISING>;
		#thermal-sensor-cells = <0>;

		io-channels = <&pm8941_vadc VADC_DIE_TEMP>;
		io-channel-names = "thermal";
	};

	thermal-zones {
		pm8941 {
			polling-delay-passive = <250>;
			polling-delay = <1000>;

			thermal-sensors = <&pm8941_temp>;

			trips {
				stage1 {
					temperature = <105000>;
					hysteresis = <2000>;
					type = "passive";
				};
				stage2 {
					temperature = <125000>;
					hysteresis = <2000>;
					type = "critical";
				};
			};
		};
	};

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