58 lines
1.5 KiB
Plaintext
58 lines
1.5 KiB
Plaintext
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 and length of the controller's
|
|
registers.
|
|
- 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 0x100>;
|
|
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 {
|
|
passive {
|
|
temperature = <1050000>;
|
|
hysteresis = <2000>;
|
|
type = "passive";
|
|
};
|
|
alert {
|
|
temperature = <125000>;
|
|
hysteresis = <2000>;
|
|
type = "hot";
|
|
};
|
|
crit {
|
|
temperature = <145000>;
|
|
hysteresis = <2000>;
|
|
type = "critical";
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|