1*5d901d7dSSatya Priya Kakitapalli# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*5d901d7dSSatya Priya Kakitapalli%YAML 1.2 3*5d901d7dSSatya Priya Kakitapalli--- 4*5d901d7dSSatya Priya Kakitapalli$id: http://devicetree.org/schemas/thermal/qcom,pm8775-mbg-tm.yaml# 5*5d901d7dSSatya Priya Kakitapalli$schema: http://devicetree.org/meta-schemas/core.yaml# 6*5d901d7dSSatya Priya Kakitapalli 7*5d901d7dSSatya Priya Kakitapallititle: Qualcomm's SPMI PMIC MBG Thermal Monitoring 8*5d901d7dSSatya Priya Kakitapalli 9*5d901d7dSSatya Priya Kakitapallimaintainers: 10*5d901d7dSSatya Priya Kakitapalli - Jishnu Prakash <jishnu.prakash@oss.qualcomm.com> 11*5d901d7dSSatya Priya Kakitapalli - Kamal Wadhwa <kamal.wadhwa@oss.qualcomm.com> 12*5d901d7dSSatya Priya Kakitapalli 13*5d901d7dSSatya Priya Kakitapallidescription: 14*5d901d7dSSatya Priya Kakitapalli Qualcomm's MBG(Master Bandgap) temperature alarm monitors the die 15*5d901d7dSSatya Priya Kakitapalli temperature and generates an interrupt if the PMIC die temperature is 16*5d901d7dSSatya Priya Kakitapalli over a set of programmable temperature thresholds. It allows monitoring 17*5d901d7dSSatya Priya Kakitapalli for both hot and cold, LVL1 and LVL2 thresholds, which makes it different 18*5d901d7dSSatya Priya Kakitapalli from the existing temp alarm peripheral. The interrupt comes over SPMI 19*5d901d7dSSatya Priya Kakitapalli and the MBG's fault status register gives details to understand whether 20*5d901d7dSSatya Priya Kakitapalli it is a hot/cold and LVL1/LVL2 violation. 21*5d901d7dSSatya Priya Kakitapalli 22*5d901d7dSSatya Priya Kakitapalliproperties: 23*5d901d7dSSatya Priya Kakitapalli compatible: 24*5d901d7dSSatya Priya Kakitapalli const: qcom,pm8775-mbg-tm 25*5d901d7dSSatya Priya Kakitapalli 26*5d901d7dSSatya Priya Kakitapalli reg: 27*5d901d7dSSatya Priya Kakitapalli maxItems: 1 28*5d901d7dSSatya Priya Kakitapalli 29*5d901d7dSSatya Priya Kakitapalli interrupts: 30*5d901d7dSSatya Priya Kakitapalli maxItems: 1 31*5d901d7dSSatya Priya Kakitapalli 32*5d901d7dSSatya Priya Kakitapalli io-channels: 33*5d901d7dSSatya Priya Kakitapalli items: 34*5d901d7dSSatya Priya Kakitapalli - description: ADC channel, which reports chip die temperature. 35*5d901d7dSSatya Priya Kakitapalli 36*5d901d7dSSatya Priya Kakitapalli io-channel-names: 37*5d901d7dSSatya Priya Kakitapalli items: 38*5d901d7dSSatya Priya Kakitapalli - const: thermal 39*5d901d7dSSatya Priya Kakitapalli 40*5d901d7dSSatya Priya Kakitapalli '#thermal-sensor-cells': 41*5d901d7dSSatya Priya Kakitapalli const: 0 42*5d901d7dSSatya Priya Kakitapalli 43*5d901d7dSSatya Priya Kakitapallirequired: 44*5d901d7dSSatya Priya Kakitapalli - compatible 45*5d901d7dSSatya Priya Kakitapalli - reg 46*5d901d7dSSatya Priya Kakitapalli - interrupts 47*5d901d7dSSatya Priya Kakitapalli - io-channels 48*5d901d7dSSatya Priya Kakitapalli - io-channel-names 49*5d901d7dSSatya Priya Kakitapalli 50*5d901d7dSSatya Priya KakitapalliallOf: 51*5d901d7dSSatya Priya Kakitapalli - $ref: thermal-sensor.yaml# 52*5d901d7dSSatya Priya Kakitapalli 53*5d901d7dSSatya Priya KakitapalliunevaluatedProperties: false 54*5d901d7dSSatya Priya Kakitapalli 55*5d901d7dSSatya Priya Kakitapalliexamples: 56*5d901d7dSSatya Priya Kakitapalli - | 57*5d901d7dSSatya Priya Kakitapalli #include <dt-bindings/interrupt-controller/irq.h> 58*5d901d7dSSatya Priya Kakitapalli 59*5d901d7dSSatya Priya Kakitapalli pmic { 60*5d901d7dSSatya Priya Kakitapalli #address-cells = <1>; 61*5d901d7dSSatya Priya Kakitapalli #size-cells = <0>; 62*5d901d7dSSatya Priya Kakitapalli 63*5d901d7dSSatya Priya Kakitapalli temperature-sensor@d700 { 64*5d901d7dSSatya Priya Kakitapalli compatible = "qcom,pm8775-mbg-tm"; 65*5d901d7dSSatya Priya Kakitapalli reg = <0xd700>; 66*5d901d7dSSatya Priya Kakitapalli interrupts = <0x1 0xd7 0x0 IRQ_TYPE_EDGE_RISING>; 67*5d901d7dSSatya Priya Kakitapalli io-channels = <&pm8775_adc 0x3>; 68*5d901d7dSSatya Priya Kakitapalli io-channel-names = "thermal"; 69*5d901d7dSSatya Priya Kakitapalli #thermal-sensor-cells = <0>; 70*5d901d7dSSatya Priya Kakitapalli }; 71*5d901d7dSSatya Priya Kakitapalli }; 72*5d901d7dSSatya Priya Kakitapalli... 73