1*a66c9147SMario Kicherer.. SPDX-License-Identifier: GPL-2.0-or-later 2*a66c9147SMario Kicherer 3*a66c9147SMario KichererKernel driver mc34vr500 4*a66c9147SMario Kicherer======================= 5*a66c9147SMario Kicherer 6*a66c9147SMario KichererSupported Chips: 7*a66c9147SMario Kicherer 8*a66c9147SMario Kicherer * NXP MC34VR500 9*a66c9147SMario Kicherer 10*a66c9147SMario Kicherer Prefix: 'mc34vr500' 11*a66c9147SMario Kicherer 12*a66c9147SMario Kicherer Datasheet: https://www.nxp.com/docs/en/data-sheet/MC34VR500.pdf 13*a66c9147SMario Kicherer 14*a66c9147SMario KichererAuthor: Mario Kicherer <dev@kicherer.org> 15*a66c9147SMario Kicherer 16*a66c9147SMario KichererDescription 17*a66c9147SMario Kicherer----------- 18*a66c9147SMario Kicherer 19*a66c9147SMario KichererThis driver implements initial support for the NXP MC34VR500 PMIC. The MC34VR500 20*a66c9147SMario Kicherermonitors the temperature, input voltage and output currents and provides 21*a66c9147SMario Kicherercorresponding alarms. For the temperature, the chip can send interrupts if 22*a66c9147SMario Kichererthe temperature rises above one of the following values: 110°, 120°, 125° and 23*a66c9147SMario Kicherer130° Celsius. For the input voltage, an interrupt is sent when the voltage 24*a66c9147SMario Kichererdrops below 2.8V. 25*a66c9147SMario Kicherer 26*a66c9147SMario KichererCurrently, this driver only implements the input voltage and temperature 27*a66c9147SMario Kichereralarms. The interrupts are mapped as follows: 28*a66c9147SMario Kicherer 29*a66c9147SMario Kicherer<= 2.8V -> in0_min_alarm 30*a66c9147SMario Kicherer>110°c -> temp1_max_alarm 31*a66c9147SMario Kicherer>120°c -> temp1_crit_alarm 32*a66c9147SMario Kicherer>130°c -> temp1_emergency_alarm 33