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1.. SPDX-License-Identifier: GPL-2.02 3Kernel driver mp28884====================5 6Supported chips:7 8 * MPS MP122549 10 Prefix: 'mp2888'11 12Author:13 14 Vadim Pasternak <vadimp@nvidia.com>15 16Description17-----------18 19This driver implements support for Monolithic Power Systems, Inc. (MPS)20vendor dual-loop, digital, multi-phase controller MP2888.21 22This device: supports:23 24- One power rail.25- Programmable Multi-Phase up to 10 Phases.26- PWM-VID Interface27- One pages 0 for telemetry.28- Programmable pins for PMBus Address.29- Built-In EEPROM to Store Custom Configurations.30 31Device complaint with:32 33- PMBus rev 1.3 interface.34 35Device supports direct format for reading output current, output voltage,36input and output power and temperature.37Device supports linear format for reading input voltage and input power.38 39The driver provides the next attributes for the current:40 41- for current out input and maximum alarm;42- for phase current: input and label.43 44The driver exports the following attributes via the 'sysfs' files, where:45 46- 'n' is number of configured phases (from 1 to 10);47- index 1 for "iout";48- indexes 2 ... 1 + n for phases.49 50**curr[1-{1+n}]_input**51 52**curr[1-{1+n}]_label**53 54**curr1_max**55 56**curr1_max_alarm**57 58The driver provides the next attributes for the voltage:59 60- for voltage in: input, low and high critical thresholds, low and high61 critical alarms;62- for voltage out: input and high alarm;63 64The driver exports the following attributes via the 'sysfs' files, where65 66**in1_crit**67 68**in1_crit_alarm**69 70**in1_input**71 72**in1_label**73 74**in1_min**75 76**in1_min_alarm**77 78**in2_alarm**79 80**in2_input**81 82**in2_label**83 84The driver provides the next attributes for the power:85 86- for power in alarm and input.87- for power out: cap, cap alarm an input.88 89The driver exports the following attributes via the 'sysfs' files, where90- indexes 1 for "pin";91- indexes 2 for "pout";92 93**power1_alarm**94 95**power1_input**96 97**power1_label**98 99**power2_input**100 101**power2_label**102 103**power2_max**104 105**power2_max_alarm**106 107The driver provides the next attributes for the temperature:108 109**temp1_input**110 111**temp1_max**112 113**temp1_max_alarm**114