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diff --git a/Documentation/hwmon/mp2888.rst b/Documentation/hwmon/mp2888.rst new file mode 100644 index 000000000000..5e578fd7b147 --- /dev/null +++ b/Documentation/hwmon/mp2888.rst @@ -0,0 +1,113 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver mp2888 +==================== + +Supported chips: + + * MPS MP12254 + + Prefix: 'mp2888' + +Author: + + Vadim Pasternak <vadimp@nvidia.com> + +Description +----------- + +This driver implements support for Monolithic Power Systems, Inc. (MPS) +vendor dual-loop, digital, multi-phase controller MP2888. + +This device: supports: + +- One power rail. +- Programmable Multi-Phase up to 10 Phases. +- PWM-VID Interface +- One pages 0 for telemetry. +- Programmable pins for PMBus Address. +- Built-In EEPROM to Store Custom Configurations. + +Device complaint with: + +- PMBus rev 1.3 interface. + +Device supports direct format for reading output current, output voltage, +input and output power and temperature. +Device supports linear format for reading input voltage and input power. + +The driver provides the next attributes for the current: + +- for current out input and maximum alarm; +- for phase current: input and label. + +The driver exports the following attributes via the 'sysfs' files, where: + +- 'n' is number of configured phases (from 1 to 10); +- index 1 for "iout"; +- indexes 2 ... 1 + n for phases. + +**curr[1-{1+n}]_input** + +**curr[1-{1+n}]_label** + +**curr1_max** + +**curr1_max_alarm** + +The driver provides the next attributes for the voltage: + +- for voltage in: input, low and high critical thresholds, low and high + critical alarms; +- for voltage out: input and high alarm; + +The driver exports the following attributes via the 'sysfs' files, where + +**in1_crit** + +**in1_crit_alarm** + +**in1_input** + +**in1_label** + +**in1_min** + +**in1_min_alarm** + +**in2_alarm** + +**in2_input** + +**in2_label** + +The driver provides the next attributes for the power: + +- for power in alarm and input. +- for power out: cap, cap alarm an input. + +The driver exports the following attributes via the 'sysfs' files, where +- indexes 1 for "pin"; +- indexes 2 for "pout"; + +**power1_alarm** + +**power1_input** + +**power1_label** + +**power2_input** + +**power2_label** + +**power2_max** + +**power2_max_alarm** + +The driver provides the next attributes for the temperature: + +**temp1_input** + +**temp1_max** + +**temp1_max_alarm** |