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1.. SPDX-License-Identifier: GPL-2.02 3Kernel driver mp28914====================5 6Supported chips:7 8 * MPS mp28919 10 Prefix: 'mp2891'11 12 * Datasheet13 14 Publicly available at the MPS website : https://www.monolithicpower.com/en/mp2891.html15 16Author:17 18 Noah Wang <noahwang.wang@outlook.com>19 20Description21-----------22 23This driver implements support for Monolithic Power Systems, Inc. (MPS)24MP2891 Multi-phase Digital VR Controller.25 26Device compliant with:27 28- PMBus rev 1.3 interface.29 30Device supports direct and linear format for reading input voltage,31output voltage, input current, output current, input power, output32power, and temperature.33 34The driver exports the following attributes via the 'sysfs' files35for input voltage:36 37**in1_input**38 39**in1_label**40 41**in1_crit**42 43**in1_crit_alarm**44 45**in1_lcrit**46 47**in1_lcrit_alarm**48 49**in1_min**50 51**in1_min_alarm**52 53The driver provides the following attributes for output voltage:54 55**in2_input**56 57**in2_label**58 59**in2_crit**60 61**in2_crit_alarm**62 63**in2_lcrit**64 65**in2_lcrit_alarm**66 67**in2_min**68 69**in2_min_alarm**70 71**in3_input**72 73**in3_label**74 75**in3_crit**76 77**in3_crit_alarm**78 79**in3_lcrit**80 81**in3_lcrit_alarm**82 83**in3_min**84 85**in3_min_alarm**86 87The driver provides the following attributes for input current:88 89**curr1_input**90 91**curr1_label**92 93**curr1_max**94 95**curr1_max_alarm**96 97**curr2_input**98 99**curr2_label**100 101**curr2_max**102 103**curr2_max_alarm**104 105The driver provides the following attributes for output current:106 107**curr3_input**108 109**curr3_label**110 111**curr3_crit**112 113**curr3_crit_alarm**114 115**curr3_max**116 117**curr3_max_alarm**118 119**curr4_input**120 121**curr4_label**122 123**curr4_crit**124 125**curr4_crit_alarm**126 127**curr4_max**128 129**curr4_max_alarm**130 131The driver provides the following attributes for input power:132 133**power1_input**134 135**power1_label**136 137**power1_max**138 139**power1_alarm**140 141**power2_input**142 143**power2_label**144 145**power2_max**146 147**power2_alarm**148 149The driver provides the following attributes for output power:150 151**power3_input**152 153**power3_label**154 155**power4_input**156 157**power4_label**158 159The driver provides the following attributes for temperature:160 161**temp1_input**162 163**temp1_crit**164 165**temp1_crit_alarm**166 167**temp1_max**168 169**temp1_max_alarm**170 171**temp2_input**172 173**temp2_crit**174 175**temp2_crit_alarm**176 177**temp2_max**178 179**temp2_max_alarm**180