1 .. SPDX-License-Identifier: GPL-2.0 2 3 Kernel driver xdpe152 4 ===================== 5 6 Supported chips: 7 8 * Infineon XDPE152C4 9 10 Prefix: 'xdpe152c4' 11 12 * Infineon XDPE15284 13 14 Prefix: 'xdpe15284' 15 16 Authors: 17 18 Greg Schwendimann <greg.schwendimann@infineon.com> 19 20 Description 21 ----------- 22 23 This driver implements support for Infineon Digital Multi-phase Controller 24 XDPE152C4 and XDPE15284 dual loop voltage regulators. 25 The devices are compliant with: 26 27 - Intel VR13, VR13HC and VR14 rev 1.86 28 converter specification. 29 - Intel SVID rev 1.93. protocol. 30 - PMBus rev 1.3.1 interface. 31 32 Devices support linear format for reading input and output voltage, input 33 and output current, input and output power and temperature. 34 35 Devices support two pages for telemetry. 36 37 The driver provides for current: input, maximum and critical thresholds 38 and maximum and critical alarms. Low Critical thresholds and Low critical alarm are 39 supported only for current output. 40 The driver exports the following attributes for via the sysfs files, where 41 indexes 1, 2 are for "iin" and 3, 4 for "iout": 42 43 **curr[1-4]_crit** 44 45 **curr[1-4]_crit_alarm** 46 47 **curr[1-4]_input** 48 49 **curr[1-4]_label** 50 51 **curr[1-4]_max** 52 53 **curr[1-4]_max_alarm** 54 55 **curr[3-4]_lcrit** 56 57 **curr[3-4]_lcrit_alarm** 58 59 **curr[3-4]_rated_max** 60 61 The driver provides for voltage: input, critical and low critical thresholds 62 and critical and low critical alarms. 63 The driver exports the following attributes for via the sysfs files, where 64 indexes 1, 2 are for "vin" and 3, 4 for "vout": 65 66 **in[1-4]_min** 67 68 **in[1-4]_crit** 69 70 **in[1-4_crit_alarm** 71 72 **in[1-4]_input** 73 74 **in[1-4]_label** 75 76 **in[1-4]_max** 77 78 **in[1-4]_max_alarm** 79 80 **in[1-4]_min** 81 82 **in[1-4]_min_alarm** 83 84 **in[3-4]_lcrit** 85 86 **in[3-4]_lcrit_alarm** 87 88 **in[3-4]_rated_max** 89 90 **in[3-4]_rated_min** 91 92 The driver provides for power: input and alarms. 93 The driver exports the following attributes for via the sysfs files, where 94 indexes 1, 2 are for "pin" and 3, 4 for "pout": 95 96 **power[1-2]_alarm** 97 98 **power[1-4]_input** 99 100 **power[1-4]_label** 101 102 **power[1-4]_max** 103 104 **power[1-4]_rated_max** 105 106 The driver provides for temperature: input, maximum and critical thresholds 107 and maximum and critical alarms. 108 The driver exports the following attributes for via the sysfs files: 109 110 **temp[1-2]_crit** 111 112 **temp[1-2]_crit_alarm** 113 114 **temp[1-2]_input** 115 116 **temp[1-2]_max** 117 118 **temp[1-2]_max_alarm**
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