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