1 .. SPDX-License-Identifier: GPL-2.0-or-later 1 .. SPDX-License-Identifier: GPL-2.0-or-later
2 2
3 Kernel driver max20730 3 Kernel driver max20730
4 ====================== 4 ======================
5 5
6 Supported chips: 6 Supported chips:
7 7
8 * Maxim MAX20710 8 * Maxim MAX20710
9 9
10 Prefix: 'max20710' 10 Prefix: 'max20710'
11 11
12 Addresses scanned: - 12 Addresses scanned: -
13 13
14 Datasheet: https://datasheets.maximintegra 14 Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20710.pdf
15 15
16 * Maxim MAX20730 16 * Maxim MAX20730
17 17
18 Prefix: 'max20730' 18 Prefix: 'max20730'
19 19
20 Addresses scanned: - 20 Addresses scanned: -
21 21
22 Datasheet: https://datasheets.maximintegra 22 Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20730.pdf
23 23
24 * Maxim MAX20734 24 * Maxim MAX20734
25 25
26 Prefix: 'max20734' 26 Prefix: 'max20734'
27 27
28 Addresses scanned: - 28 Addresses scanned: -
29 29
30 Datasheet: https://datasheets.maximintegra 30 Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20734.pdf
31 31
32 * Maxim MAX20743 32 * Maxim MAX20743
33 33
34 Prefix: 'max20743' 34 Prefix: 'max20743'
35 35
36 Addresses scanned: - 36 Addresses scanned: -
37 37
38 Datasheet: https://datasheets.maximintegra 38 Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20743.pdf
39 39
40 Author: Guenter Roeck <linux@roeck-us.net> 40 Author: Guenter Roeck <linux@roeck-us.net>
41 41
42 42
43 Description 43 Description
44 ----------- 44 -----------
45 45
46 This driver implements support for Maxim MAX20 46 This driver implements support for Maxim MAX20710, MAX20730, MAX20734, and MAX20743
47 Integrated, Step-Down Switching Regulators wit 47 Integrated, Step-Down Switching Regulators with PMBus support.
48 48
49 The driver is a client driver to the core PMBu 49 The driver is a client driver to the core PMBus driver.
50 Please see Documentation/hwmon/pmbus.rst for d 50 Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
51 51
52 52
53 Usage Notes 53 Usage Notes
54 ----------- 54 -----------
55 55
56 This driver does not auto-detect devices. You 56 This driver does not auto-detect devices. You will have to instantiate the
57 devices explicitly. Please see Documentation/i 57 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
58 details. 58 details.
59 59
60 60
61 Sysfs entries 61 Sysfs entries
62 ------------- 62 -------------
63 63
64 =================== ===== ==================== 64 =================== ===== =======================================================
65 curr1_crit RW/RO Critical output curr 65 curr1_crit RW/RO Critical output current. Please see datasheet for
66 supported limits. Re 66 supported limits. Read-only if the chip is
67 write protected; rea 67 write protected; read-write otherwise.
68 curr1_crit_alarm RO Output current criti 68 curr1_crit_alarm RO Output current critical alarm
69 curr1_input RO Output current 69 curr1_input RO Output current
70 curr1_label RO 'iout1' 70 curr1_label RO 'iout1'
71 in1_alarm RO Input voltage alarm 71 in1_alarm RO Input voltage alarm
72 in1_input RO Input voltage 72 in1_input RO Input voltage
73 in1_label RO 'vin' 73 in1_label RO 'vin'
74 in2_alarm RO Output voltage alarm 74 in2_alarm RO Output voltage alarm
75 in2_input RO Output voltage 75 in2_input RO Output voltage
76 in2_label RO 'vout1' 76 in2_label RO 'vout1'
77 temp1_crit RW/RO Critical temeperatur 77 temp1_crit RW/RO Critical temeperature. Supported values are 130 or 150
78 degrees C. Read-only 78 degrees C. Read-only if the chip is write protected;
79 read-write otherwise 79 read-write otherwise.
80 temp1_crit_alarm RO Temperature critical 80 temp1_crit_alarm RO Temperature critical alarm
81 temp1_input RO Chip temperature 81 temp1_input RO Chip temperature
82 =================== ===== ==================== 82 =================== ===== =======================================================
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