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