projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 61412ef1 TR |
1 | Kernel driver bel-pfe |
| 2 | ====================== | |
| 3 | ||
| 4 | Supported chips: | |
| 5 | ||
| 6 | * BEL PFE1100 | |
| 7 | ||
| 8 | Prefixes: 'pfe1100' | |
| 9 | ||
| 10 | Addresses scanned: - | |
| 11 | ||
| 12 | Datasheet: https://www.belfuse.com/resources/datasheets/powersolutions/ds-bps-pfe1100-12-054xa.pdf | |
| 13 | ||
| 14 | * BEL PFE3000 | |
| 15 | ||
| 16 | Prefixes: 'pfe3000' | |
| 17 | ||
| 18 | Addresses scanned: - | |
| 19 | ||
| 20 | Datasheet: https://www.belfuse.com/resources/datasheets/powersolutions/ds-bps-pfe3000-series.pdf | |
| 21 | ||
| 22 | Author: Tao Ren <rentao.bupt@gmail.com> | |
| 23 | ||
| 24 | ||
| 25 | Description | |
| 26 | ----------- | |
| 27 | ||
| 28 | This driver supports hardware monitoring for below power supply devices | |
| 29 | which support PMBus Protocol: | |
| 30 | ||
| 31 | * BEL PFE1100 | |
| 32 | ||
| 33 | 1100 Watt AC to DC power-factor-corrected (PFC) power supply. | |
| 34 | PMBus Communication Manual is not publicly available. | |
| 35 | ||
| 36 | * BEL PFE3000 | |
| 37 | ||
| 38 | 3000 Watt AC/DC power-factor-corrected (PFC) and DC-DC power supply. | |
| 39 | PMBus Communication Manual is not publicly available. | |
| 40 | ||
| 41 | The driver is a client driver to the core PMBus driver. Please see | |
| 42 | Documentation/hwmon/pmbus.rst for details on PMBus client drivers. | |
| 43 | ||
| 44 | ||
| 45 | Usage Notes | |
| 46 | ----------- | |
| 47 | ||
| 48 | This driver does not auto-detect devices. You will have to instantiate the | |
| 49 | devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for | |
| 50 | details. | |
| 51 | ||
| 52 | Example: the following will load the driver for an PFE3000 at address 0x20 | |
| 53 | on I2C bus #1:: | |
| 54 | ||
| 55 | $ modprobe bel-pfe | |
| 56 | $ echo pfe3000 0x20 > /sys/bus/i2c/devices/i2c-1/new_device | |
| 57 | ||
| 58 | ||
| 59 | Platform data support | |
| 60 | --------------------- | |
| 61 | ||
| 62 | The driver supports standard PMBus driver platform data. | |
| 63 | ||
| 64 | ||
| 65 | Sysfs entries | |
| 66 | ------------- | |
| 67 | ||
| 68 | ======================= ======================================================= | |
| 69 | curr1_label "iin" | |
| 70 | curr1_input Measured input current | |
| 71 | curr1_max Input current max value | |
| 72 | curr1_max_alarm Input current max alarm | |
| 73 | ||
| 74 | curr[2-3]_label "iout[1-2]" | |
| 75 | curr[2-3]_input Measured output current | |
| 76 | curr[2-3]_max Output current max value | |
| 77 | curr[2-3]_max_alarm Output current max alarm | |
| 78 | ||
| 79 | fan[1-2]_input Fan 1 and 2 speed in RPM | |
| 80 | fan1_target Set fan speed reference for both fans | |
| 81 | ||
| 82 | in1_label "vin" | |
| 83 | in1_input Measured input voltage | |
| 84 | in1_crit Input voltage critical max value | |
| 85 | in1_crit_alarm Input voltage critical max alarm | |
| 86 | in1_lcrit Input voltage critical min value | |
| 87 | in1_lcrit_alarm Input voltage critical min alarm | |
| 88 | in1_max Input voltage max value | |
| 89 | in1_max_alarm Input voltage max alarm | |
| 90 | ||
| 91 | in2_label "vcap" | |
| 92 | in2_input Hold up capacitor voltage | |
| 93 | ||
| 94 | in[3-8]_label "vout[1-3,5-7]" | |
| 95 | in[3-8]_input Measured output voltage | |
| 96 | in[3-4]_alarm vout[1-2] output voltage alarm | |
| 97 | ||
| 98 | power[1-2]_label "pin[1-2]" | |
| 99 | power[1-2]_input Measured input power | |
| 100 | power[1-2]_alarm Input power high alarm | |
| 101 | ||
| 102 | power[3-4]_label "pout[1-2]" | |
| 103 | power[3-4]_input Measured output power | |
| 104 | ||
| 105 | temp[1-3]_input Measured temperature | |
| 106 | temp[1-3]_alarm Temperature alarm | |
| 107 | ======================= ======================================================= | |
| 108 | ||
| 109 | .. note:: | |
| 110 | ||
| 111 | - curr3, fan2, vout[2-7], vcap, pin2, pout2 and temp3 attributes only | |
| 112 | exist for PFE3000. |