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| author | Chris Packham <chris.packham@alliedtelesis.co.nz> | 2026-04-10 13:24:12 +1200 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2026-04-10 08:26:36 -0700 |
| commit | a2981c20ad673bcd5f0e5caa6ef103b8fcdbd6a2 (patch) | |
| tree | 1991ef72183efd266de487e48bc61bb3c8df5224 /Documentation | |
| parent | 502a498c1d03b941efae90b192d51109a66d463f (diff) | |
| download | linux-a2981c20ad673bcd5f0e5caa6ef103b8fcdbd6a2.tar.gz linux-a2981c20ad673bcd5f0e5caa6ef103b8fcdbd6a2.zip | |
hwmon: pmbus: Add support for Sony APS-379
Add pmbus support for Sony APS-379 power supplies. There are a few PMBUS
commands that return data that is undocumented/invalid so these need to
be rejected with -ENXIO. The READ_VOUT command returns data in linear11
format instead of linear16 so we need to workaround this.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/r/20260410012414.2818829-3-chris.packham@alliedtelesis.co.nz
[groeck: Dropped empty line from documentation; added module name to Kconfig]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/hwmon/aps-379.rst | 57 | ||||
| -rw-r--r-- | Documentation/hwmon/index.rst | 1 |
2 files changed, 58 insertions, 0 deletions
diff --git a/Documentation/hwmon/aps-379.rst b/Documentation/hwmon/aps-379.rst new file mode 100644 index 000000000000..6d4e63283e34 --- /dev/null +++ b/Documentation/hwmon/aps-379.rst @@ -0,0 +1,57 @@ +Kernel driver aps-379 +===================== + +Supported chips: + + * Sony APS-379 + + Prefix: 'aps-379' + + Addresses scanned: - + + Authors: + - Chris Packham + +Description +----------- + +This driver implements support for the PMBus monitor on the Sony APS-379 +modular power supply. The APS-379 deviates from the PMBus standard for the +READ_VOUT command by using the linear11 format instead of linear16. + +The known supported PMBus commands are: + +=== ============================= ========= ======= ===== +Cmd Function Protocol Scaling Bytes +=== ============================= ========= ======= ===== +01 On / Off Command (OPERATION) Byte R/W -- 1 +10 WRITE_PROTECT Byte R/W -- 1 +3B FAN_COMMAND_1 Word R/W -- 2 +46 Current Limit (in percent) Word R/W 2^0 2 +47 Current Limit Fault Response Byte R/W -- 1 +79 Alarm Data Bits (STATUS_WORD) Word Rd -- 2 +8B Output Voltage (READ_VOUT) Word Rd 2^-4 2 +8C Output Current (READ_IOUT) Word Rd 2^-2 2 +8D Power Supply Ambient Temp Word Rd 2^0 2 +90 READ_FAN_SPEED_1 Word Rd 2^6 2 +91 READ_FAN_SPEED_2 Word Rd 2^6 2 +96 Output Wattage (READ_POUT) Word Rd 2^1 2 +97 Input Wattage (READ_PIN) Word Rd 2^1 2 +9A Unit Model Number (MFR_MODEL) Block R/W -- 10 +9B Unit Revision Number Block R/W -- 10 +9E Unit Serial Number Block R/W -- 8 +99 Unit Manufacturer ID (MFR_ID) Block R/W -- 8 +D0 Unit Run Time Information Block Rd -- 4 +D5 Firmware Version Rd cust -- 8 +B0 User Data 1 (USER_DATA_00) Block R/W -- 4 +B1 User Data 2 (USER_DATA_01) Block R/W -- 4 +B2 User Data 3 (USER_DATA_02) Block R/W -- 4 +B3 User Data 4 (USER_DATA_03) Block R/W -- 4 +B4 User Data 5 (USER_DATA_04) Block R/W -- 4 +B5 User Data 6 (USER_DATA_05) Block R/W -- 4 +B6 User Data 7 (USER_DATA_06) Block R/W -- 4 +B7 User Data 8 (USER_DATA_07) Block R/W -- 4 +F0 Calibration command Byte R/W -- 1 +F1 Calibration data Word Wr 2^9 2 +F2 Unlock Calibration Byte Wr -- 1 +=== ============================= ========= ======= ===== diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 199f35a75282..80d5be0dda2d 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -41,6 +41,7 @@ Hardware Monitoring Kernel Drivers adt7475 aht10 amc6821 + aps-379 aquacomputer_d5next asb100 asc7621 |