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| author | Brian Chiang <chiang.brian@inventec.com> | 2026-04-28 12:19:29 +0000 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2026-05-24 13:54:01 -0700 |
| commit | 907d6fefeda33cfd4e951082e23fd291b4d0d24a (patch) | |
| tree | 090ea2208f69fbda8e2138193e6c7a49810d4619 /Documentation | |
| parent | e23dbac2089705e799eff613f656c07e9645f0f8 (diff) | |
| download | linux-next-history-907d6fefeda33cfd4e951082e23fd291b4d0d24a.tar.gz | |
hwmon: (pmbus/lx1308) Add support for LX1308
Add support for the Luxshare LX1308, a high-efficiency 12V 860W
DC/DC power module. The module operates from 40-60V input voltage.
Signed-off-by: Brian Chiang <chiang.brian@inventec.com>
Link: https://lore.kernel.org/r/20260428-add-support-lx1308-v2-2-90f115954143@inventec.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/hwmon/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/hwmon/lx1308.rst | 90 |
2 files changed, 91 insertions, 0 deletions
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 96612a16f93ac..2ae3316c46659 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -146,6 +146,7 @@ Hardware Monitoring Kernel Drivers ltc4261 ltc4282 ltc4286 + lx1308 macsmc-hwmon max127 max15301 diff --git a/Documentation/hwmon/lx1308.rst b/Documentation/hwmon/lx1308.rst new file mode 100644 index 0000000000000..c1b72e1647c52 --- /dev/null +++ b/Documentation/hwmon/lx1308.rst @@ -0,0 +1,90 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver lx1308 +==================== + +Supported chips: + + * Luxshare LX1308 + + Prefixes: 'lx1308' + + Addresses scanned: - + + Datasheet: Datasheet is not publicly available. + +Author: Brian Chiang <chiang.brian@inventec.com> + + +Description +----------- + +The LX1308 is a high-efficiency, non-isolated, regulated 12V, 860W, +digital DC/DC power module. The module operates from a 40V to 60V DC +primary bus and provides a 12V regulated output voltage. It can deliver +up to 860W continuous and 1300W in transient. + +The module has slow OCP and fast OCP. If the module output current is higher +than slow OCP set point and the lasting time is also longer than the delay, +the module will shut down and retry 3 time, if the fault still exists then +module enter latch mode. + +If the module output current is higher than fast OCP set point then it shut +down and enter latch mode. + +The driver is a client driver to the core PMBus driver. +Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers. + + +Usage Notes +----------- + +This driver does not auto-detect devices. You will have to instantiate the +devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for +details. + + +Sysfs entries +------------- + +======================= ====================================================== +curr1_alarm Input current alarm +curr1_input Input current (IIN) +curr1_label "iin" +curr2_crit Output over current fault threshold (slow OCP, 60ms delay) +curr2_crit_alarm Output over current fault alarm +curr2_input Output current (IOUT) +curr2_label "iout1" +curr2_max Output over current warning threshold (slow OCP, 60ms delay) +curr2_max_alarm Output over current warning alarm +in1_crit Input over voltage fault threshold +in1_crit_alarm Input over voltage fault alarm +in1_input Input voltage (VIN) +in1_label "vin" +in1_lcrit Input under voltage fault threshold +in1_lcrit_alarm Input under voltage fault alarm +in1_max Input over voltage warning threshold +in1_max_alarm Input over voltage warning alarm +in1_min Input under voltage warning threshold +in1_min_alarm Input under voltage warning alarm +in2_crit Output over voltage fault threshold +in2_crit_alarm Output over voltage fault alarm +in2_input Output voltage (VOUT) +in2_label "vout1" +in2_lcrit Output under voltage fault threshold +in2_lcrit_alarm Output under voltage fault alarm +in2_max Output over voltage warning threshold +in2_max_alarm Output over voltage warning alarm +in2_min Output under voltage warning threshold +in2_min_alarm Output under voltage warning alarm +power1_alarm Input power alarm +power1_input Input power (PIN) +power1_label "pin" +power2_input Output power (POUT) +power2_label "pout1" +temp1_crit Over temperature fault threshold +temp1_crit_alarm Over temperature fault alarm +temp1_input Module hot spot temperature +temp1_max Over temperature warning threshold +temp1_max_alarm Over temperature warning alarm +======================= ====================================================== |