From: Colin Huang Date: Fri, 8 May 2026 09:44:29 +0000 (+0800) Subject: Documentation/hwmon: add Delta E50SN12051 documentation X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=c41bc867788aca16b6f2d27185ffad8dca8f99c3;p=thirdparty%2Flinux.git Documentation/hwmon: add Delta E50SN12051 documentation Document the hardware monitoring support for the Delta E50SN12051 device. The documentation describes the supported sensors exposed via the hwmon subsystem, including voltage, current, and temperature measurements. Signed-off-by: Colin Huang Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20260508-add-e50sn12051-v5-2-abebdcc29665@gmail.com Signed-off-by: Guenter Roeck --- diff --git a/Documentation/hwmon/e50sn12051.rst b/Documentation/hwmon/e50sn12051.rst new file mode 100644 index 0000000000000..cbbfa7895d829 --- /dev/null +++ b/Documentation/hwmon/e50sn12051.rst @@ -0,0 +1,81 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver e50sn12051 +======================== + +Supported chips: + + * Delta E50SN12051 + + Prefix: 'e50sn12051' + + Addresses scanned: - + + Datasheet: + + Provided by Delta upon request and NDA + +Description +----------- + +E50SN12051 is a 600W non-isolated 1/8th brick DC-DC power module. + +This driver supports the E50SN12051 PMBus compliant monitor device. + +The device provides measurements for: + +* Input voltage +* Output current +* Output voltage +* Temperature + +The driver is based on the PMBus core and exposes standard hwmon +sysfs attributes. + +Sysfs attributes +---------------- + +======================= ======================================================= +curr1_label "iout1" +curr1_crit Critical maximum current. + From IOUT_OC_FAULT_LIMIT register. +curr1_crit_alarm Current critical high alarm. + From IOUT_OC_FAULT status. +curr1_input Measured current. + From READ_IOUT register. +curr1_max Maximum current. + From IOUT_OC_WARN_LIMIT register. +curr1_max_alarm Current high alarm. + From IOUT_OC_WARN_LIMIT status. + +in1_label "vin" +in1_alarm Input voltage alarm. +in1_input Measured voltage. + From READ_VIN register. + +in2_label "vout1" +in2_crit Critical maximum voltage. + From VOUT_OV_FAULT_LIMIT register. +in2_crit_alarm Voltage critical high alarm. + From VOLTAGE_OV_FAULT status. +in2_input Measured voltage. + From READ_VOUT register. +in2_max Maximum voltage. + From VOUT_OV_WARN_LIMIT register. +in2_max_alarm Voltage high alarm. + From VOLTAGE_OV_WARNING status. + +temp1_crit Critical high temperature. + From OT_FAULT_LIMIT register. +temp1_crit_alarm Module temperature critical high alarm. + Set by comparing READ_TEMPERATURE_1 with OT_FAULT_LIMIT + if TEMP_OT_FAULT status is set. +temp1_input Measured module's hot spot temperature. + From READ_TEMPERATURE_1 register. +temp1_max Maximum temperature. + From OT_WARN_LIMIT register. +temp1_max_alarm Module temperature high alarm. + Set by comparing READ_TEMPERATURE_1 with OT_WARN_LIMIT if + TEMP_OT_WARNING status is set. +======================= ======================================================= + diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 595350bfc0032..f9cbdcb75128c 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -68,6 +68,7 @@ Hardware Monitoring Kernel Drivers drivetemp ds1621 ds620 + e50sn12051 emc1403 emc2103 emc2305