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diff --git a/Documentation/hwmon/bcm54140.rst b/Documentation/hwmon/bcm54140.rst new file mode 100644 index 000000000000..bc6ea4b45966 --- /dev/null +++ b/Documentation/hwmon/bcm54140.rst @@ -0,0 +1,45 @@ +.. SPDX-License-Identifier: GPL-2.0-only + +Broadcom BCM54140 Quad SGMII/QSGMII PHY +======================================= + +Supported chips: + + * Broadcom BCM54140 + + Datasheet: not public + +Author: Michael Walle <michael@walle.cc> + +Description +----------- + +The Broadcom BCM54140 is a Quad SGMII/QSGMII PHY which supports monitoring +its die temperature as well as two analog voltages. + +The AVDDL is a 1.0V analogue voltage, the AVDDH is a 3.3V analogue voltage. +Both voltages and the temperature are measured in a round-robin fashion. + +Sysfs entries +------------- + +The following attributes are supported. + +======================= ======================================================== +in0_label "AVDDL" +in0_input Measured AVDDL voltage. +in0_min Minimum AVDDL voltage. +in0_max Maximum AVDDL voltage. +in0_alarm AVDDL voltage alarm. + +in1_label "AVDDH" +in1_input Measured AVDDH voltage. +in1_min Minimum AVDDH voltage. +in1_max Maximum AVDDH voltage. +in1_alarm AVDDH voltage alarm. + +temp1_input Die temperature. +temp1_min Minimum die temperature. +temp1_max Maximum die temperature. +temp1_alarm Die temperature alarm. +======================= ======================================================== |