1.. SPDX-License-Identifier: GPL-2.0-only
2
3Broadcom BCM54140 Quad SGMII/QSGMII PHY
4=======================================
5
6Supported chips:
7
8   * Broadcom BCM54140
9
10     Datasheet: not public
11
12Author: Michael Walle <michael@walle.cc>
13
14Description
15-----------
16
17The Broadcom BCM54140 is a Quad SGMII/QSGMII PHY which supports monitoring
18its die temperature as well as two analog voltages.
19
20The AVDDL is a 1.0V analogue voltage, the AVDDH is a 3.3V analogue voltage.
21Both voltages and the temperature are measured in a round-robin fashion.
22
23Sysfs entries
24-------------
25
26The following attributes are supported.
27
28======================= ========================================================
29in0_label		"AVDDL"
30in0_input		Measured AVDDL voltage.
31in0_min			Minimum AVDDL voltage.
32in0_max			Maximum AVDDL voltage.
33in0_alarm		AVDDL voltage alarm.
34
35in1_label		"AVDDH"
36in1_input		Measured AVDDH voltage.
37in1_min			Minimum AVDDH voltage.
38in1_max			Maximum AVDDH voltage.
39in1_alarm		AVDDH voltage alarm.
40
41temp1_input		Die temperature.
42temp1_min		Minimum die temperature.
43temp1_max		Maximum die temperature.
44temp1_alarm		Die temperature alarm.
45======================= ========================================================
46