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4406d36dfd
The PHY supports monitoring its die temperature as well as two analog voltages. Add support for it. Signed-off-by: Michael Walle <michael@walle.cc> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
46 lines
1.2 KiB
ReStructuredText
46 lines
1.2 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0-only
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Broadcom BCM54140 Quad SGMII/QSGMII PHY
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=======================================
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Supported chips:
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* Broadcom BCM54140
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Datasheet: not public
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Author: Michael Walle <michael@walle.cc>
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Description
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-----------
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The Broadcom BCM54140 is a Quad SGMII/QSGMII PHY which supports monitoring
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its die temperature as well as two analog voltages.
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The AVDDL is a 1.0V analogue voltage, the AVDDH is a 3.3V analogue voltage.
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Both voltages and the temperature are measured in a round-robin fashion.
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Sysfs entries
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-------------
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The following attributes are supported.
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======================= ========================================================
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in0_label "AVDDL"
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in0_input Measured AVDDL voltage.
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in0_min Minimum AVDDL voltage.
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in0_max Maximum AVDDL voltage.
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in0_alarm AVDDL voltage alarm.
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in1_label "AVDDH"
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in1_input Measured AVDDH voltage.
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in1_min Minimum AVDDH voltage.
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in1_max Maximum AVDDH voltage.
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in1_alarm AVDDH voltage alarm.
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temp1_input Die temperature.
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temp1_min Minimum die temperature.
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temp1_max Maximum die temperature.
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temp1_alarm Die temperature alarm.
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======================= ========================================================
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