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dt-bindings: net: phy: Add 10-baseT1L 2.4 Vpp

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Add a tristate property to advertise desired transmit level.

If the device supports the 2.4 Vpp operating mode for 10BASE-T1L,
as defined in 802.3gc, and the 2.4 Vpp transmit voltage operation
is desired, property should be set to 1. This property is used
to select whether Auto-Negotiation advertises a request to
operate the 10BASE-T1L PHY in increased transmit level mode.

If property is set to 1, the PHY shall advertise a request
to operate the 10BASE-T1L PHY in increased transmit level mode.
If property is set to zero, the PHY shall not advertise
a request to operate the 10BASE-T1L PHY in increased transmit level mode.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexandru Tachici 2022-04-29 18:34:37 +03:00 committed by David S. Miller
parent 48f20f9021
commit 49714461b7
1 changed files with 9 additions and 0 deletions
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9
Documentation/devicetree/bindings/net/ethernet-phy.yaml
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@ -77,6 +77,15 @@ properties:
description:
Maximum PHY supported speed in Mbits / seconds.
phy-10base-t1l-2.4vpp:
description: |
tristate, request/disable 2.4 Vpp operating mode. The values are:
0: Disable 2.4 Vpp operating mode.
1: Request 2.4 Vpp operating mode from link partner.
Absence of this property will leave configuration to default values.
$ref: "/schemas/types.yaml#/definitions/uint32"
enum: [0, 1]
broken-turn-around:
$ref: /schemas/types.yaml#/definitions/flag
description: