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dt-bindings: net: dsa: vsc73xx: add {rx,tx}-internal-delay-ps

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Add a schema validator to vitesse,vsc73xx.yaml for MAC-level RGMII delays
in the CPU port. Additionally, valid values for VSC73XX were defined,
and a common definition for the RX and TX valid range was created.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pawel Dembicki 2024-07-29 23:02:01 +02:00 committed by David S. Miller
parent 3b91b03271
commit b735154aeb
1 changed files with 32 additions and 0 deletions
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32
Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.yaml
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@ -52,6 +52,25 @@ properties:
allOf:
- $ref: dsa.yaml#/$defs/ethernet-ports
patternProperties:
"^(ethernet-)?ports$":
additionalProperties: true
patternProperties:
"^(ethernet-)?port@6$":
allOf:
- if:
properties:
phy-mode:
contains:
enum:
- rgmii
then:
properties:
rx-internal-delay-ps:
$ref: "#/$defs/internal-delay-ps"
tx-internal-delay-ps:
$ref: "#/$defs/internal-delay-ps"
# This checks if reg is a chipselect so the device is on an SPI
# bus, the if-clause will fail if reg is a tuple such as for a
# platform device.
@ -67,6 +86,15 @@ required:
- compatible
- reg
$defs:
internal-delay-ps:
description:
Disable tunable delay lines using 0 ps, or enable them and select
the phase between 1400 ps and 2000 ps in increments of 300 ps.
default: 2000
enum:
[0, 1400, 1700, 2000]
unevaluatedProperties: false
examples:
@ -108,6 +136,8 @@ examples:
reg = <6>;
ethernet = <&gmac1>;
phy-mode = "rgmii";
rx-internal-delay-ps = <0>;
tx-internal-delay-ps = <0>;
fixed-link {
speed = <1000>;
full-duplex;
@ -150,6 +180,8 @@ examples:
ethernet-port@6 {
reg = <6>;
ethernet = <&enet0>;
rx-internal-delay-ps = <0>;
tx-internal-delay-ps = <0>;
phy-mode = "rgmii";
fixed-link {
speed = <1000>;