[PATCH 5.15 128/171] dt-bindings: net: Reintroduce PHY no lane swap binding

Greg Kroah-Hartman
2021-12-13T10:08:00Z

From: Alexander Stein <alexander.stein@ew.tq-group.com>

commit 96db48c9d777a73a33b1d516c5cfed7a417a5f40 upstream.

This binding was already documented in phy.txt, commit 252ae5330daa
("Documentation: devicetree: Add PHY no lane swap binding"), but got
accidently removed during YAML conversion in commit d8704342c109
("dt-bindings: net: Add a YAML schemas for the generic PHY options").

Note: 'enet-phy-lane-no-swap' and the absence of 'enet-phy-lane-swap' are
not identical, as the former one disable this feature, while the latter
one doesn't change anything.

Fixes: d8704342c109 ("dt-bindings: net: Add a YAML schemas for the generic PHY options")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20211130082756.713919-1-alexander.stein@ew.tq-group.com
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
Documentation/devicetree/bindings/net/ethernet-phy.yaml | 8 ++++++++
1 file changed, 8 insertions(+)

--- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
@@ -91,6 +91,14 @@ properties:
compensate for the board being designed with the lanes
swapped.

+ enet-phy-lane-no-swap:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ If set, indicates that PHY will disable swap of the
+ TX/RX lanes. This property allows the PHY to work correcly after
+ e.g. wrong bootstrap configuration caused by issues in PCB
+ layout design.
+
eee-broken-100tx:
$ref: /schemas/types.yaml#/definitions/flag