net: dt-bindings: ixp4xx-ethernet: Support fixed links

This ethernet controller is using fixed links for DSA switches
in two already existing device trees, so make sure the checker
does not complain like this:

intel-ixp42x-linksys-wrv54g.dtb: ethernet@c8009000 (intel,ixp4xx-ethernet):
'fixed-link' does not match any of the regexes: '^pinctrl-[0-9]+$'
from schema $id: http://devicetree.org/schemas/net/intel,ixp4xx-ethernet.yaml#

intel-ixp42x-usrobotics-usr8200.dtb: ethernet@c800a000 (intel,ixp4xx-ethernet):
'fixed-link' does not match any of the regexes: '^pinctrl-[0-9]+$'
from schema $id: http://devicetree.org/schemas/net/intel,ixp4xx-ethernet.yaml#

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202507040609.K9KytWBA-lkp@intel.com/
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250704-ixp4xx-ethernet-binding-fix-v1-1-8ac360d5bc9b@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/Documentation/devicetree/bindings/net/intel,ixp4xx-ethernet.yaml b/Documentation/devicetree/bindings/net/intel,ixp4xx-ethernet.yaml
index 4fdc5328826cf178968a2208aaabc1e05b3a2b55..8689de1aaea15f032ee0b6b30858385a910373eb 100644 (file)
--- a/Documentation/devicetree/bindings/net/intel,ixp4xx-ethernet.yaml
+++ b/Documentation/devicetree/bindings/net/intel,ixp4xx-ethernet.yaml
@@ -47,6 +47,8 @@ properties:
 
   phy-handle: true
 
+  fixed-link: true
+
   intel,npe-handle:
     $ref: /schemas/types.yaml#/definitions/phandle-array
     items: