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[PATCH RFC 0/3] dt-bindings: net: Add network-class.yaml schema

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The Devicetree Specification, Release v0.3 specifies in section 4.3.1
a "Network Class Binding". This covers MAC address and maximal frame
size properties. "local-mac-address" and "mac-address" with a fixed
address-size of 48 bits is already in the ethernet-controller.yaml
schema so move those over.
I think the only commonly used values for address-size are 48 and 64
bits (EUI-48 and EUI-64). Unfortunately I was not able to restrict the
mac-address size based on the address-size. This seems to be an side
effect of the array definition and I was not able to restrict "minItems"
or "maxItems" based on the address-size value in an "if"-"then"-"else"
block.
An easy way out would be to restrict address-size to 48-bits for now.

I've ignored "max-frame-size" since the description in
ethernet-controller.yaml claims there is a contradiction in the
Devicetree specification. I suppose it is describing the property
"max-frame-size" with "Specifies maximum packet length ...".

My understanding from the dt-schema README is that network-class.yaml
should live in the dt-schema repository since it describes properties
from the Devicetree specification. How is the synchronization handled in
this case? The motivation for this series is to fix dtbs_check failures
for Apple silicon devices both in the tree and upcoming ones.

Signed-off-by: Janne Grunau <j@xxxxxxxxxx>
---
Janne Grunau (3):
      dt-bindings: net: Add network-class schema for mac-address properties
      dt-bindings: wireless: bcm4329-fmac: Use network-class.yaml schema
      dt-bindings: wireless: silabs,wfx: Use network-class.yaml

 .../bindings/net/ethernet-controller.yaml          | 18 +---------
 .../devicetree/bindings/net/network-class.yaml     | 40 ++++++++++++++++++++++
 .../bindings/net/wireless/brcm,bcm4329-fmac.yaml   |  5 ++-
 .../bindings/net/wireless/silabs,wfx.yaml          |  5 +--
 4 files changed, 46 insertions(+), 22 deletions(-)
---
base-commit: 1b929c02afd37871d5afb9d498426f83432e71c2
change-id: 20230203-dt-bindings-network-class-8367edd679d2

Best regards,
-- 
Janne Grunau <j@xxxxxxxxxx>




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