[PATCH v2 0/3] net: dp83867: add new output-impedance DT binding

[Steffen Trumtrar]

Currently the dp83867 supports setting the io impedance to minimum,
maximum, default or a value from a nvmem cell. In situations where there
is no backend for a nvmem cell, the value can not be set to anything but
minimum, maximum or default.

Add support for a ti,output-impedance-ohms binding, allowing to specify
the impedance via the devicetree. The existing boolean bindings for
minimum and maximum take precedence over this new binding. The nvmem
consumer still takes lowest precedence.

Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
---
Changes in v2:
- change 'u8 *val' to 'u32 *val'
- fix logic in driver
- update description of new binding
- rename ti,output-impedance -> ti,output-impedance-ohms
- make mutual exclusivity explicit in binding
- Link to v1: https://patch.msgid.link/20260804-v7-2-topic-dp83867-v1-0-1ca79eb54eef@xxxxxxxxxxxxxx

To: Andrew Lunn <andrew+netdev@xxxxxxx>
To: "David S. Miller" <davem@xxxxxxxxxxxxx>
To: Eric Dumazet <edumazet@xxxxxxxxxx>
To: Jakub Kicinski <kuba@xxxxxxxxxx>
To: Paolo Abeni <pabeni@xxxxxxxxxx>
To: Rob Herring <robh@xxxxxxxxxx>
To: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
To: Conor Dooley <conor+dt@xxxxxxxxxx>
To: Andrew Davis <afd@xxxxxx>
To: Andrew Lunn <andrew@xxxxxxx>
To: Heiner Kallweit <hkallweit1@xxxxxxxxx>
To: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: netdev@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx

---
Steffen Trumtrar (3):
      dt-bindings: net: dp83867: make exclusivity explicit
      dt-bindings: dp83867: add binding for output-impedance
      net: phy: dp83867: support setting output-impedance

 .../devicetree/bindings/net/ti,dp83867.yaml        | 26 +++++++++++++++++++---
 drivers/net/phy/dp83867.c                          | 18 +++++++++++----
 2 files changed, 37 insertions(+), 7 deletions(-)
---
base-commit: 495561a136eaf585a305d36fc3affdba94aaf28e
change-id: 20260804-v7-2-topic-dp83867-e73a84c37016

Best regards,
--  
Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>