Merge branch 'phy-polarity-inversion-via-generic-device-tree-properties'

Vladimir Oltean says:

====================
PHY polarity inversion via generic device tree properties

Using the "rx-polarity" and "tx-polarity" device tree properties
introduced in linux-phy and merged into net-next in
commit 96a2d53f2478 ("Merge tag 'phy_common_properties' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy")
we convert here two existing networking use cases - the EN8811H Ethernet
PHY and the Mediatek LynxI PCS.

Original cover letter:

Polarity inversion (described in patch 4/10) is a feature with at least
4 potential new users waiting for a generic description:
- Horatiu Vultur with the lan966x SerDes
- Daniel Golle with the MaxLinear GSW1xx switches
- Bjørn Mork with the AN8811HB Ethernet PHY
- Me with a custom SJA1105 board, switch which uses the DesignWare XPCS

I became interested in exploring the problem space because I was averse
to the idea of adding vendor-specific device tree properties to describe
a common need.

This set contains an implementation of a generic feature that should
cater to all known needs that were identified during my documentation
phase.

Apart from what is converted here, we also have the following, which I
did not touch:
- "st,px_rx_pol_inv" - its binding is a .txt file and I don't have time
  for such a large detour to convert it to dtschema.
- "st,pcie-tx-pol-inv" and "st,sata-tx-pol-inv" - these are defined in a
  .txt schema but are not implemented in any driver. My verdict would be
  "delete the properties" but again, I would prefer not introducing such
  dependency to this series.
====================

Link: https://patch.msgid.link/20260119091220.1493761-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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