netdev - [PATCH v5 net 0/4] Fix broken link on Xilinx's AXI Ethernet in SGMII mode

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Message-Id: <20220323180022.864567-1-andy.chiu@sifive.com>
Date:   Thu, 24 Mar 2022 02:00:18 +0800
From:   Andy Chiu <andy.chiu@...ive.com>
To:     radhey.shyam.pandey@...inx.com, robert.hancock@...ian.com,
        michal.simek@...inx.com
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        robh+dt@...nel.org, linux@...linux.org.uk, andrew@...n.ch,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        robh@...nel.org, Andy Chiu <andy.chiu@...ive.com>
Subject: [PATCH v5 net 0/4] Fix broken link on Xilinx's AXI Ethernet in SGMII mode

The Ethernet driver use phy-handle to reference the PCS/PMA PHY. This
could be a problem if one wants to configure an external PHY via phylink,
since it use the same phandle to get the PHY. To fix this, introduce a
dedicated pcs-handle to point to the PCS/PMA PHY and deprecate the use
of pointing it with phy-handle. A similar use case of pcs-handle can be
seen on dpaa2 as well.

The v4 patch was wrongly based on net-next tree. 1,2,4 parts of v5 patch
was generated after re-applying the v4 patch then resolving conflicts on
the net tree. 3/5 also describes the pcs-handle more globally at the
ethernet-controller device tree binding document.

Andy Chiu (4):
  net: axienet: setup mdio unconditionally
  net: axienet: factor out phy_node in struct axienet_local
  dt-bindings: net: add pcs-handle attribute
  net: axiemac: use a phandle to reference pcs_phy

 .../bindings/net/ethernet-controller.yaml     |  6 ++++
 .../bindings/net/xilinx_axienet.txt           |  8 ++++-
 drivers/net/ethernet/xilinx/xilinx_axienet.h  |  2 --
 .../net/ethernet/xilinx/xilinx_axienet_main.c | 33 ++++++++++---------
 4 files changed, 31 insertions(+), 18 deletions(-)

-- 
2.34.1