Merge branch 'phy-package'

Christian Marangi says:

====================
net: phy: Introduce PHY Package concept

Idea of this big series is to introduce the concept of PHY package in DT
and give PHY drivers a way to derive the base address from DT.

The concept of PHY package is nothing new and is already a thing in the
kernel with the API phy_package_join/leave/read/write.

What is currently lacking is describing this in DT and better reference
a base address to calculate offset from.

In the scenario of a PHY package where multiple address are used and
there isn't a way to get the base address of the PHY package from some
regs, getting the information from DT is the only way.

A possible example to this problem is this:

        ethernet-phy-package@0 {
            compatible = "qcom,qca8075-package";
            #address-cells = <1>;
            #size-cells = <0>;

            reg = <0>;
            qcom,package-mode = "qsgmii";

            ethernet-phy@1 {
              reg = <1>;
            };

            phy4: ethernet-phy@4 {
              reg = <4>;
            };
        };

The mdio parse functions are changed to address for this additional
special node, the function is changed to simply detect this node and
search also in this. (we match the node name to be "ethernet-phy-package")

PHY driver can then use introduced helper of_phy_package_join to join the
PHY to the PHY package and derive the base address from DT.

Changes v7:
- Rebase on top of net-next
- Add Reviewed-by tag for DT patch
- Change tx-driver-strength to tx-drive-strength
- Drop driver reference in DT
Changes v6:
- Back to absolute PHY implementation
- Correctly drop refcount for node on error condition and on PHY leave
- Drop DT include patch in favor for 3 boolean vendor property
- Fix Documentation problem for compatible and missing type and
  description
- Drop redundand gpio-controller dependency and description
- Skip scanphy with invalid PHY Package node and make reg mandatory
- Rework fiber read status to use more generic function
- Split qca808x LED generalization patch to permit easier review
- Correctly return -EINVAL with wrong data passed to vendor property
- Drop removing LED ops for qca807x PHY driver with gpio-controller
Changes v5:
- Rebase on top of net-next
- Change implementation to base addr + offset in subnode
- Adapt to all the changes and cleanup done to at803x
Changes v4:
- Rework DT implementation
- Drop of autojoin support and rework to simple helper
- Rework PHY driver to the new implementation
- Add compatible for qca807x package
- Further cleanup patches
Changes v3:
- Add back compatible implementation
- Detach patch that can be handled separately (phy_package_mmd,
  phy_package extended)
- Rework code to new simplified implementation with base addr + offset
- Improve documentation with additional info and description
Changes v2:
- Drop compatible "ethernet-phy-package", use node name prefix matching
  instead
- Improve DT example
- Add reg for ethernet-phy-package
- Drop phy-mode for ethernet-phy-package
- Drop patch for generalization of phy-mode
- Drop global-phy property (handle internally to the PHY driver)
- Rework OF phy package code and PHY driver to handle base address
- Fix missing of_node_put
- Add some missing docs for added variables in struct
- Move some define from dt-bindings include to PHY driver
- Handle qsgmii validation in PHY driver
- Fix wrong include for gpiolib
- Drop reduntant version.h include
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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