Re: [PATCH] dt-bindings: net: mediatek/ralink: remove unused bindings

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Hi Rob,

On Wed, Apr 21, 2021 at 3:03 PM Rob Herring <robh@xxxxxxxxxx> wrote:
>
> On Mon, Apr 19, 2021 at 07:42:22PM -0700, Ilya Lipnitskiy wrote:
> > Revert commit 663148e48a66 ("Documentation: DT: net: add docs for
> > ralink/mediatek SoC ethernet binding")
> >
> > No in-tree drivers use the compatible strings present in these bindings,
> > and some have been superseded by DSA-capable mtk_eth_soc driver, so
> > remove these obsolete bindings.
>
> Looks like maybe OpenWRT folks are using these. If so, you can't revert
> them.
Indeed, there are out of tree drivers for some of these. I wasn't sure
what the dt-binding policy was for such use cases - can you point me
to a definitive reference?

Ilya
>
> >
> > Cc: John Crispin <john@xxxxxxxxxxx>
> > Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@xxxxxxxxx>
> > ---
> >  .../bindings/net/mediatek,mt7620-gsw.txt      | 24 --------
> >  .../bindings/net/ralink,rt2880-net.txt        | 59 -------------------
> >  .../bindings/net/ralink,rt3050-esw.txt        | 30 ----------
> >  3 files changed, 113 deletions(-)
> >  delete mode 100644 Documentation/devicetree/bindings/net/mediatek,mt7620-gsw.txt
> >  delete mode 100644 Documentation/devicetree/bindings/net/ralink,rt2880-net.txt
> >  delete mode 100644 Documentation/devicetree/bindings/net/ralink,rt3050-esw.txt
> >
> > diff --git a/Documentation/devicetree/bindings/net/mediatek,mt7620-gsw.txt b/Documentation/devicetree/bindings/net/mediatek,mt7620-gsw.txt
> > deleted file mode 100644
> > index 358fed2fab43..000000000000
> > --- a/Documentation/devicetree/bindings/net/mediatek,mt7620-gsw.txt
> > +++ /dev/null
> > @@ -1,24 +0,0 @@
> > -Mediatek Gigabit Switch
> > -=======================
> > -
> > -The mediatek gigabit switch can be found on Mediatek SoCs (mt7620, mt7621).
> > -
> > -Required properties:
> > -- compatible: Should be "mediatek,mt7620-gsw" or "mediatek,mt7621-gsw"
> > -- reg: Address and length of the register set for the device
> > -- interrupts: Should contain the gigabit switches interrupt
> > -- resets: Should contain the gigabit switches resets
> > -- reset-names: Should contain the reset names "gsw"
> > -
> > -Example:
> > -
> > -gsw@10110000 {
> > -     compatible = "ralink,mt7620-gsw";
> > -     reg = <0x10110000 8000>;
> > -
> > -     resets = <&rstctrl 23>;
> > -     reset-names = "gsw";
> > -
> > -     interrupt-parent = <&intc>;
> > -     interrupts = <17>;
> > -};
> > diff --git a/Documentation/devicetree/bindings/net/ralink,rt2880-net.txt b/Documentation/devicetree/bindings/net/ralink,rt2880-net.txt
> > deleted file mode 100644
> > index 9fe1a0a22e44..000000000000
> > --- a/Documentation/devicetree/bindings/net/ralink,rt2880-net.txt
> > +++ /dev/null
> > @@ -1,59 +0,0 @@
> > -Ralink Frame Engine Ethernet controller
> > -=======================================
> > -
> > -The Ralink frame engine ethernet controller can be found on Ralink and
> > -Mediatek SoCs (RT288x, RT3x5x, RT366x, RT388x, rt5350, mt7620, mt7621, mt76x8).
> > -
> > -Depending on the SoC, there is a number of ports connected to the CPU port
> > -directly and/or via a (gigabit-)switch.
> > -
> > -* Ethernet controller node
> > -
> > -Required properties:
> > -- compatible: Should be one of "ralink,rt2880-eth", "ralink,rt3050-eth",
> > -  "ralink,rt3050-eth", "ralink,rt3883-eth", "ralink,rt5350-eth",
> > -  "mediatek,mt7620-eth", "mediatek,mt7621-eth"
> > -- reg: Address and length of the register set for the device
> > -- interrupts: Should contain the frame engines interrupt
> > -- resets: Should contain the frame engines resets
> > -- reset-names: Should contain the reset names "fe". If a switch is present
> > -  "esw" is also required.
> > -
> > -
> > -* Ethernet port node
> > -
> > -Required properties:
> > -- compatible: Should be "ralink,eth-port"
> > -- reg: The number of the physical port
> > -- phy-handle: reference to the node describing the phy
> > -
> > -Example:
> > -
> > -mdio-bus {
> > -     ...
> > -     phy0: ethernet-phy@0 {
> > -             phy-mode = "mii";
> > -             reg = <0>;
> > -     };
> > -};
> > -
> > -ethernet@400000 {
> > -     compatible = "ralink,rt2880-eth";
> > -     reg = <0x00400000 10000>;
> > -
> > -     #address-cells = <1>;
> > -     #size-cells = <0>;
> > -
> > -     resets = <&rstctrl 18>;
> > -     reset-names = "fe";
> > -
> > -     interrupt-parent = <&cpuintc>;
> > -     interrupts = <5>;
> > -
> > -     port@0 {
> > -             compatible = "ralink,eth-port";
> > -             reg = <0>;
> > -             phy-handle = <&phy0>;
> > -     };
> > -
> > -};
> > diff --git a/Documentation/devicetree/bindings/net/ralink,rt3050-esw.txt b/Documentation/devicetree/bindings/net/ralink,rt3050-esw.txt
> > deleted file mode 100644
> > index 87e315856efa..000000000000
> > --- a/Documentation/devicetree/bindings/net/ralink,rt3050-esw.txt
> > +++ /dev/null
> > @@ -1,30 +0,0 @@
> > -Ralink Fast Ethernet Embedded Switch
> > -====================================
> > -
> > -The ralink fast ethernet embedded switch can be found on Ralink and Mediatek
> > -SoCs (RT3x5x, RT5350, MT76x8).
> > -
> > -Required properties:
> > -- compatible: Should be "ralink,rt3050-esw"
> > -- reg: Address and length of the register set for the device
> > -- interrupts: Should contain the embedded switches interrupt
> > -- resets: Should contain the embedded switches resets
> > -- reset-names: Should contain the reset names "esw"
> > -
> > -Optional properties:
> > -- ralink,portmap: can be used to choose if the default switch setup is
> > -  llllw or wllll
> > -- ralink,led_polarity: override the active high/low settings of the leds
> > -
> > -Example:
> > -
> > -esw@10110000 {
> > -     compatible = "ralink,rt3050-esw";
> > -     reg = <0x10110000 8000>;
> > -
> > -     resets = <&rstctrl 23>;
> > -     reset-names = "esw";
> > -
> > -     interrupt-parent = <&intc>;
> > -     interrupts = <17>;
> > -};
> > --
> > 2.31.1
> >



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