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[net-next v5 1/6] dt-bindings: net: Add MTIP L2 switch description

Lukasz Majewski posted 6 patches 8 months, 1 week ago
There is a newer version of this series
[net-next v5 1/6] dt-bindings: net: Add MTIP L2 switch description
Posted by Lukasz Majewski 8 months, 1 week ago 
This patch provides description of the MTIP L2 switch available in some
NXP's SOCs - e.g. imx287.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
---
Changes for v2:
- Rename the file to match exactly the compatible
  (nxp,imx287-mtip-switch)

Changes for v3:
- Remove '-' from const:'nxp,imx287-mtip-switch'
- Use '^port@[12]+$' for port patternProperties
- Drop status = "okay";
- Provide proper indentation for 'example' binding (replace 8
  spaces with 4 spaces)
- Remove smsc,disable-energy-detect; property
- Remove interrupt-parent and interrupts properties as not required
- Remove #address-cells and #size-cells from required properties check
- remove description from reg:
- Add $ref: ethernet-switch.yaml#

Changes for v4:
- Use $ref: ethernet-switch.yaml#/$defs/ethernet-ports and remove already
  referenced properties
- Rename file to nxp,imx28-mtip-switch.yaml

Changes for v5:
- Provide proper description for 'ethernet-port' node
---
 .../bindings/net/nxp,imx28-mtip-switch.yaml   | 141 ++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml

diff --git a/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
new file mode 100644
index 000000000000..6f2b5a277ac2
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
@@ -0,0 +1,141 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/nxp,imx28-mtip-switch.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP SoC Ethernet Switch Controller (L2 MoreThanIP switch)
+
+maintainers:
+  - Lukasz Majewski <lukma@denx.de>
+
+description:
+  The 2-port switch ethernet subsystem provides ethernet packet (L2)
+  communication and can be configured as an ethernet switch. It provides the
+  reduced media independent interface (RMII), the management data input
+  output (MDIO) for physical layer device (PHY) management.
+
+$ref: ethernet-switch.yaml#/$defs/ethernet-ports
+
+properties:
+  compatible:
+    const: nxp,imx28-mtip-switch
+
+  reg:
+    maxItems: 1
+
+  phy-supply:
+    description:
+      Regulator that powers Ethernet PHYs.
+
+  clocks:
+    items:
+      - description: Register accessing clock
+      - description: Bus access clock
+      - description: Output clock for external device - e.g. PHY source clock
+      - description: IEEE1588 timer clock
+
+  clock-names:
+    items:
+      - const: ipg
+      - const: ahb
+      - const: enet_out
+      - const: ptp
+
+  interrupts:
+    items:
+      - description: Switch interrupt
+      - description: ENET0 interrupt
+      - description: ENET1 interrupt
+
+  pinctrl-names: true
+
+  ethernet-ports:
+    type: object
+    additionalProperties: true
+    properties:
+      ethernet-port:
+        type: object
+        unevaluatedProperties: false
+
+        properties:
+          reg:
+            items:
+              - enum: [1, 2]
+            description: MTIP L2 switch port number
+
+        required:
+          - reg
+          - label
+          - phy-mode
+          - phy-handle
+
+  mdio:
+    type: object
+    $ref: mdio.yaml#
+    unevaluatedProperties: false
+    description:
+      Specifies the mdio bus in the switch, used as a container for phy nodes.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - mdio
+  - ethernet-ports
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include<dt-bindings/interrupt-controller/irq.h>
+    switch@800f0000 {
+        compatible = "nxp,imx28-mtip-switch";
+        reg = <0x800f0000 0x20000>;
+        pinctrl-names = "default";
+        pinctrl-0 = <&mac0_pins_a>, <&mac1_pins_a>;
+        phy-supply = <&reg_fec_3v3>;
+        interrupts = <100>, <101>, <102>;
+        clocks = <&clks 57>, <&clks 57>, <&clks 64>, <&clks 35>;
+        clock-names = "ipg", "ahb", "enet_out", "ptp";
+
+        ethernet-ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            mtip_port1: ethernet-port@1 {
+                reg = <1>;
+                label = "lan0";
+                local-mac-address = [ 00 00 00 00 00 00 ];
+                phy-mode = "rmii";
+                phy-handle = <&ethphy0>;
+            };
+
+            mtip_port2: ethernet-port@2 {
+                reg = <2>;
+                label = "lan1";
+                local-mac-address = [ 00 00 00 00 00 00 ];
+                phy-mode = "rmii";
+                phy-handle = <&ethphy1>;
+            };
+        };
+
+        mdio_sw: mdio {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            reset-gpios = <&gpio2 13 0>;
+            reset-delay-us = <25000>;
+            reset-post-delay-us = <10000>;
+
+            ethphy0: ethernet-phy@0 {
+                reg = <0>;
+            };
+
+            ethphy1: ethernet-phy@1 {
+                reg = <1>;
+            };
+        };
+    };
-- 
2.39.5
Re: [net-next v5 1/6] dt-bindings: net: Add MTIP L2 switch description
Posted by Stefan Wahren 8 months ago 
Hi Lukasz,

Am 14.04.25 um 16:01 schrieb Lukasz Majewski:
> This patch provides description of the MTIP L2 switch available in some
> NXP's SOCs - e.g. imx287.
>
> Signed-off-by: Lukasz Majewski <lukma@denx.de>
> ---
> Changes for v2:
> - Rename the file to match exactly the compatible
>    (nxp,imx287-mtip-switch)
>
> Changes for v3:
> - Remove '-' from const:'nxp,imx287-mtip-switch'
> - Use '^port@[12]+$' for port patternProperties
> - Drop status = "okay";
> - Provide proper indentation for 'example' binding (replace 8
>    spaces with 4 spaces)
> - Remove smsc,disable-energy-detect; property
> - Remove interrupt-parent and interrupts properties as not required
> - Remove #address-cells and #size-cells from required properties check
> - remove description from reg:
> - Add $ref: ethernet-switch.yaml#
>
> Changes for v4:
> - Use $ref: ethernet-switch.yaml#/$defs/ethernet-ports and remove already
>    referenced properties
> - Rename file to nxp,imx28-mtip-switch.yaml
>
> Changes for v5:
> - Provide proper description for 'ethernet-port' node
> ---
>   .../bindings/net/nxp,imx28-mtip-switch.yaml   | 141 ++++++++++++++++++
>   1 file changed, 141 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
>
> diff --git a/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> new file mode 100644
> index 000000000000..6f2b5a277ac2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> @@ -0,0 +1,141 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/nxp,imx28-mtip-switch.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP SoC Ethernet Switch Controller (L2 MoreThanIP switch)
> +
> +maintainers:
> +  - Lukasz Majewski <lukma@denx.de>
> +
> +description:
> +  The 2-port switch ethernet subsystem provides ethernet packet (L2)
> +  communication and can be configured as an ethernet switch. It provides the
> +  reduced media independent interface (RMII), the management data input
> +  output (MDIO) for physical layer device (PHY) management.
> +
> +$ref: ethernet-switch.yaml#/$defs/ethernet-ports
> +
> +properties:
> +  compatible:
> +    const: nxp,imx28-mtip-switch
> +
> +  reg:
> +    maxItems: 1
> +
> +  phy-supply:
> +    description:
> +      Regulator that powers Ethernet PHYs.
> +
> +  clocks:
> +    items:
> +      - description: Register accessing clock
> +      - description: Bus access clock
> +      - description: Output clock for external device - e.g. PHY source clock
> +      - description: IEEE1588 timer clock
> +
> +  clock-names:
> +    items:
> +      - const: ipg
> +      - const: ahb
> +      - const: enet_out
> +      - const: ptp
> +
> +  interrupts:
> +    items:
> +      - description: Switch interrupt
> +      - description: ENET0 interrupt
> +      - description: ENET1 interrupt
sorry for the late suggestion, but can we have additional 
interrupt-names here, please?
Re: [net-next v5 1/6] dt-bindings: net: Add MTIP L2 switch description
Posted by Lukasz Majewski 8 months ago 
Hi Stefan,

> Hi Lukasz,
> 
> Am 14.04.25 um 16:01 schrieb Lukasz Majewski:
> > This patch provides description of the MTIP L2 switch available in
> > some NXP's SOCs - e.g. imx287.
> >
> > Signed-off-by: Lukasz Majewski <lukma@denx.de>
> > ---
> > Changes for v2:
> > - Rename the file to match exactly the compatible
> >    (nxp,imx287-mtip-switch)
> >
> > Changes for v3:
> > - Remove '-' from const:'nxp,imx287-mtip-switch'
> > - Use '^port@[12]+$' for port patternProperties
> > - Drop status = "okay";
> > - Provide proper indentation for 'example' binding (replace 8
> >    spaces with 4 spaces)
> > - Remove smsc,disable-energy-detect; property
> > - Remove interrupt-parent and interrupts properties as not required
> > - Remove #address-cells and #size-cells from required properties
> > check
> > - remove description from reg:
> > - Add $ref: ethernet-switch.yaml#
> >
> > Changes for v4:
> > - Use $ref: ethernet-switch.yaml#/$defs/ethernet-ports and remove
> > already referenced properties
> > - Rename file to nxp,imx28-mtip-switch.yaml
> >
> > Changes for v5:
> > - Provide proper description for 'ethernet-port' node
> > ---
> >   .../bindings/net/nxp,imx28-mtip-switch.yaml   | 141
> > ++++++++++++++++++ 1 file changed, 141 insertions(+)
> >   create mode 100644
> > Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> >
> > diff --git
> > a/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> > b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> > new file mode 100644 index 000000000000..6f2b5a277ac2 --- /dev/null
> > +++
> > b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> > @@ -0,0 +1,141 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR
> > BSD-2-Clause) +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/nxp,imx28-mtip-switch.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: NXP SoC Ethernet Switch Controller (L2 MoreThanIP switch)
> > +
> > +maintainers:
> > +  - Lukasz Majewski <lukma@denx.de>
> > +
> > +description:
> > +  The 2-port switch ethernet subsystem provides ethernet packet
> > (L2)
> > +  communication and can be configured as an ethernet switch. It
> > provides the
> > +  reduced media independent interface (RMII), the management data
> > input
> > +  output (MDIO) for physical layer device (PHY) management.
> > +
> > +$ref: ethernet-switch.yaml#/$defs/ethernet-ports
> > +
> > +properties:
> > +  compatible:
> > +    const: nxp,imx28-mtip-switch
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  phy-supply:
> > +    description:
> > +      Regulator that powers Ethernet PHYs.
> > +
> > +  clocks:
> > +    items:
> > +      - description: Register accessing clock
> > +      - description: Bus access clock
> > +      - description: Output clock for external device - e.g. PHY
> > source clock
> > +      - description: IEEE1588 timer clock
> > +
> > +  clock-names:
> > +    items:
> > +      - const: ipg
> > +      - const: ahb
> > +      - const: enet_out
> > +      - const: ptp
> > +
> > +  interrupts:
> > +    items:
> > +      - description: Switch interrupt
> > +      - description: ENET0 interrupt
> > +      - description: ENET1 interrupt  
> sorry for the late suggestion, but can we have additional 
> interrupt-names here, please?

I've extended the proper *.yaml file and modified the driver to use
platform_get_irq_byname().


Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma@denx.de
Re: [net-next v5 1/6] dt-bindings: net: Add MTIP L2 switch description
Posted by Rob Herring 8 months, 1 week ago 
On Mon, Apr 14, 2025 at 04:01:23PM +0200, Lukasz Majewski wrote:
> This patch provides description of the MTIP L2 switch available in some
> NXP's SOCs - e.g. imx287.
> 
> Signed-off-by: Lukasz Majewski <lukma@denx.de>
> ---
> Changes for v2:
> - Rename the file to match exactly the compatible
>   (nxp,imx287-mtip-switch)
> 
> Changes for v3:
> - Remove '-' from const:'nxp,imx287-mtip-switch'
> - Use '^port@[12]+$' for port patternProperties
> - Drop status = "okay";
> - Provide proper indentation for 'example' binding (replace 8
>   spaces with 4 spaces)
> - Remove smsc,disable-energy-detect; property
> - Remove interrupt-parent and interrupts properties as not required
> - Remove #address-cells and #size-cells from required properties check
> - remove description from reg:
> - Add $ref: ethernet-switch.yaml#
> 
> Changes for v4:
> - Use $ref: ethernet-switch.yaml#/$defs/ethernet-ports and remove already
>   referenced properties
> - Rename file to nxp,imx28-mtip-switch.yaml
> 
> Changes for v5:
> - Provide proper description for 'ethernet-port' node
> ---
>  .../bindings/net/nxp,imx28-mtip-switch.yaml   | 141 ++++++++++++++++++
>  1 file changed, 141 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> new file mode 100644
> index 000000000000..6f2b5a277ac2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> @@ -0,0 +1,141 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/nxp,imx28-mtip-switch.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP SoC Ethernet Switch Controller (L2 MoreThanIP switch)
> +
> +maintainers:
> +  - Lukasz Majewski <lukma@denx.de>
> +
> +description:
> +  The 2-port switch ethernet subsystem provides ethernet packet (L2)
> +  communication and can be configured as an ethernet switch. It provides the
> +  reduced media independent interface (RMII), the management data input
> +  output (MDIO) for physical layer device (PHY) management.
> +
> +$ref: ethernet-switch.yaml#/$defs/ethernet-ports
> +
> +properties:
> +  compatible:
> +    const: nxp,imx28-mtip-switch
> +
> +  reg:
> +    maxItems: 1
> +
> +  phy-supply:
> +    description:
> +      Regulator that powers Ethernet PHYs.
> +
> +  clocks:
> +    items:
> +      - description: Register accessing clock
> +      - description: Bus access clock
> +      - description: Output clock for external device - e.g. PHY source clock
> +      - description: IEEE1588 timer clock
> +
> +  clock-names:
> +    items:
> +      - const: ipg
> +      - const: ahb
> +      - const: enet_out
> +      - const: ptp
> +
> +  interrupts:
> +    items:
> +      - description: Switch interrupt
> +      - description: ENET0 interrupt
> +      - description: ENET1 interrupt
> +
> +  pinctrl-names: true
> +
> +  ethernet-ports:
> +    type: object
> +    additionalProperties: true
> +    properties:
> +      ethernet-port:
> +        type: object
> +        unevaluatedProperties: false

This is going to fail if you have any property other than 'reg'. But 
then it will never be applied because you never have a node called
'ethernet-port' since you have more than 1 child node. You need this 
under 'patternProperties' and 'additionalProperties: true' instead. And 
please test some of the requirements here. Like a reg value of 3 or 
remove 'phy-mode'.

> +
> +        properties:
> +          reg:
> +            items:
> +              - enum: [1, 2]
> +            description: MTIP L2 switch port number
> +
> +        required:
> +          - reg
> +          - label
> +          - phy-mode
> +          - phy-handle
Re: [net-next v5 1/6] dt-bindings: net: Add MTIP L2 switch description
Posted by Lukasz Majewski 8 months, 1 week ago 
Hi Rob,

> On Mon, Apr 14, 2025 at 04:01:23PM +0200, Lukasz Majewski wrote:
> > This patch provides description of the MTIP L2 switch available in
> > some NXP's SOCs - e.g. imx287.
> > 
> > Signed-off-by: Lukasz Majewski <lukma@denx.de>
> > ---
> > Changes for v2:
> > - Rename the file to match exactly the compatible
> >   (nxp,imx287-mtip-switch)
> > 
> > Changes for v3:
> > - Remove '-' from const:'nxp,imx287-mtip-switch'
> > - Use '^port@[12]+$' for port patternProperties
> > - Drop status = "okay";
> > - Provide proper indentation for 'example' binding (replace 8
> >   spaces with 4 spaces)
> > - Remove smsc,disable-energy-detect; property
> > - Remove interrupt-parent and interrupts properties as not required
> > - Remove #address-cells and #size-cells from required properties
> > check
> > - remove description from reg:
> > - Add $ref: ethernet-switch.yaml#
> > 
> > Changes for v4:
> > - Use $ref: ethernet-switch.yaml#/$defs/ethernet-ports and remove
> > already referenced properties
> > - Rename file to nxp,imx28-mtip-switch.yaml
> > 
> > Changes for v5:
> > - Provide proper description for 'ethernet-port' node
> > ---
> >  .../bindings/net/nxp,imx28-mtip-switch.yaml   | 141
> > ++++++++++++++++++ 1 file changed, 141 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> > b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> > new file mode 100644 index 000000000000..6f2b5a277ac2 --- /dev/null
> > +++
> > b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> > @@ -0,0 +1,141 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR
> > BSD-2-Clause) +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/nxp,imx28-mtip-switch.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: NXP SoC Ethernet Switch Controller (L2 MoreThanIP switch)
> > +
> > +maintainers:
> > +  - Lukasz Majewski <lukma@denx.de>
> > +
> > +description:
> > +  The 2-port switch ethernet subsystem provides ethernet packet
> > (L2)
> > +  communication and can be configured as an ethernet switch. It
> > provides the
> > +  reduced media independent interface (RMII), the management data
> > input
> > +  output (MDIO) for physical layer device (PHY) management.
> > +
> > +$ref: ethernet-switch.yaml#/$defs/ethernet-ports
> > +
> > +properties:
> > +  compatible:
> > +    const: nxp,imx28-mtip-switch
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  phy-supply:
> > +    description:
> > +      Regulator that powers Ethernet PHYs.
> > +
> > +  clocks:
> > +    items:
> > +      - description: Register accessing clock
> > +      - description: Bus access clock
> > +      - description: Output clock for external device - e.g. PHY
> > source clock
> > +      - description: IEEE1588 timer clock
> > +
> > +  clock-names:
> > +    items:
> > +      - const: ipg
> > +      - const: ahb
> > +      - const: enet_out
> > +      - const: ptp
> > +
> > +  interrupts:
> > +    items:
> > +      - description: Switch interrupt
> > +      - description: ENET0 interrupt
> > +      - description: ENET1 interrupt
> > +
> > +  pinctrl-names: true
> > +
> > +  ethernet-ports:
> > +    type: object
> > +    additionalProperties: true
> > +    properties:
> > +      ethernet-port:
> > +        type: object
> > +        unevaluatedProperties: false  
> 
> This is going to fail if you have any property other than 'reg'.

The DT schema check shall fail when reg is not equal to 1 or 2, as this
switch has only two ports.

> But 
> then it will never be applied because you never have a node called
> 'ethernet-port' since you have more than 1 child node.
> You need this 
> under 'patternProperties' and 'additionalProperties: true' instead.
> And please test some of the requirements here. Like a reg value of 3
> or remove 'phy-mode'.

In linux-next we now also have realtek,rtl9301-switch.yaml which uses
just:

properties:
  ethernet-ports:
    type: object

but when in "examples" I do remove for example "phy-handle" the command:
make dt_binding_check DT_SCHEMA_FILES=realtek,rtl9301-switch.yaml

is executed without errors.


IMHO the problem is with proper usage of
$ref: ethernet-switch.yaml#/$defs/ethernet-ports

which shall in my case be extended to have:
$ref: ethernet-switch.yaml#/$defs/ethernet-ports/patternProperties

In the case of MTIP - the following SCHEMA description shall be used:

  ethernet-ports:
    type: object
    $ref: ethernet-switch.yaml#/$defs/ethernet-ports/patternProperties
    additionalProperties: true

    patternProperties:
      '^ethernet-port@[12]$':
        type: object
        additionalProperties: true
        properties:
          reg:
            items:
              - enum: [1, 2]
            description: MTIP L2 switch port number

        required:
          - reg
          - label
          - phy-mode
          - phy-handle


And then, when I remove from 'example:' the 'label':

make dt_binding_check DT_SCHEMA_FILES=nxp,imx28-mtip-switch.yaml
/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.example.dtb:
switch@800f0000: ethernet-ports:ethernet-port@2: 'label' is a required
property from schema $id:
http://devicetree.org/schemas/net/nxp,imx28-mtip-switch.yaml#
/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.example.dtb:
switch@800f0000: Unevaluated properties are not allowed
('ethernet-ports' was unexpected) from schema $id:
http://devicetree.org/schemas/net/nxp,imx28-mtip-switch.yaml#

or when reg = <3>;

Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.example.dtb:
switch@800f0000: ethernet-ports:ethernet-port@2:reg:0:0: 3 is not one
of [1, 2]

When I do use the untouched example: node - it compiles without errors.

I do guess that this is the expected behaviour... :-)

> 
> > +
> > +        properties:
> > +          reg:
> > +            items:
> > +              - enum: [1, 2]
> > +            description: MTIP L2 switch port number
> > +
> > +        required:
> > +          - reg
> > +          - label
> > +          - phy-mode
> > +          - phy-handle  




Best regards,

Lukasz Majewski

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