[PATCH v1 1/2] dt-bindings: net: micrel: Convert to DT schema

[PATCH v1 1/2] dt-bindings: net: micrel: Convert to DT schema

[Stefan Eichenberger]

From: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Convert the devicetree bindings for the Micrel PHYs and switches to DT
schema.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
---
 .../devicetree/bindings/net/micrel.txt        |  57 --------
 .../devicetree/bindings/net/micrel.yaml       | 132 ++++++++++++++++++
 2 files changed, 132 insertions(+), 57 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/net/micrel.txt
 create mode 100644 Documentation/devicetree/bindings/net/micrel.yaml

diff --git a/Documentation/devicetree/bindings/net/micrel.txt b/Documentation/devicetree/bindings/net/micrel.txt
deleted file mode 100644
index 01622ce58112e..0000000000000
--- a/Documentation/devicetree/bindings/net/micrel.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-Micrel PHY properties.
-
-These properties cover the base properties Micrel PHYs.
-
-Optional properties:
-
- - micrel,led-mode : LED mode value to set for PHYs with configurable LEDs.
-
-	Configure the LED mode with single value. The list of PHYs and the
-	bits that are currently supported:
-
-	KSZ8001: register 0x1e, bits 15..14
-	KSZ8041: register 0x1e, bits 15..14
-	KSZ8021: register 0x1f, bits 5..4
-	KSZ8031: register 0x1f, bits 5..4
-	KSZ8051: register 0x1f, bits 5..4
-	KSZ8081: register 0x1f, bits 5..4
-	KSZ8091: register 0x1f, bits 5..4
-	LAN8814: register EP5.0, bit 6
-
-	See the respective PHY datasheet for the mode values.
-
- - micrel,rmii-reference-clock-select-25-mhz: RMII Reference Clock Select
-						bit selects 25 MHz mode
-
-	Setting the RMII Reference Clock Select bit enables 25 MHz rather
-	than 50 MHz clock mode.
-
-	Note that this option is only needed for certain PHY revisions with a
-	non-standard, inverted function of this configuration bit.
-	Specifically, a clock reference ("rmii-ref" below) is always needed to
-	actually select a mode.
-
- - clocks, clock-names: contains clocks according to the common clock bindings.
-
-	supported clocks:
-	- KSZ8021, KSZ8031, KSZ8081, KSZ8091: "rmii-ref": The RMII reference
-	  input clock. Used to determine the XI input clock.
-
- - micrel,fiber-mode: If present the PHY is configured to operate in fiber mode
-
-	Some PHYs, such as the KSZ8041FTL variant, support fiber mode, enabled
-	by the FXEN boot strapping pin. It can't be determined from the PHY
-	registers whether the PHY is in fiber mode, so this boolean device tree
-	property can be used to describe it.
-
-	In fiber mode, auto-negotiation is disabled and the PHY can only work in
-	100base-fx (full and half duplex) modes.
-
- - coma-mode-gpios: If present the given gpio will be deasserted when the
-		    PHY is probed.
-
-	Some PHYs have a COMA mode input pin which puts the PHY into
-	isolate and power-down mode. On some boards this input is connected
-	to a GPIO of the SoC.
-
-	Supported on the LAN8814.
diff --git a/Documentation/devicetree/bindings/net/micrel.yaml b/Documentation/devicetree/bindings/net/micrel.yaml
new file mode 100644
index 0000000000000..a8e532fbcb6f5
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/micrel.yaml
@@ -0,0 +1,132 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/micrel.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Micrel KSZ series PHYs and switches
+
+maintainers:
+  - Andrew Lunn <andrew@lunn.ch>
+  - Stefan Eichenberger <eichest@gmail.com>
+
+description: |
+  The Micrel KSZ series contains different network phys and switches.
+
+properties:
+  compatible:
+    enum:
+      - ethernet-phy-id000e.7237  # KSZ8873MLL
+      - ethernet-phy-id0022.1430  # KSZ886X
+      - ethernet-phy-id0022.1435  # KSZ8863
+      - ethernet-phy-id0022.1510  # KSZ8041
+      - ethernet-phy-id0022.1537  # KSZ8041RNLI
+      - ethernet-phy-id0022.1550  # KSZ8051
+      - ethernet-phy-id0022.1555  # KSZ8021
+      - ethernet-phy-id0022.1556  # KSZ8031
+      - ethernet-phy-id0022.1560  # KSZ8081, KSZ8091
+      - ethernet-phy-id0022.1570  # KSZ8061
+      - ethernet-phy-id0022.161a  # KSZ8001
+      - ethernet-phy-id0022.1720  # KS8737
+  micrel,fiber-mode:
+    type: boolean
+    description: |
+      If present the PHY is configured to operate in fiber mode.
+
+      The KSZ8041FTL variant supports fiber mode, enabled by the FXEN
+      boot strapping pin. It can't be determined from the PHY registers
+      whether the PHY is in fiber mode, so this boolean device tree
+      property can be used to describe it.
+
+      In fiber mode, auto-negotiation is disabled and the PHY can only
+      work in 100base-fx (full and half duplex) modes.
+  micrel,led-mode:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      LED mode value to set for PHYs with configurable LEDs.
+
+      Configure the LED mode with single value. The list of PHYs and the
+      bits that are currently supported:
+
+      KSZ8001: register 0x1e, bits 15..14
+      KSZ8041: register 0x1e, bits 15..14
+      KSZ8021: register 0x1f, bits 5..4
+      KSZ8031: register 0x1f, bits 5..4
+      KSZ8051: register 0x1f, bits 5..4
+      KSZ8081: register 0x1f, bits 5..4
+      KSZ8091: register 0x1f, bits 5..4
+
+      See the respective PHY datasheet for the mode values.
+    minimum: 0
+    maximum: 3
+
+allOf:
+  - $ref: ethernet-phy.yaml#
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              const: ethernet-phy-id0022.1510
+    then:
+      properties:
+        micrel,fiber-mode: false
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - ethernet-phy-id0022.1510
+                - ethernet-phy-id0022.1555
+                - ethernet-phy-id0022.1556
+                - ethernet-phy-id0022.1550
+                - ethernet-phy-id0022.1560
+                - ethernet-phy-id0022.161a
+    then:
+      properties:
+        micrel,led-mode: false
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - ethernet-phy-id0022.1555
+              - ethernet-phy-id0022.1556
+              - ethernet-phy-id0022.1560
+    then:
+      properties:
+        clocks:
+          maxItems: 1
+        clock-names:
+          const: rmii-ref
+          description: |
+            supported clocks:
+              - The RMII reference input clock. Used to determine the XI
+                input clock.
+        micrel,rmii-reference-clock-select-25-mhz:
+          type: boolean
+          description: |
+            RMII Reference Clock Select bit selects 25 MHz mode
+
+            Setting the RMII Reference Clock Select bit enables 25 MHz rather
+            than 50 MHz clock mode.
+
+dependentRequired:
+  micrel,rmii-reference-clock-select-25-mhz: [ clock-names ]
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    ethernet {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ethernet-phy@5 {
+            compatible = "ethernet-phy-id0022.1510";
+            reg = <5>;
+            micrel,led-mode = <2>;
+            micrel,fiber-mode;
+        };
+    };
-- 
2.51.0

Re: [PATCH v1 1/2] dt-bindings: net: micrel: Convert to DT schema

[Andrew Lunn]

> +examples:
> +  - |
> +    ethernet {

This should be an mdio node, not an ethernet node.

     Andrew

Re: [PATCH v1 1/2] dt-bindings: net: micrel: Convert to DT schema

[Rob Herring (Arm)]

On Tue, 23 Dec 2025 14:33:39 +0100, Stefan Eichenberger wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> Convert the devicetree bindings for the Micrel PHYs and switches to DT
> schema.
> 
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> ---
>  .../devicetree/bindings/net/micrel.txt        |  57 --------
>  .../devicetree/bindings/net/micrel.yaml       | 132 ++++++++++++++++++
>  2 files changed, 132 insertions(+), 57 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/net/micrel.txt
>  create mode 100644 Documentation/devicetree/bindings/net/micrel.yaml
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/renesas,ether.example.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
	from schema $id: http://devicetree.org/schemas/net/micrel.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20251223133446.22401-2-eichest@gmail.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.

Re: [PATCH v1 1/2] dt-bindings: net: micrel: Convert to DT schema

[Rob Herring]

On Tue, Dec 23, 2025 at 02:33:39PM +0100, Stefan Eichenberger wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> Convert the devicetree bindings for the Micrel PHYs and switches to DT
> schema.
> 
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> ---
>  .../devicetree/bindings/net/micrel.txt        |  57 --------
>  .../devicetree/bindings/net/micrel.yaml       | 132 ++++++++++++++++++
>  2 files changed, 132 insertions(+), 57 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/net/micrel.txt
>  create mode 100644 Documentation/devicetree/bindings/net/micrel.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/micrel.txt b/Documentation/devicetree/bindings/net/micrel.txt
> deleted file mode 100644
> index 01622ce58112e..0000000000000
> --- a/Documentation/devicetree/bindings/net/micrel.txt
> +++ /dev/null
> @@ -1,57 +0,0 @@
> -Micrel PHY properties.
> -
> -These properties cover the base properties Micrel PHYs.
> -
> -Optional properties:
> -
> - - micrel,led-mode : LED mode value to set for PHYs with configurable LEDs.
> -
> -	Configure the LED mode with single value. The list of PHYs and the
> -	bits that are currently supported:
> -
> -	KSZ8001: register 0x1e, bits 15..14
> -	KSZ8041: register 0x1e, bits 15..14
> -	KSZ8021: register 0x1f, bits 5..4
> -	KSZ8031: register 0x1f, bits 5..4
> -	KSZ8051: register 0x1f, bits 5..4
> -	KSZ8081: register 0x1f, bits 5..4
> -	KSZ8091: register 0x1f, bits 5..4
> -	LAN8814: register EP5.0, bit 6
> -
> -	See the respective PHY datasheet for the mode values.
> -
> - - micrel,rmii-reference-clock-select-25-mhz: RMII Reference Clock Select
> -						bit selects 25 MHz mode
> -
> -	Setting the RMII Reference Clock Select bit enables 25 MHz rather
> -	than 50 MHz clock mode.
> -
> -	Note that this option is only needed for certain PHY revisions with a
> -	non-standard, inverted function of this configuration bit.
> -	Specifically, a clock reference ("rmii-ref" below) is always needed to
> -	actually select a mode.
> -
> - - clocks, clock-names: contains clocks according to the common clock bindings.
> -
> -	supported clocks:
> -	- KSZ8021, KSZ8031, KSZ8081, KSZ8091: "rmii-ref": The RMII reference
> -	  input clock. Used to determine the XI input clock.
> -
> - - micrel,fiber-mode: If present the PHY is configured to operate in fiber mode
> -
> -	Some PHYs, such as the KSZ8041FTL variant, support fiber mode, enabled
> -	by the FXEN boot strapping pin. It can't be determined from the PHY
> -	registers whether the PHY is in fiber mode, so this boolean device tree
> -	property can be used to describe it.
> -
> -	In fiber mode, auto-negotiation is disabled and the PHY can only work in
> -	100base-fx (full and half duplex) modes.
> -
> - - coma-mode-gpios: If present the given gpio will be deasserted when the
> -		    PHY is probed.
> -
> -	Some PHYs have a COMA mode input pin which puts the PHY into
> -	isolate and power-down mode. On some boards this input is connected
> -	to a GPIO of the SoC.
> -
> -	Supported on the LAN8814.
> diff --git a/Documentation/devicetree/bindings/net/micrel.yaml b/Documentation/devicetree/bindings/net/micrel.yaml
> new file mode 100644
> index 0000000000000..a8e532fbcb6f5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/micrel.yaml
> @@ -0,0 +1,132 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/micrel.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Micrel KSZ series PHYs and switches
> +
> +maintainers:
> +  - Andrew Lunn <andrew@lunn.ch>
> +  - Stefan Eichenberger <eichest@gmail.com>
> +
> +description: |

Don't need '|' if no formatting to preserve.

> +  The Micrel KSZ series contains different network phys and switches.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ethernet-phy-id000e.7237  # KSZ8873MLL
> +      - ethernet-phy-id0022.1430  # KSZ886X
> +      - ethernet-phy-id0022.1435  # KSZ8863
> +      - ethernet-phy-id0022.1510  # KSZ8041
> +      - ethernet-phy-id0022.1537  # KSZ8041RNLI
> +      - ethernet-phy-id0022.1550  # KSZ8051
> +      - ethernet-phy-id0022.1555  # KSZ8021
> +      - ethernet-phy-id0022.1556  # KSZ8031
> +      - ethernet-phy-id0022.1560  # KSZ8081, KSZ8091
> +      - ethernet-phy-id0022.1570  # KSZ8061
> +      - ethernet-phy-id0022.161a  # KSZ8001
> +      - ethernet-phy-id0022.1720  # KS8737

blank line

> +  micrel,fiber-mode:
> +    type: boolean
> +    description: |
> +      If present the PHY is configured to operate in fiber mode.
> +
> +      The KSZ8041FTL variant supports fiber mode, enabled by the FXEN
> +      boot strapping pin. It can't be determined from the PHY registers
> +      whether the PHY is in fiber mode, so this boolean device tree
> +      property can be used to describe it.
> +
> +      In fiber mode, auto-negotiation is disabled and the PHY can only
> +      work in 100base-fx (full and half duplex) modes.

blank line

> +  micrel,led-mode:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: |
> +      LED mode value to set for PHYs with configurable LEDs.
> +
> +      Configure the LED mode with single value. The list of PHYs and the
> +      bits that are currently supported:
> +
> +      KSZ8001: register 0x1e, bits 15..14
> +      KSZ8041: register 0x1e, bits 15..14
> +      KSZ8021: register 0x1f, bits 5..4
> +      KSZ8031: register 0x1f, bits 5..4
> +      KSZ8051: register 0x1f, bits 5..4
> +      KSZ8081: register 0x1f, bits 5..4
> +      KSZ8091: register 0x1f, bits 5..4
> +
> +      See the respective PHY datasheet for the mode values.
> +    minimum: 0
> +    maximum: 3
> +
> +allOf:
> +  - $ref: ethernet-phy.yaml#
> +  - if:
> +      not:
> +        properties:
> +          compatible:
> +            contains:
> +              const: ethernet-phy-id0022.1510
> +    then:
> +      properties:
> +        micrel,fiber-mode: false
> +  - if:
> +      not:
> +        properties:
> +          compatible:
> +            contains:
> +              enum:
> +                - ethernet-phy-id0022.1510
> +                - ethernet-phy-id0022.1555
> +                - ethernet-phy-id0022.1556
> +                - ethernet-phy-id0022.1550
> +                - ethernet-phy-id0022.1560
> +                - ethernet-phy-id0022.161a
> +    then:
> +      properties:
> +        micrel,led-mode: false
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - ethernet-phy-id0022.1555
> +              - ethernet-phy-id0022.1556
> +              - ethernet-phy-id0022.1560
> +    then:
> +      properties:
> +        clocks:
> +          maxItems: 1
> +        clock-names:
> +          const: rmii-ref
> +          description: |
> +            supported clocks:

Drop this line.

> +              - The RMII reference input clock. Used to determine the XI
> +                input clock.
> +        micrel,rmii-reference-clock-select-25-mhz:
> +          type: boolean
> +          description: |
> +            RMII Reference Clock Select bit selects 25 MHz mode
> +
> +            Setting the RMII Reference Clock Select bit enables 25 MHz rather
> +            than 50 MHz clock mode.
> +
> +dependentRequired:
> +  micrel,rmii-reference-clock-select-25-mhz: [ clock-names ]
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    ethernet {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        ethernet-phy@5 {
> +            compatible = "ethernet-phy-id0022.1510";
> +            reg = <5>;
> +            micrel,led-mode = <2>;
> +            micrel,fiber-mode;
> +        };
> +    };
> -- 
> 2.51.0
> 

Re: [PATCH v1 1/2] dt-bindings: net: micrel: Convert to DT schema

[kernel test robot]

:::::: 
:::::: Manual check reason: "dtcheck: binding changes may go via different trees"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20251223133446.22401-2-eichest@gmail.com>
References: <20251223133446.22401-2-eichest@gmail.com>
TO: Stefan Eichenberger <eichest@gmail.com>
TO: andrew+netdev@lunn.ch
TO: davem@davemloft.net
TO: edumazet@google.com
TO: kuba@kernel.org
TO: pabeni@redhat.com
TO: robh@kernel.org
TO: krzk+dt@kernel.org
TO: conor+dt@kernel.org
TO: eichest@gmail.com
CC: netdev@vger.kernel.org
CC: devicetree@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: horms@kernel.org
CC: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Hi Stefan,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on net-next/main net/main linus/master v6.19-rc2 next-20251219]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Stefan-Eichenberger/dt-bindings-net-micrel-Convert-to-DT-schema/20251223-213803
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20251223133446.22401-2-eichest%40gmail.com
patch subject: [PATCH v1 1/2] dt-bindings: net: micrel: Convert to DT schema
:::::: branch date: 5 days ago
:::::: commit date: 5 days ago
config: arm-randconfig-2053-20251224 (https://download.01.org/0day-ci/archive/20251228/202512282012.vSNErbW6-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 8.5.0
dtschema version: 2025.12
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251228/202512282012.vSNErbW6-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202512282012.vSNErbW6-lkp@intel.com/

dtcheck warnings: (new ones prefixed by >>)
>> arch/arm/boot/dts/renesas/r8a7743-sk-rzg1m.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): False schema does not allow 1
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
   arch/arm/boot/dts/renesas/r8a7743-sk-rzg1m.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
--
>> arch/arm/boot/dts/renesas/r8a7745-sk-rzg1e.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): False schema does not allow 1
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
   arch/arm/boot/dts/renesas/r8a7745-sk-rzg1e.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
--
>> arch/arm/boot/dts/renesas/r8a7790-lager.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): False schema does not allow 1
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
   arch/arm/boot/dts/renesas/r8a7790-lager.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
--
>> arch/arm/boot/dts/renesas/r8a7790-stout.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): False schema does not allow 1
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
   arch/arm/boot/dts/renesas/r8a7790-stout.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
--
>> arch/arm/boot/dts/renesas/r8a7791-koelsch.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): False schema does not allow 1
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
   arch/arm/boot/dts/renesas/r8a7791-koelsch.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
--
>> arch/arm/boot/dts/renesas/r8a7791-porter.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): False schema does not allow 1
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
   arch/arm/boot/dts/renesas/r8a7791-porter.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
--
>> arch/arm/boot/dts/renesas/r8a7793-gose.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): False schema does not allow 1
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
   arch/arm/boot/dts/renesas/r8a7793-gose.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
--
>> arch/arm/boot/dts/renesas/r8a7794-alt.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): False schema does not allow 1
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
   arch/arm/boot/dts/renesas/r8a7794-alt.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
--
>> arch/arm/boot/dts/renesas/r8a7794-silk.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): False schema does not allow 1
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml
   arch/arm/boot/dts/renesas/r8a7794-silk.dtb: ethernet-phy@1 (ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
   	from schema $id: http://devicetree.org/schemas/net/micrel.yaml

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [PATCH v1 1/2] dt-bindings: net: micrel: Convert to DT schema

[Stefan Eichenberger]

On Tue, Dec 23, 2025 at 03:34:57PM +0100, Andrew Lunn wrote:
> > +examples:
> > +  - |
> > +    ethernet {
> 
> This should be an mdio node, not an ethernet node.

Thanks, I fill fix that in the next version.

Re: [PATCH v1 1/2] dt-bindings: net: micrel: Convert to DT schema

[Stefan Eichenberger]

On Sun, Dec 28, 2025 at 09:36:09AM -0600, Rob Herring wrote:
> On Tue, Dec 23, 2025 at 02:33:39PM +0100, Stefan Eichenberger wrote:
> > From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> > 
> > Convert the devicetree bindings for the Micrel PHYs and switches to DT
> > schema.
> > 
> > Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> > ---
> >  .../devicetree/bindings/net/micrel.txt        |  57 --------
> >  .../devicetree/bindings/net/micrel.yaml       | 132 ++++++++++++++++++
> >  2 files changed, 132 insertions(+), 57 deletions(-)
> >  delete mode 100644 Documentation/devicetree/bindings/net/micrel.txt
> >  create mode 100644 Documentation/devicetree/bindings/net/micrel.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/net/micrel.txt b/Documentation/devicetree/bindings/net/micrel.txt
> > deleted file mode 100644
> > index 01622ce58112e..0000000000000
> > --- a/Documentation/devicetree/bindings/net/micrel.txt
> > +++ /dev/null
> > @@ -1,57 +0,0 @@
> > -Micrel PHY properties.
> > -
> > -These properties cover the base properties Micrel PHYs.
> > -
> > -Optional properties:
> > -
> > - - micrel,led-mode : LED mode value to set for PHYs with configurable LEDs.
> > -
> > -	Configure the LED mode with single value. The list of PHYs and the
> > -	bits that are currently supported:
> > -
> > -	KSZ8001: register 0x1e, bits 15..14
> > -	KSZ8041: register 0x1e, bits 15..14
> > -	KSZ8021: register 0x1f, bits 5..4
> > -	KSZ8031: register 0x1f, bits 5..4
> > -	KSZ8051: register 0x1f, bits 5..4
> > -	KSZ8081: register 0x1f, bits 5..4
> > -	KSZ8091: register 0x1f, bits 5..4
> > -	LAN8814: register EP5.0, bit 6
> > -
> > -	See the respective PHY datasheet for the mode values.
> > -
> > - - micrel,rmii-reference-clock-select-25-mhz: RMII Reference Clock Select
> > -						bit selects 25 MHz mode
> > -
> > -	Setting the RMII Reference Clock Select bit enables 25 MHz rather
> > -	than 50 MHz clock mode.
> > -
> > -	Note that this option is only needed for certain PHY revisions with a
> > -	non-standard, inverted function of this configuration bit.
> > -	Specifically, a clock reference ("rmii-ref" below) is always needed to
> > -	actually select a mode.
> > -
> > - - clocks, clock-names: contains clocks according to the common clock bindings.
> > -
> > -	supported clocks:
> > -	- KSZ8021, KSZ8031, KSZ8081, KSZ8091: "rmii-ref": The RMII reference
> > -	  input clock. Used to determine the XI input clock.
> > -
> > - - micrel,fiber-mode: If present the PHY is configured to operate in fiber mode
> > -
> > -	Some PHYs, such as the KSZ8041FTL variant, support fiber mode, enabled
> > -	by the FXEN boot strapping pin. It can't be determined from the PHY
> > -	registers whether the PHY is in fiber mode, so this boolean device tree
> > -	property can be used to describe it.
> > -
> > -	In fiber mode, auto-negotiation is disabled and the PHY can only work in
> > -	100base-fx (full and half duplex) modes.
> > -
> > - - coma-mode-gpios: If present the given gpio will be deasserted when the
> > -		    PHY is probed.
> > -
> > -	Some PHYs have a COMA mode input pin which puts the PHY into
> > -	isolate and power-down mode. On some boards this input is connected
> > -	to a GPIO of the SoC.
> > -
> > -	Supported on the LAN8814.
> > diff --git a/Documentation/devicetree/bindings/net/micrel.yaml b/Documentation/devicetree/bindings/net/micrel.yaml
> > new file mode 100644
> > index 0000000000000..a8e532fbcb6f5
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/micrel.yaml
> > @@ -0,0 +1,132 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/micrel.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Micrel KSZ series PHYs and switches
> > +
> > +maintainers:
> > +  - Andrew Lunn <andrew@lunn.ch>
> > +  - Stefan Eichenberger <eichest@gmail.com>
> > +
> > +description: |
> 
> Don't need '|' if no formatting to preserve.
> 
> > +  The Micrel KSZ series contains different network phys and switches.
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - ethernet-phy-id000e.7237  # KSZ8873MLL
> > +      - ethernet-phy-id0022.1430  # KSZ886X
> > +      - ethernet-phy-id0022.1435  # KSZ8863
> > +      - ethernet-phy-id0022.1510  # KSZ8041
> > +      - ethernet-phy-id0022.1537  # KSZ8041RNLI
> > +      - ethernet-phy-id0022.1550  # KSZ8051
> > +      - ethernet-phy-id0022.1555  # KSZ8021
> > +      - ethernet-phy-id0022.1556  # KSZ8031
> > +      - ethernet-phy-id0022.1560  # KSZ8081, KSZ8091
> > +      - ethernet-phy-id0022.1570  # KSZ8061
> > +      - ethernet-phy-id0022.161a  # KSZ8001
> > +      - ethernet-phy-id0022.1720  # KS8737
> 
> blank line
> 
> > +  micrel,fiber-mode:
> > +    type: boolean
> > +    description: |
> > +      If present the PHY is configured to operate in fiber mode.
> > +
> > +      The KSZ8041FTL variant supports fiber mode, enabled by the FXEN
> > +      boot strapping pin. It can't be determined from the PHY registers
> > +      whether the PHY is in fiber mode, so this boolean device tree
> > +      property can be used to describe it.
> > +
> > +      In fiber mode, auto-negotiation is disabled and the PHY can only
> > +      work in 100base-fx (full and half duplex) modes.
> 
> blank line
> 
> > +  micrel,led-mode:
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +    description: |
> > +      LED mode value to set for PHYs with configurable LEDs.
> > +
> > +      Configure the LED mode with single value. The list of PHYs and the
> > +      bits that are currently supported:
> > +
> > +      KSZ8001: register 0x1e, bits 15..14
> > +      KSZ8041: register 0x1e, bits 15..14
> > +      KSZ8021: register 0x1f, bits 5..4
> > +      KSZ8031: register 0x1f, bits 5..4
> > +      KSZ8051: register 0x1f, bits 5..4
> > +      KSZ8081: register 0x1f, bits 5..4
> > +      KSZ8091: register 0x1f, bits 5..4
> > +
> > +      See the respective PHY datasheet for the mode values.
> > +    minimum: 0
> > +    maximum: 3
> > +
> > +allOf:
> > +  - $ref: ethernet-phy.yaml#
> > +  - if:
> > +      not:
> > +        properties:
> > +          compatible:
> > +            contains:
> > +              const: ethernet-phy-id0022.1510
> > +    then:
> > +      properties:
> > +        micrel,fiber-mode: false
> > +  - if:
> > +      not:
> > +        properties:
> > +          compatible:
> > +            contains:
> > +              enum:
> > +                - ethernet-phy-id0022.1510
> > +                - ethernet-phy-id0022.1555
> > +                - ethernet-phy-id0022.1556
> > +                - ethernet-phy-id0022.1550
> > +                - ethernet-phy-id0022.1560
> > +                - ethernet-phy-id0022.161a
> > +    then:
> > +      properties:
> > +        micrel,led-mode: false
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            enum:
> > +              - ethernet-phy-id0022.1555
> > +              - ethernet-phy-id0022.1556
> > +              - ethernet-phy-id0022.1560
> > +    then:
> > +      properties:
> > +        clocks:
> > +          maxItems: 1
> > +        clock-names:
> > +          const: rmii-ref
> > +          description: |
> > +            supported clocks:
> 
> Drop this line.
> 
> > +              - The RMII reference input clock. Used to determine the XI
> > +                input clock.
> > +        micrel,rmii-reference-clock-select-25-mhz:
> > +          type: boolean
> > +          description: |
> > +            RMII Reference Clock Select bit selects 25 MHz mode
> > +
> > +            Setting the RMII Reference Clock Select bit enables 25 MHz rather
> > +            than 50 MHz clock mode.
> > +
> > +dependentRequired:
> > +  micrel,rmii-reference-clock-select-25-mhz: [ clock-names ]
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > +  - |
> > +    ethernet {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        ethernet-phy@5 {
> > +            compatible = "ethernet-phy-id0022.1510";
> > +            reg = <5>;
> > +            micrel,led-mode = <2>;
> > +            micrel,fiber-mode;
> > +        };
> > +    };

Thanks for the review, I will fix these points in the next version.

Regards,
Stefan