diff mbox series

[net-next,2/2] dt-bindings: net: adin1110: Add docs

Message ID 20220624200628.77047-3-alexandru.tachici@analog.com
State Changes Requested, archived
Headers show
Series net: ethernet: adi: Add ADIN1110 support | expand

Checks

Context Check Description
robh/checkpatch success
robh/patch-applied success
robh/dt-meta-schema fail build log

Commit Message

Alexandru Tachici June 24, 2022, 8:06 p.m. UTC
From: Alexandru Tachici <alexandru.tachici@analog.com>

Add bindings for the ADIN1110/2111 MAC-PHY/SWITCH.

Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
---
 .../devicetree/bindings/net/adi,adin1110.yaml | 127 ++++++++++++++++++
 1 file changed, 127 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/adi,adin1110.yaml

Comments

Krzysztof Kozlowski June 25, 2022, 8:59 p.m. UTC | #1
On 24/06/2022 22:06, alexandru.tachici@analog.com wrote:
> From: Alexandru Tachici <alexandru.tachici@analog.com>
> 
> Add bindings for the ADIN1110/2111 MAC-PHY/SWITCH.
> 
> Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
> ---
>  .../devicetree/bindings/net/adi,adin1110.yaml | 127 ++++++++++++++++++
>  1 file changed, 127 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/adi,adin1110.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/adi,adin1110.yaml b/Documentation/devicetree/bindings/net/adi,adin1110.yaml
> new file mode 100644
> index 000000000000..0ac18dd62e5a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/adi,adin1110.yaml
> @@ -0,0 +1,127 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/net/adi,adin1110.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"

No quotes in both of above.

> +
> +title: ADI ADIN1110 MAC-PHY
> +
> +allOf:

allOf goes after description.

> +  - $ref: ethernet-controller.yaml#
> +  - $ref: spi-controller.yaml#

From the description it looks it is SPI device, not a controller.

> +
> +maintainers:
> +  - Alexandru Tachici <alexandru.tachici@analog.com>
> +
> +description: |
> +  The ADIN1110 is a low power single port 10BASE-T1L MAC-
> +  PHY designed for industrial Ethernet applications. It integrates
> +  an Ethernet PHY core with a MAC and all the associated analog
> +  circuitry, input and output clock buffering.
> +
> +  The ADIN2111 is a low power, low complexity, two-Ethernet ports
> +  switch with integrated 10BASE-T1L PHYs and one serial peripheral
> +  interface (SPI) port. The device is designed for industrial Ethernet
> +  applications using low power constrained nodes and is compliant
> +  with the IEEE 802.3cg-2019 Ethernet standard for long reach
> +  10 Mbps single pair Ethernet (SPE).
> +
> +  The device has a 4-wire SPI interface for communication
> +  between the MAC and host processor.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,adin1110
> +      - adi,adin2111
> +
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 0
> +
> +  reg:
> +    maxItems: 1
> +
> +  adi,spi-crc:
> +    description: |
> +      Enable CRC8 checks on SPI read/writes.
> +    type: boolean
> +
> +  interrupts:
> +    maxItems: 1
> +
> +patternProperties:
> +  "^phy@[0-1]$":

[01] is shorter

"phy" child node is deprecated, so phy@0 and phy@1, I think, as well.
Look how other ethernet controllers are doing it.

> +    description: |
> +      ADIN1100 PHY that is present on the same chip as the MAC.
> +    type: object
> +
> +    properties:
> +      reg:

maxItems:1

> +        items:
> +          maximum: 1
> +
> +    allOf:
> +      - if:
> +          properties:
> +            compatible:

I am not sure this works correctly... You reference here parent
properties but then change them to some other compatible?

Did you actually test that this works as it should?

> +              contains:
> +                const: adi,adin1110
> +        then:
> +          properties:
> +            compatible:
> +              const: ethernet-phy-id0283.bc91
> +        else:
> +          properties:
> +            compatible:
> +              const: ethernet-phy-id0283.bca1
> +
> +    required:
> +      - compatible
> +      - reg
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - phy@0
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +        spi0 {

1. spi, not spi0
2. Wrong indentation. Use 4 spaces for DTS example.


> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +                status = "okay";

This is not needed.

> +
> +                ethernet@0 {
> +                        compatible = "adi,adin2111";
> +                        reg = <0>;
> +                        spi-max-frequency = <24500000>;
> +
> +                        adi,spi-crc;
> +
> +                        #address-cells = <1>;
> +                        #size-cells = <0>;
> +
> +                        interrupt-parent = <&gpio>;
> +                        interrupts = <25 2>;

"2" looks like interrupt flag, so use it.

> +
> +                        mac-address = [ ca 2f b7 10 23 63 ];

This should be rather some 00 11 22 type of MAC, or you expect to encode
same MAC in several devices?

> +
> +                        phy@0 {
> +                                #phy-cells = <0>;
> +                                compatible = "ethernet-phy-id0283.bca1";
> +                                reg = <0>;
> +                        };
> +
> +                        phy@1 {
> +                                #phy-cells = <0>;
> +                                compatible = "ethernet-phy-id0283.bca1";
> +                                reg = <1>;
> +                        };
> +                };
> +        };


Best regards,
Krzysztof
Andrew Lunn June 26, 2022, 10:06 a.m. UTC | #2
> +patternProperties:
> +  "^phy@[0-1]$":
> +    description: |
> +      ADIN1100 PHY that is present on the same chip as the MAC.
> +    type: object
> +
> +    properties:
> +      reg:
> +        items:
> +          maximum: 1
> +
> +    allOf:
> +      - if:
> +          properties:
> +            compatible:
> +              contains:
> +                const: adi,adin1110
> +        then:
> +          properties:
> +            compatible:
> +              const: ethernet-phy-id0283.bc91
> +        else:
> +          properties:
> +            compatible:
> +              const: ethernet-phy-id0283.bca1
> +
> +    required:
> +      - compatible
> +      - reg

Why is any of this needed? You register an MDIO bus and then use the
PHY at address 0 or 1. phylib should find the PHY and read its ID
register to load the driver. So i don't think there is anything useful
here.

	Andrew
Rob Herring June 27, 2022, 1:31 p.m. UTC | #3
On Fri, 24 Jun 2022 23:06:28 +0300, alexandru.tachici@analog.com wrote:
> From: Alexandru Tachici <alexandru.tachici@analog.com>
> 
> Add bindings for the ADIN1110/2111 MAC-PHY/SWITCH.
> 
> Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
> ---
>  .../devicetree/bindings/net/adi,adin1110.yaml | 127 ++++++++++++++++++
>  1 file changed, 127 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/adi,adin1110.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
./Documentation/devicetree/bindings/net/adi,adin1110.yaml: Unable to find schema file matching $id: http://devicetree.org/schemas/net/spi-controller.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/net/adi,adin1110.example.dtb: ethernet@0: False schema does not allow {'compatible': ['adi,adin2111'], 'reg': [[0]], 'spi-max-frequency': [[24500000]], 'adi,spi-crc': True, '#address-cells': [[1]], '#size-cells': [[0]], 'interrupts': [[25, 2]], 'mac-address': [[202, 47, 183, 16, 35, 99]], 'phy@0': {'#phy-cells': [[0]], 'compatible': ['ethernet-phy-id0283.bca1'], 'reg': [[0]]}, 'phy@1': {'#phy-cells': [[0]], 'compatible': ['ethernet-phy-id0283.bca1'], 'reg': [[1]]}, '$nodename': ['ethernet@0']}
	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/net/adi,adin1110.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

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.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/net/adi,adin1110.yaml b/Documentation/devicetree/bindings/net/adi,adin1110.yaml
new file mode 100644
index 000000000000..0ac18dd62e5a
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/adi,adin1110.yaml
@@ -0,0 +1,127 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/net/adi,adin1110.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: ADI ADIN1110 MAC-PHY
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+  - $ref: spi-controller.yaml#
+
+maintainers:
+  - Alexandru Tachici <alexandru.tachici@analog.com>
+
+description: |
+  The ADIN1110 is a low power single port 10BASE-T1L MAC-
+  PHY designed for industrial Ethernet applications. It integrates
+  an Ethernet PHY core with a MAC and all the associated analog
+  circuitry, input and output clock buffering.
+
+  The ADIN2111 is a low power, low complexity, two-Ethernet ports
+  switch with integrated 10BASE-T1L PHYs and one serial peripheral
+  interface (SPI) port. The device is designed for industrial Ethernet
+  applications using low power constrained nodes and is compliant
+  with the IEEE 802.3cg-2019 Ethernet standard for long reach
+  10 Mbps single pair Ethernet (SPE).
+
+  The device has a 4-wire SPI interface for communication
+  between the MAC and host processor.
+
+properties:
+  compatible:
+    enum:
+      - adi,adin1110
+      - adi,adin2111
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+  reg:
+    maxItems: 1
+
+  adi,spi-crc:
+    description: |
+      Enable CRC8 checks on SPI read/writes.
+    type: boolean
+
+  interrupts:
+    maxItems: 1
+
+patternProperties:
+  "^phy@[0-1]$":
+    description: |
+      ADIN1100 PHY that is present on the same chip as the MAC.
+    type: object
+
+    properties:
+      reg:
+        items:
+          maximum: 1
+
+    allOf:
+      - if:
+          properties:
+            compatible:
+              contains:
+                const: adi,adin1110
+        then:
+          properties:
+            compatible:
+              const: ethernet-phy-id0283.bc91
+        else:
+          properties:
+            compatible:
+              const: ethernet-phy-id0283.bca1
+
+    required:
+      - compatible
+      - reg
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - phy@0
+
+unevaluatedProperties: false
+
+examples:
+  - |
+        spi0 {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                status = "okay";
+
+                ethernet@0 {
+                        compatible = "adi,adin2111";
+                        reg = <0>;
+                        spi-max-frequency = <24500000>;
+
+                        adi,spi-crc;
+
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+
+                        interrupt-parent = <&gpio>;
+                        interrupts = <25 2>;
+
+                        mac-address = [ ca 2f b7 10 23 63 ];
+
+                        phy@0 {
+                                #phy-cells = <0>;
+                                compatible = "ethernet-phy-id0283.bca1";
+                                reg = <0>;
+                        };
+
+                        phy@1 {
+                                #phy-cells = <0>;
+                                compatible = "ethernet-phy-id0283.bca1";
+                                reg = <1>;
+                        };
+                };
+        };