linux-kernel - Re: [PATCH net-next v4 12/12] dt-bindings: net: add Microchip's LAN865X 10BASE-T1S MACPHY

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Date: Thu, 18 Apr 2024 16:39:52 +0100
From: Conor Dooley <conor@...nel.org>
To: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
	pabeni@...hat.com, horms@...nel.org, saeedm@...dia.com,
	anthony.l.nguyen@...el.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, andrew@...n.ch, corbet@....net,
	linux-doc@...r.kernel.org, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
	devicetree@...r.kernel.org, horatiu.vultur@...rochip.com,
	ruanjinjie@...wei.com, steen.hegelund@...rochip.com,
	vladimir.oltean@....com, UNGLinuxDriver@...rochip.com,
	Thorsten.Kummermehr@...rochip.com, Pier.Beruto@...emi.com,
	Selvamani.Rajagopal@...emi.com, Nicolas.Ferre@...rochip.com,
	benjamin.bigler@...nformulastudent.ch
Subject: Re: [PATCH net-next v4 12/12] dt-bindings: net: add Microchip's
 LAN865X 10BASE-T1S MACPHY

On Thu, Apr 18, 2024 at 06:26:48PM +0530, Parthiban Veerasooran wrote:
> The LAN8650/1 combines a Media Access Controller (MAC) and an Ethernet
> PHY to enable 10BASE-T1S networks. The Ethernet Media Access Controller
> (MAC) module implements a 10 Mbps half duplex Ethernet MAC, compatible
> with the IEEE 802.3 standard and a 10BASE-T1S physical layer transceiver
> integrated into the LAN8650/1. The communication between the Host and the
> MAC-PHY is specified in the OPEN Alliance 10BASE-T1x MACPHY Serial
> Interface (TC6).
> 
> Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
> ---
>  .../bindings/net/microchip,lan865x.yaml       | 80 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 81 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/microchip,lan865x.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/microchip,lan865x.yaml b/Documentation/devicetree/bindings/net/microchip,lan865x.yaml
> new file mode 100644
> index 000000000000..4fdec0ba3532
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/microchip,lan865x.yaml

Filename matching a compatible please.


> @@ -0,0 +1,80 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/microchip,lan865x.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip LAN8650/1 10BASE-T1S MACPHY Ethernet Controllers
> +
> +maintainers:
> +  - Parthiban Veerasooran <parthiban.veerasooran@...rochip.com>
> +
> +description:
> +  The LAN8650/1 combines a Media Access Controller (MAC) and an Ethernet
> +  PHY to enable 10BASE‑T1S networks. The Ethernet Media Access Controller
> +  (MAC) module implements a 10 Mbps half duplex Ethernet MAC, compatible
> +  with the IEEE 802.3 standard and a 10BASE-T1S physical layer transceiver
> +  integrated into the LAN8650/1. The communication between the Host and
> +  the MAC-PHY is specified in the OPEN Alliance 10BASE-T1x MACPHY Serial
> +  Interface (TC6).
> +
> +allOf:
> +  - $ref: ethernet-controller.yaml#
> +  - $ref: /schemas/spi/spi-peripheral-props.yaml#

Can you use the same referencing style for both elements here please?


Otherwise, looks aight to me, so with those fixed:
Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Thanks,
Conor.


> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - const: microchip,lan8650
> +      - items:
> +          - const: microchip,lan8651
> +          - const: microchip,lan8650
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    description:
> +      Interrupt from MAC-PHY asserted in the event of Receive Chunks
> +      Available, Transmit Chunk Credits Available and Extended Status
> +      Event.
> +    maxItems: 1
> +
> +  spi-max-frequency:
> +    minimum: 15000000
> +    maximum: 25000000
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - spi-max-frequency
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    spi {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      ethernet@0 {
> +        compatible = "microchip,lan8651", "microchip,lan8650";
> +        reg = <0>;
> +        pinctrl-names = "default";
> +        pinctrl-0 = <&eth0_pins>;
> +        interrupt-parent = <&gpio>;
> +        interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
> +        local-mac-address = [04 05 06 01 02 03];
> +        spi-max-frequency = <15000000>;
> +      };
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index f41b7f2257d2..2172431a1935 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -14378,6 +14378,7 @@ MICROCHIP LAN8650/1 10BASE-T1S MACPHY ETHERNET DRIVER
>  M:	Parthiban Veerasooran <parthiban.veerasooran@...rochip.com>
>  L:	netdev@...r.kernel.org
>  S:	Maintained
> +F:	Documentation/devicetree/bindings/net/microchip,lan865x.yaml
>  F:	drivers/net/ethernet/microchip/lan865x/lan865x.c
>  
>  MICROCHIP LAN87xx/LAN937x T1 PHY DRIVER
> -- 
> 2.34.1
> 

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