linux-kernel - Re: [PATCH net-next v7 14/14] dt-bindings: net: add Microchip's LAN865X 10BASE-T1S MACPHY

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Message-ID: <5deb6cc9-a3fb-4e5d-9750-bd7e39215e17@microchip.com>
Date: Wed, 4 Sep 2024 12:51:49 +0000
From: <Parthiban.Veerasooran@...rochip.com>
To: <robh@...nel.org>
CC: <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
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Subject: Re: [PATCH net-next v7 14/14] dt-bindings: net: add Microchip's
 LAN865X 10BASE-T1S MACPHY

Hi Rob,

On 03/09/24 8:13 pm, Rob Herring wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On Tue, Sep 03, 2024 at 04:17:05PM +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).
>>
>> Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
>> Reviewed-by: Andrew Lunn <andrew@...n.ch>
>> Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
>> ---
>>   .../bindings/net/microchip,lan8650.yaml       | 80 +++++++++++++++++++
>>   MAINTAINERS                                   |  1 +
>>   2 files changed, 81 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/net/microchip,lan8650.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/net/microchip,lan8650.yaml b/Documentation/devicetree/bindings/net/microchip,lan8650.yaml
>> new file mode 100644
>> index 000000000000..b7b755b27b78
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/net/microchip,lan8650.yaml
>> @@ -0,0 +1,80 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/net/microchip,lan8650.yaml#
>> +$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: /schemas/net/ethernet-controller.yaml#
>> +  - $ref: /schemas/spi/spi-peripheral-props.yaml#
>> +
>> +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
> 
> What are these for? They apply to child nodes, yet you have no child
> nodes defined.
Ah yes, thanks for pointing it out. By mistake they are added by 
referring spi node. I will remove them in the next version.

Best regards,
Parthiban V
> 
> Rob