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Message-ID: <5cecd33c-7436-4b2a-84c2-8a28c87b26b3@linaro.org>
Date: Fri, 16 Feb 2024 08:24:45 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: forbidden405@...look.com, Yisen Zhuang <yisen.zhuang@...wei.com>,
 Salil Mehta <salil.mehta@...wei.com>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Yang Xiwen <forbidden405@...mail.com>,
 Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>,
 Russell King <linux@...linux.org.uk>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 devicetree@...r.kernel.org
Subject: Re: [PATCH 4/6] dt-bindings: net: add hisilicon-femac

On 16/02/2024 00:48, Yang Xiwen via B4 Relay wrote:
> From: Yang Xiwen <forbidden405@...look.com>
> 
> This binding gets rewritten. Compared to previous txt based binding doc,
> the following changes are made:
> 
> - No "hisi-femac-v1/2" binding anymore
> - Remove unused Hi3516 SoC, add Hi3798MV200
> - add MDIO subnode
> - add phy clock and reset

I don't understand why conversion you make in two commits. Please
perform proper conversion and then propose changes to the binding.

> 
> Signed-off-by: Yang Xiwen <forbidden405@...look.com>
> ---
>  .../devicetree/bindings/net/hisilicon-femac.yaml   | 125 +++++++++++++++++++++
>  1 file changed, 125 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/hisilicon-femac.yaml b/Documentation/devicetree/bindings/net/hisilicon-femac.yaml
> new file mode 100644
> index 000000000000..008127e148aa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/hisilicon-femac.yaml

Use compatible as filename.

> @@ -0,0 +1,125 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/hisilicon-femac.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Hisilicon Fast Ethernet MAC controller
> +
> +maintainers:
> +  - Yang Xiwen <forbidden405@...mail.com>
> +
> +allOf:
> +  - $ref: ethernet-controller.yaml
> +
> +properties:
> +  compatible:
> +    enum:
> +      - hisilicon,hi3798mv200-femac
> +
> +  reg:
> +    minItems: 2
> +    maxItems: 2
> +    description: |
> +      The first region is the MAC core register base and size.
> +      The second region is the global MAC control register.

Just items: - description: instead of all this.

> +
> +  ranges:
> +    maxItems: 1
> +
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    minItems: 3

Drop

> +    maxItems: 3
> +
> +  clock-names:
> +    items:
> +      - const: mac
> +      - const: macif
> +      - const: phy
> +
> +  resets:
> +    minItems: 2

Drop

> +    maxItems: 2
> +
> +  reset-names:
> +    items:
> +      - const: mac
> +      - const: phy
> +
> +  hisilicon,phy-reset-delays-us:
> +    minItems: 3
> +    maxItems: 3
> +    description: |
> +      The 1st cell is reset pre-delay in micro seconds.
> +      The 2nd cell is reset pulse in micro seconds.
> +      The 3rd cell is reset post-delay in micro seconds.

items:
 - description:

Anyway, isn't this property of the phy?


> +
> +patternProperties:
> +  '^mdio@[0-9a-f]+$':
> +    type: object
> +    description: See ./hisi-femac-mdio.txt

No, please first convert other file and then reference it here.

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - resets
> +  - reset-names
> +  - phy-connection-type
> +  - phy-handle
> +  - hisilicon,phy-reset-delays-us
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/histb-clock.h>
> +
> +    #ifndef HISTB_ETH0_PHY_CLK
> +    #define HISTB_ETH0_PHY_CLK 0
> +    #endif

Drop these defines.

> +    femac: ethernet@...0000 {

Drop label.

> +        compatible = "hisilicon,hi3798mv200-femac";
> +        reg = <0x9c30000 0x1000>, <0x9c31300 0x200>;
> +        ranges = <0x0 0x9c30000 0x10000>;
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +        interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
> +        clocks = <&crg HISTB_ETH0_MAC_CLK>,
> +                 <&crg HISTB_ETH0_MACIF_CLK>,
> +                 <&crg HISTB_ETH0_PHY_CLK>;
> +        clock-names = "mac", "macif", "phy";
> +        resets = <&crg 0xd0 3>, <&crg 0x388 4>;
> +        reset-names = "mac", "phy";
> +        phy-handle = <&fephy>;
> +        phy-connection-type = "mii";
> +        // To be filled by bootloader
> +        mac-address = [00 00 00 00 00 00];
> +        hisilicon,phy-reset-delays-us = <10000 10000 500000>;
> +        status = "okay";

Drop

> +
> +        mdio: mdio@...0 {

Drop label

> +            compatible = "hisilicon,hisi-femac-mdio";
> +            reg = <0x1100 0x20>;
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +            status = "okay";

Drop

> +
> +            fephy: ethernet-phy@1 {

Drop label


> +                reg = <1>;
> +                #phy-cells = <0>;
> +            };
> +        };
> +    };
> 

Best regards,
Krzysztof


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