linux-kernel - Re: [PATCH net-next v2 4/5] net: dt-bindings: Introduce the Qualcomm IPQESS Ethernet controller

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Date:   Tue, 17 May 2022 19:52:23 -0500
From:   Rob Herring <robh@...nel.org>
To:     Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        thomas.petazzoni@...tlin.com, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org,
        Vladimir Oltean <vladimir.oltean@....com>,
        Luka Perkov <luka.perkov@...tura.hr>,
        Robert Marko <robert.marko@...tura.hr>
Subject: Re: [PATCH net-next v2 4/5] net: dt-bindings: Introduce the Qualcomm
 IPQESS Ethernet controller

On Sat, May 14, 2022 at 05:06:55PM +0200, Maxime Chevallier wrote:
> Add the DT binding for the IPQESS Ethernet Controller. This is a simple
> controller, only requiring the phy-mode, interrupts, clocks, and
> possibly a MAC address setting.
> 
> Signed-off-by: Maxime Chevallier <maxime.chevallier@...tlin.com>
> ---
> V1->V2:
>  - Fixed the example
>  - Added reset and clocks
>  - Removed generic ethernet attributes
> 
>  .../devicetree/bindings/net/qcom,ipqess.yaml  | 104 ++++++++++++++++++
>  1 file changed, 104 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/qcom,ipqess.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/qcom,ipqess.yaml b/Documentation/devicetree/bindings/net/qcom,ipqess.yaml
> new file mode 100644
> index 000000000000..ea0023509737
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/qcom,ipqess.yaml
> @@ -0,0 +1,104 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/qcom,ipqess.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm IPQ ESS EDMA Ethernet Controller
> +
> +maintainers:
> +  - Maxime Chevallier <maxime.chevallier@...tlin.com>
> +
> +allOf:
> +  - $ref: "ethernet-controller.yaml#"
> +
> +properties:
> +  compatible:
> +    const: qcom,ipq4019e-ess-edma
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    minItems: 2
> +    maxItems: 32
> +    description: One interrupt per tx and rx queue, with up to 16 queues.
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    const: ess

Always kind of pointless to have a single *-names entry when it's just 
the block name.

> +
> +  resets:
> +    maxItems: 1
> +
> +  reset-names:
> +    const: ess

ditto

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - resets
> +  - phy-mode
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/qcom,gcc-ipq4019.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    gmac: ethernet@...0000 {
> +        compatible = "qcom,ipq4019-ess-edma";
> +        reg = <0xc080000 0x8000>;
> +        resets = <&gcc ESS_RESET>;
> +        reset-names = "ess";
> +        clocks = <&gcc GCC_ESS_CLK>;
> +        clock-names = "ess";
> +        interrupts = <GIC_SPI  65 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  66 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  67 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  68 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  69 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  70 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  71 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  72 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  73 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  74 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  75 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  76 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  77 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  78 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  79 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI  80 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 240 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 241 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 242 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 243 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 244 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 245 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 246 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 247 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 248 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 249 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 250 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 251 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 252 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 253 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 254 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 255 IRQ_TYPE_EDGE_RISING>;
> +
> +        phy-mode = "internal";
> +        fixed-link {
> +            speed = <1000>;
> +            full-duplex;
> +            pause;
> +            asym-pause;
> +        };
> +    };
> +
> +...
> -- 
> 2.36.1
> 
>