linux-kernel - Re: [PATCH v8 2/2] dt-bindings: net: Add ipq806x mdio bindings

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Message-ID: <20200227172340.GA19136@bogus>
Date:   Thu, 27 Feb 2020 11:23:40 -0600
From:   Rob Herring <robh@...nel.org>
To:     Ansuel Smith <ansuelsmth@...il.com>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        "David S. Miller" <davem@...emloft.net>,
        Mark Rutland <mark.rutland@....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-msm@...r.kernel.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 2/2] dt-bindings: net: Add ipq806x mdio bindings

On Thu, Feb 27, 2020 at 02:10:46AM +0100, Ansuel Smith wrote:
> Add documentations for ipq806x mdio driver.
> 
> Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
> ---
> Changes in v8:
> - Fix error in dtb check
> - Remove not needed reset definition from example
> - Add include header for ipq806x clocks
> - Fix wrong License type
> 
> Changes in v7:
> - Fix dt_binding_check problem
> 
>  .../bindings/net/qcom,ipq8064-mdio.yaml       | 61 +++++++++++++++++++
>  1 file changed, 61 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/qcom,ipq8064-mdio.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/qcom,ipq8064-mdio.yaml b/Documentation/devicetree/bindings/net/qcom,ipq8064-mdio.yaml
> new file mode 100644
> index 000000000000..4334a415f23c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/qcom,ipq8064-mdio.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: GPL-2.0-only

Dual license new bindings please:

(GPL-2.0-only OR BSD-2-Clause)

> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/qcom,ipq8064-mdio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm ipq806x MDIO bus controller
> +
> +maintainers:
> +  - Ansuel Smith <ansuelsmth@...il.com>
> +
> +description:
> +  The ipq806x soc have a MDIO dedicated controller that is
> +  used to comunicate with the gmac phy conntected.

2 typos

> +  Child nodes of this MDIO bus controller node are standard
> +  Ethernet PHY device nodes as described in
> +  Documentation/devicetree/bindings/net/phy.txt

You might want to read what that file says now.

> +
> +allOf:
> +  - $ref: "mdio.yaml#"
> +
> +properties:
> +  compatible:
> +    items:
> +        - const: qcom,ipq8064-mdio
> +        - const: syscon

Why is this a 'syscon'? Does it have more than 1 function?

> +
> +  reg:
> +    description: address and length of the register set for the device

Drop this and you need to state how many (maxItems).

> +
> +  clocks:
> +    description: A reference to the clock supplying the MDIO bus controller

Same here.

> +
> +  clock-names:
> +    const: master
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - "#address-cells"
> +  - "#size-cells"
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/qcom,gcc-ipq806x.h>
> +
> +    mdio0: mdio@...00000 {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        compatible = "qcom,ipq8064-mdio", "syscon";
> +        reg = <0x37000000 0x200000>;
> +
> +        clocks = <&gcc GMAC_CORE1_CLK>;
> +
> +        switch@10 {
> +            compatible = "qca,qca8337";
> +            /* ... */
> +        };
> +    };
> -- 
> 2.25.0
>