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

From: Rob Herring
Date: Thu Feb 27 2020 - 12:23:46 EST


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@xxxxxxxxx>
> ---
> 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@xxxxxxxxx>
> +
> +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@37000000 {
> + #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
>