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SubjectRe: [PATCH 1/2] dt-bindings: reset: lan966x phy reset driver bindings
On Tue, Oct 19, 2021 at 01:52:04PM +0200, Horatiu Vultur wrote:
> Document the lan966x phy reset device driving bindings.
> It is using register access for the internal PHYs and toggles
> GPIO for external PHYs.
>
> Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
> ---
> .../bindings/reset/lan966x-phy,rst.yaml | 53 +++++++++++++++++++
> 1 file changed, 53 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/reset/lan966x-phy,rst.yaml
>
> diff --git a/Documentation/devicetree/bindings/reset/lan966x-phy,rst.yaml b/Documentation/devicetree/bindings/reset/lan966x-phy,rst.yaml
> new file mode 100644
> index 000000000000..35a32458cafe
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/lan966x-phy,rst.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/reset/lan966x-phy,rst.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Microchip Lan966x PHY Reset
> +
> +maintainers:
> + - Horatiu Vultur <horatiu.vultur@microchip.com>
> +
> +description: |
> + The Microchip Lan966x Switch provides 2 internal PHY which needs to be
> + released from reset before they can be accessed. Also it might have external
> + PHYs which requires to toggle a GPIO before the access to the PHYs.
> +
> +properties:
> + $nodename:
> + pattern: "^phy-reset@[0-9a-f]+$"

^reset-controller@[0-9a-f]+$

> +
> + compatible:
> + const: microchip,lan966x-phy-reset
> +
> + reg:
> + items:
> + - description: internal phy reset registers

Just: maxItems: 1

> +
> + reg-names:
> + const: phy

Not all that useful with only 1 entry.

> +
> + "#reset-cells":
> + const: 1
> +
> + external-phy-reset-gpios:
> + description: used for release of reset of the external PHY
> + maxItems: 1

This belongs in the external PHY's node.

> +
> +required:
> + - compatible
> + - reg
> + - reg-names
> + - "#reset-cells"
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + phy_reset: phy-reset@e2010010 {
> + compatible = "microchip,lan966x-phy-reset";
> + reg = <0xe2010010 0x14>;
> + reg-names = "phy";
> + #reset-cells = <1>;
> + };
> --
> 2.33.0
>
>

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