Re: [PATCH v2 19/34] xlink-core: Add xlink core device tree bindings

From: Rob Herring
Date: Mon Jan 11 2021 - 14:28:21 EST


On Fri, Jan 08, 2021 at 01:25:45PM -0800, mgross@xxxxxxxxxxxxxxx wrote:
> From: Seamus Kelly <seamus.kelly@xxxxxxxxx>
>
> Add device tree bindings for keembay-xlink.
>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Reviewed-by: Mark Gross <mgross@xxxxxxxxxxxxxxx>
> Signed-off-by: Seamus Kelly <seamus.kelly@xxxxxxxxx>
> Signed-off-by: Ryan Carnaghi <ryan.r.carnaghi@xxxxxxxxx>
> ---
> .../bindings/misc/intel,keembay-xlink.yaml | 27 +++++++++++++++++++
> 1 file changed, 27 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/misc/intel,keembay-xlink.yaml
>
> diff --git a/Documentation/devicetree/bindings/misc/intel,keembay-xlink.yaml b/Documentation/devicetree/bindings/misc/intel,keembay-xlink.yaml
> new file mode 100644
> index 000000000000..89c34018fa04
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/misc/intel,keembay-xlink.yaml
> @@ -0,0 +1,27 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright (c) Intel Corporation. All rights reserved.
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/misc/intel,keembay-xlink.yaml#";
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#";
> +
> +title: Intel Keem Bay xlink
> +
> +maintainers:
> + - Seamus Kelly <seamus.kelly@xxxxxxxxx>
> +
> +description: |
> + The Keem Bay xlink driver enables the communication/control sub-system
> + for internal and external communications to the Intel Keem Bay SoC.
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - const: intel,keembay-xlink
> +
> +examples:
> + - |
> + xlink {
> + compatible = "intel,keembay-xlink";
> + };

A node with a compatible and nothing else is generally a sign of abusing
DT to instantiate a driver. You don't need DT for that.

Rob