[PATCH v4 07/21] dt-binding: clock: Document canaan, k210-clk bindings

[Stephen Boyd]

Quoting Damien Le Moal (2020-12-01 19:24:46)
> diff --git a/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml b/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml
> new file mode 100644
> index 000000000000..3547916a2421
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/canaan,k210-clk.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Canaan Kendryte K210 Clock Device Tree Bindings
> +
> +maintainers:
> +  - Damien Le Moal <damien.lemoal at wdc.com>
> +
> +description: |
> +  Canaan Kendryte K210 SoC clocks driver bindings. The clock
> +  controller node must be defined as a child node of the K210
> +  system controller node.
> +
> +  See also:
> +  - dt-bindings/clock/k210-clk.h
> +
> +properties:
> +  compatible:
> +    const: canaan,k210-clk
> +
> +  clocks:
> +    maxItems: 1
> +    description:
> +      System fixed rate oscillator clock.

Is it optional? I suspect not and it can always be specified, so drop
maxItems.

> +
> +  '#clock-cells':
> +    const: 1
> +
> +required:
> +  - compatible
> +  - '#clock-cells'
> +  - clocks

Maybe also add clock-names as an optional property, but doesn't really
matter if there's only one clk.