[PATCH v2 1/3] dt-bindings: riscv: Add DT documentation for DDR Controller in SiFive SoCs

[Rob Herring]

On Mon, Sep 07, 2020 at 11:17:57AM +0530, Yash Shah wrote:
> Add device tree bindings for SiFive FU540 DDR controller driver
> 
> Signed-off-by: Yash Shah <yash.shah at sifive.com>
> Reviewed-by: Palmer Dabbelt <palmerdabbelt at google.com>
> Acked-by: Palmer Dabbelt <palmerdabbelt at google.com>
> ---
>  .../devicetree/bindings/riscv/sifive-ddr.yaml      | 41 ++++++++++++++++++++++

Bindings are organized by function, not vendor/arch generally. This goes 
in bindings/memory-controllers/.

>  1 file changed, 41 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/riscv/sifive-ddr.yaml
> 
> diff --git a/Documentation/devicetree/bindings/riscv/sifive-ddr.yaml b/Documentation/devicetree/bindings/riscv/sifive-ddr.yaml
> new file mode 100644
> index 0000000..0288119
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/riscv/sifive-ddr.yaml
> @@ -0,0 +1,41 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/riscv/sifive-ddr.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: SiFive DDR memory controller binding
> +
> +description: |
> +  The Sifive DDR controller driver is used to manage the Cadence DDR
> +  controller present in SiFive FU540-C000 SoC. Currently the driver is
> +  used to manage EDAC feature of the DDR controller.

Bindings describe h/w not drivers. What a driver supports is irrelevant.

> +
> +maintainers:
> +  - Yash Shah <yash.shah at sifive.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - sifive,fu540-c000-ddr
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    memory-controller at 100b0000 {
> +        compatible = "sifive,fu540-c000-ddr";
> +        reg = <0x100b0000 0x4000>;
> +        interrupts = <31>;
> +    };
> -- 
> 2.7.4
>