[PATCH v3 1/4] dt-bindings: mtd: rzn1: Describe Renesas RZ/N1 NAND controller

[Rob Herring]

On Thu, Dec 09, 2021 at 03:32:25PM +0100, Miquel Raynal wrote:
> Add a Yaml description for this Renesas NAND controller bindings.
> 
> Provide a family-specific "rzn1" compatible and a more specific
> "r9a06g032" one.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
> Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
> ---
>  .../mtd/renesas,rzn1-nand-controller.yaml     | 64 +++++++++++++++++++
>  1 file changed, 64 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml b/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml
> new file mode 100644
> index 000000000000..cc6a358e33d1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml
> @@ -0,0 +1,64 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mtd/renesas,rzn1-nand-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas RZ/N1x NAND flash controller device tree bindings
> +
> +maintainers:
> +  - Miquel Raynal <miquel.raynal at bootlin.com>
> +
> +allOf:
> +  - $ref: "nand-controller.yaml"
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - renesas,r9a06g032-nand-controller
> +      - const: renesas,rzn1-nand-controller
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: APB host controller clock
> +      - description: External NAND bus clock
> +
> +  clock-names:
> +    items:
> +      - const: nand_hclk
> +      - const: nand_eclk

'nand_' is redundant.

> +
> +  "#address-cells": true
> +  "#size-cells": true
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - interrupts
> +
> +additionalProperties: true

unevaluatedProperties: false

> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/r9a06g032-sysctrl.h>
> +
> +    nand-controller at 40102000 {
> +        compatible = "renesas,r9a06g032-nand-controller",
> +                     "renesas,rzn1-nand-controller";
> +        reg = <0x40102000 0x2000>;
> +        interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
> +        clocks = <&sysctrl R9A06G032_HCLK_NAND>, <&sysctrl R9A06G032_CLK_NAND>;
> +        clock-names = "nand_hclk", "nand_eclk";
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +    };
> -- 
> 2.27.0
> 
>