Re: [PATCH v3 5/5] dt-bindings: arm: atmel,at91rm9200-sdramc: convert to DT schema

[Conor Dooley <conor@kernel.org>]

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On Thu, Feb 26, 2026 at 04:13:37PM +0000, Akhila YS wrote:
> Convert RAMC SDRAM/DDR controller binding to YAML format.
> 
> Signed-off-by: Akhila YS <akhilayalmati@gmail.com>
> ---
>  .../bindings/arm/atmel,at91rm9200-sdramc.yaml      | 67 ++++++++++++++++++++++
>  .../devicetree/bindings/arm/atmel-sysregs.txt      | 20 -------
>  2 files changed, 67 insertions(+), 20 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/arm/atmel,at91rm9200-sdramc.yaml b/Documentation/devicetree/bindings/arm/atmel,at91rm9200-sdramc.yaml
> new file mode 100644
> index 000000000000..1516fc8e09e1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/atmel,at91rm9200-sdramc.yaml
> @@ -0,0 +1,67 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/arm/atmel,at91rm9200-sdramc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip (Atmel) SDRAM / DDR Controller (RAMC / DDRAMC / UDDRC)
> +
> +maintainers:
> +  - Nicolas Ferre <nicolas.ferre@microchip.com>
> +  - Claudiu Beznea <claudiu.beznea@tuxon.dev>
> +
> +description:
> +  The SDRAM/DDR Controller (often called RAMC or DDRAMC) in various
> +  Atmel/Microchip ARM9 and Cortex-A5/A7 SoCs  manages external
> +  SDRAM / DDR memory. It is typically exposed as a syscon node for
> +  register access from other drivers (e.g. for initialization or mode
> +  configuration). No interrupts or clocks are usually required in the
> +  binding.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - const: atmel,at91rm9200-sdramc
> +          - const: syscon
> +      - items:
> +          - const: microchip,sama7d65-uddrc
> +          - const: microchip,sama7g5-uddrc
> +      - items:
> +          enum:

Whoops, sorry for not noticing this earlier, but an items list with one
entry can be reduced to that one entry. For you here that means that
"- items enum:" becomes "- enum:".

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