Re: [PATCH V3 1/2] dt-bindings: mtd: partitions: u-boot: allow dynamic subpartitions

Conor Dooley
2022-10-18T15:52:45Z

On Tue, Oct 18, 2022 at 05:42:01PM +0200, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@milecki.pl>
>
> U-Boot partition may contain subpartitions. For example Broadcom
> includes environment data block in the middle of its U-Boot partition.
>
> This allows describing Broadcom's U-Boot env data and will allow
> referencing its NVMEM cell in the future.
>
> Reg: 118f3fbe517f4 ("dt-bindings: mtd: partitions: support label/name only partition")

Pardon my ignorance here, but what is the significance of a "Reg" tag?
Thanks,
Conor.

> Ref: dd638202dfb65 ("dt-bindings: mtd: partitions: add additional example for qcom,smem-part")
> Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
> ---
> V3: Add this patch as pre-requirement for u-boot,env.yaml & brcm,env
> ---
> .../devicetree/bindings/mtd/partitions/u-boot.yaml | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mtd/partitions/u-boot.yaml b/Documentation/devicetree/bindings/mtd/partitions/u-boot.yaml
> index 8a88e7d16524..3c56efe48efd 100644
> --- a/Documentation/devicetree/bindings/mtd/partitions/u-boot.yaml
> +++ b/Documentation/devicetree/bindings/mtd/partitions/u-boot.yaml
> @@ -27,6 +27,10 @@ properties:
> Broadcom stores environment variables inside a U-Boot partition. They
> can be identified by a custom header with magic value.
>
> +patternProperties:
> + "^partition-.*$":
> + $ref: partition.yaml#
> +
> unevaluatedProperties: false
>
> examples:
> @@ -40,6 +44,9 @@ examples:
> compatible = "brcm,u-boot";
> reg = <0x0 0x100000>;
> label = "u-boot";
> +
> + partition-u-boot-env {
> + };
> };
>
> partition@100000 {
> --
> 2.34.1
>