Re: [PATCH v2 1/2] doc: bindings: Add bindings documentation for mtd nvmem

From: Rob Herring
Date: Wed Mar 15 2017 - 13:24:09 EST


On Tue, Mar 07, 2017 at 09:26:03AM +0100, Alban wrote:
> Config data for drivers, like MAC addresses, is often stored in MTD.
> Add a binding that define how such data storage can be represented in
> device tree.
>
> Signed-off-by: Alban <albeu@xxxxxxx>
> ---
> Changelog:
> v2: * Added a "Required properties" section with the nvmem-provider
> property
> ---
> .../devicetree/bindings/nvmem/mtd-nvmem.txt | 33 ++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt
>
> diff --git a/Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt b/Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt
> new file mode 100644
> index 0000000..8ed25e6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt
> @@ -0,0 +1,33 @@
> += NVMEM in MTD =
> +
> +Config data for drivers, like MAC addresses, is often stored in MTD.
> +This binding define how such data storage can be represented in device tree.
> +
> +An MTD can be defined as an NVMEM provider by adding the `nvmem-provider`
> +property to their node. Data cells can then be defined as child nodes
> +of the partition as defined in nvmem.txt.
> +
> +Required properties:
> +nvmem-provider: Indicate that the device should be registered as
> + NVMEM provider

I think we should use a compatible string here (perhaps with a
generic fallback), and that can imply it is an nvmem provider. The
reason is then the compatible can also imply other information that
isn't defined in DT.

Rob