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SubjectRe: [PATCH v2 1/3] dt-bindings: nvmem: add description for UniPhier eFuse
On Fri, Oct 06, 2017 at 02:02:58PM +0900, Keiji Hayashibara wrote:
> Add uniphier-efuse dt-bindings documentation.
>
> Signed-off-by: Keiji Hayashibara <hayashibara.keiji@socionext.com>
> ---
> .../devicetree/bindings/nvmem/uniphier-efuse.txt | 49 ++++++++++++++++++++++
> 1 file changed, 49 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt
>
> diff --git a/Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt b/Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt
> new file mode 100644
> index 0000000..1a394e5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt
> @@ -0,0 +1,49 @@
> += UniPhier eFuse device tree bindings =
> +
> +This UniPhier eFuse must be under soc-glue.
> +
> +Required properties:
> +- compatible: should be "socionext,uniphier-efuse"
> +- reg: should contain the register location and length
> +
> += Data cells =
> +Are child nodes of efuse, bindings of which as described in
> +bindings/nvmem/nvmem.txt
> +
> +Example:
> +
> + soc-glue@5f900000 {
> + compatible = "socionext,uniphier-ld20-soc-glue-debug",
> + "simple-mfd";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0x0 0x5f900000 0x2000>;
> +
> + efuse@100 {
> + compatible = "socionext,uniphier-efuse";
> + reg = <0x100 0x28>;
> + };
> +
> + efuse@200 {
> + compatible = "socionext,uniphier-efuse";
> + reg = <0x200 0x68>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + /* Data cells */
> + usb_mon: usb_mon {

Don't use '_' and needs a unit-address. Build your dtb with W=2 option
and you'll get these warnings.

> + reg = <0x54 0xc>;

Without ranges above, this is address 5f900054. I think you want
5f900254. You need:

ranges = <0x0 0x200 0x68>;

> + };
> + };
> + };
> +
> += Data consumers =
> +Are device nodes which consume nvmem data cells.
> +
> +Example:
> +
> + usb {
> + ...
> + nvmem-cells = <&usb_mon>;
> + nvmem-cell-names = "usb_mon";
> + }
> --
> 2.7.4
>

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