Re: [PATCH v5 2/6] Bindings: nvmem: add bindings for JZ4780 efuse

From: Andreas Kemnade
Date: Sat Feb 22 2020 - 10:58:30 EST


On Sat, 22 Feb 2020 11:25:37 +0100
"H. Nikolaus Schaller" <hns@xxxxxxxxxxxxx> wrote:

> From: PrasannaKumar Muralidharan <prasannatsmkumar@xxxxxxxxx>
>
> This patch brings support for the JZ4780 efuse. Currently it only exposes
> a read only access to the entire 8K bits efuse memory.
>
> Tested-by: Mathieu Malaterre <malat@xxxxxxxxxx>
> Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@xxxxxxxxx>
> Signed-off-by: Mathieu Malaterre <malat@xxxxxxxxxx>
> Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
> [converted to yaml]
> Signed-off-by: Andreas Kemnade <andreas@xxxxxxxxxxxx>
> ---
> .../bindings/nvmem/ingenic,jz4780-efuse.yaml | 50 +++++++++++++++++++
> 1 file changed, 50 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/nvmem/ingenic,jz4780-efuse.yaml
>
> diff --git a/Documentation/devicetree/bindings/nvmem/ingenic,jz4780-efuse.yaml b/Documentation/devicetree/bindings/nvmem/ingenic,jz4780-efuse.yaml
> new file mode 100644
> index 000000000000..09a8ef937750
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/nvmem/ingenic,jz4780-efuse.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/nvmem/ingenic,jz4780-efuse.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Ingenic JZ EFUSE driver bindings
> +
> +maintainers:
> + - PrasannaKumar Muralidharan <prasannatsmkumar@xxxxxxxxx>
> +
> +allOf:
> + - $ref: "nvmem.yaml#"
> +
> +properties:
> + compatible:
> + enum:
> + - ingenic,jz4780-efuse
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + # Handle for the ahb for the efuse.
> + maxItems: 1
> +
> + clock-names:
> + items:
> + - const: ahb2
as Rob said: probably not needed, since it is a single
clock, and the driver uses devm_clk_get(dev, NULL), so it should be prepared
for that without any extra work.

> +
> +required:
> + - compatible
> + - reg
> + - clock-names
so it is not required here (but "- clocks" (not "- clock") as said in earlier
mail).

> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/jz4780-cgu.h>
> +
> + efuse@134100d0 {
> + compatible = "ingenic,jz4780-efuse";
> + reg = <0x134100d0 0x2c>;
> +
> + clocks = <&cgu JZ4780_CLK_AHB2>;
> + clock-names = "ahb2";
and not required here.

Regards,
Andreas

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