[Letux-kernel] [PATCH v6 2/6] Bindings: nvmem: add bindings for JZ4780 efuse

Paul Cercueil paul at crapouillou.net
Thu Feb 27 15:49:17 CET 2020


Hi Nikolaus,


Le mer., févr. 26, 2020 at 12:15, H. Nikolaus Schaller 
<hns at goldelico.com> a écrit :
> From: PrasannaKumar Muralidharan <prasannatsmkumar at gmail.com>
> 
> 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 at debian.org>
> Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar at gmail.com>
> Signed-off-by: Mathieu Malaterre <malat at debian.org>
> Signed-off-by: H. Nikolaus Schaller <hns at goldelico.com>
> [converted to yaml]
> Signed-off-by: Andreas Kemnade <andreas at kemnade.info>
> ---
>  .../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..b9c0ea09b335
> --- /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 at gmail.com>
> +
> +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

Your driver does not actually require the clock to be 'ahb2', it will 
take the first clock independently of its name. So 'clock-names' can be 
dropped.

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/jz4780-cgu.h>
> +
> +    efuse at 134100d0 {
> +        compatible = "ingenic,jz4780-efuse";
> +        reg = <0x134100d0 0x2c>;
> +
> +        clocks = <&cgu JZ4780_CLK_AHB2>;
> +        clock-names = "ahb2";

Same here.

Cheers,
-Paul

> +    };
> +
> +...
> --
> 2.23.0
> 




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