Re: [PATCH v6 1/4] dt-bindings: nvmem: convert mtk-efuse.txt to YAML schema

[Srinivas Kandagatla]

On 17/06/2022 02:31, Chunfeng Yun wrote:
> Convert mtk-efuse.txt to YAML schema mediatek,efuse.yaml
>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
> ---

Applied 1/4 and 2/4, dts patches need to go via SoC maintainer.


thanks,
-srini


> v6: no changes, based on kernel 5.19-rc1
>
> v5:
> sync with the series:
> https://patchwork.kernel.org/project/linux-mediatek/list/?series=640196
>     1. change title suggested by Krzysztof;
>     2. No need drop 'reviewed-by Rob' suggested by Krzysztof
>     3. add maintainer Lala who maintain efuse driver now;
>
> v4: fix duplicated unit-address in example;
>      drop reviewed-by Rob, due to changes;
>
> v3: add reviewed-by Rob
>
> v2:
>     1. remove description of subnodes which is covered by nvmem.yaml
> suggested by Rob
>     2. change the example which is commoner than mt8173's
> ---
>   .../bindings/nvmem/mediatek,efuse.yaml        | 87 +++++++++++++++++++
>   .../devicetree/bindings/nvmem/mtk-efuse.txt   | 43 ---------
>   2 files changed, 87 insertions(+), 43 deletions(-)
>   create mode 100644 Documentation/devicetree/bindings/nvmem/mediatek,efuse.yaml
>   delete mode 100644 Documentation/devicetree/bindings/nvmem/mtk-efuse.txt
>
> diff --git a/Documentation/devicetree/bindings/nvmem/mediatek,efuse.yaml b/Documentation/devicetree/bindings/nvmem/mediatek,efuse.yaml
> new file mode 100644
> index 000000000000..f6e01ddb7499
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/nvmem/mediatek,efuse.yaml
> @@ -0,0 +1,87 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/nvmem/mediatek,efuse.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek efuse
> +
> +description: |
> +  MediaTek's efuse is used for storing calibration data, it can be accessed
> +  on ARM devices usiong I/O mapped memory.
> +
> +maintainers:
> +  - Andrew-CT Chen <andrew-ct.chen@xxxxxxxxxxxx>
> +  - Lala Lin <lala.lin@xxxxxxxxxxxx>
> +
> +allOf:
> +  - $ref: "nvmem.yaml#"
> +
> +properties:
> +  $nodename:
> +    pattern: "^efuse@[0-9a-f]+$"
> +
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - mediatek,mt7622-efuse
> +              - mediatek,mt7623-efuse
> +              - mediatek,mt8173-efuse
> +              - mediatek,mt8192-efuse
> +              - mediatek,mt8195-efuse
> +              - mediatek,mt8516-efuse
> +          - const: mediatek,efuse
> +      - const: mediatek,mt8173-efuse
> +        deprecated: true
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    efuse@11c10000 {
> +        compatible = "mediatek,mt8195-efuse", "mediatek,efuse";
> +        reg = <0x11c10000 0x1000>;
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +
> +        u3_tx_imp_p0: usb3-tx-imp@184,1 {
> +            reg = <0x184 0x1>;
> +            bits = <0 5>;
> +        };
> +        u3_rx_imp_p0: usb3-rx-imp@184,2 {
> +            reg = <0x184 0x2>;
> +            bits = <5 5>;
> +        };
> +        u3_intr_p0: usb3-intr@185 {
> +            reg = <0x185 0x1>;
> +            bits = <2 6>;
> +        };
> +        comb_tx_imp_p1: usb3-tx-imp@186,1 {
> +            reg = <0x186 0x1>;
> +            bits = <0 5>;
> +        };
> +        comb_rx_imp_p1: usb3-rx-imp@186,2 {
> +            reg = <0x186 0x2>;
> +            bits = <5 5>;
> +        };
> +        comb_intr_p1: usb3-intr@187 {
> +            reg = <0x187 0x1>;
> +            bits = <2 6>;
> +        };
> +        u2_intr_p0: usb2-intr-p0@188,1 {
> +            reg = <0x188 0x1>;
> +            bits = <0 5>;
> +        };
> +        u2_intr_p1: usb2-intr-p1@188,2 {
> +            reg = <0x188 0x2>;
> +            bits = <5 5>;
> +        };
> +    };
> diff --git a/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt b/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt
> deleted file mode 100644
> index 39d529599444..000000000000
> --- a/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt
> +++ /dev/null
> @@ -1,43 +0,0 @@
> -= Mediatek MTK-EFUSE device tree bindings =
> -
> -This binding is intended to represent MTK-EFUSE which is found in most Mediatek SOCs.
> -
> -Required properties:
> -- compatible: should be
> -	      "mediatek,mt7622-efuse", "mediatek,efuse": for MT7622
> -	      "mediatek,mt7623-efuse", "mediatek,efuse": for MT7623
> -	      "mediatek,mt8173-efuse" or "mediatek,efuse": for MT8173
> -	      "mediatek,mt8192-efuse", "mediatek,efuse": for MT8192
> -	      "mediatek,mt8195-efuse", "mediatek,efuse": for MT8195
> -	      "mediatek,mt8516-efuse", "mediatek,efuse": for MT8516
> -- reg: Should contain registers location and length
> -- bits: contain the bits range by offset and size
> -
> -= Data cells =
> -Are child nodes of MTK-EFUSE, bindings of which as described in
> -bindings/nvmem/nvmem.txt
> -
> -Example:
> -
> -	efuse: efuse@10206000 {
> -		compatible = "mediatek,mt8173-efuse";
> -		reg	   = <0 0x10206000 0 0x1000>;
> -		#address-cells = <1>;
> -		#size-cells = <1>;
> -
> -		/* Data cells */
> -		thermal_calibration: calib@528 {
> -			reg = <0x528 0xc>;
> -		};
> -	};
> -
> -= Data consumers =
> -Are device nodes which consume nvmem data cells.
> -
> -For example:
> -
> -	thermal {
> -		...
> -		nvmem-cells = <&thermal_calibration>;
> -		nvmem-cell-names = "calibration";
> -	};