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Message-ID: <46ec62eb-00da-defb-219f-92121fd35d7e@linaro.org>
Date: Fri, 17 Jun 2022 12:41:04 -0700
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: Chunfeng Yun <chunfeng.yun@...iatek.com>,
Matthias Brugger <matthias.bgg@...il.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org,
Allen-KH Cheng <allen-kh.cheng@...iatek.com>,
Eddie Hung <eddie.hung@...iatek.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v6 1/4] dt-bindings: nvmem: convert mtk-efuse.txt to YAML
schema
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@...aro.org>
> Reviewed-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
> ---
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@...iatek.com>
> + - Lala Lin <lala.lin@...iatek.com>
> +
> +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@...10000 {
> + 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@...06000 {
> - 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";
> - };
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