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Date:   Fri, 28 Oct 2022 20:04:59 -0400
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Weilong Chen <chenweilong@...wei.com>, yangyicong@...ilicon.com,
        xuwei5@...wei.com, wsa@...nel.org, robh+dt@...nel.org,
        robh@...nel.org
Cc:     linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH next v8 2/2] dt-bindings: i2c: add entry for
 hisilicon,i2c-ascend910

On 23/10/2022 21:51, Weilong Chen wrote:
> Add the new compatible for HiSilicon i2c.
> 
> Signed-off-by: Weilong Chen <chenweilong@...wei.com>

Please use scripts/get_maintainers.pl to get a list of necessary people
and lists to CC.  It might happen, that command when run on an older
kernel, gives you outdated entries.  Therefore please be sure you base
your patches on recent Linux kernel.

> ---
> Change since v7:
> - Fix yamllint errors, rename i2c-xxx to i2c-ascend910
> Link: https://lore.kernel.org/all/166635752527.3428089.707277745439761591.robh@kernel.org/
> 
>  .../bindings/i2c/hisilicon,i2c-ascend910.yaml | 70 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 71 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml
> 
> diff --git a/Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml b/Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml
> new file mode 100644
> index 000000000000..918825a3026b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml
> @@ -0,0 +1,70 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/i2c/hisilicon,i2c-ascend910.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"

My previous comments apply.

> +
> +title: HiSilicon common I2C controller Device Tree Bindings
> +
> +maintainers:
> +  - Yicong Yang <yangyicong@...ilicon.com>
> +
> +allOf:
> +  - $ref: /schemas/i2c/i2c-controller.yaml#
> +
> +properties:
> +  compatible:
> +    const: hisilicon,i2c-ascend910
> +    description:
> +      The HiSilicon common I2C controller can be used for many different
> +      types of SoC such as Huawei Ascend AI series chips.

Comment still applies.

> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-frequency:
> +    default: 400000
> +
> +  i2c-sda-falling-time-ns:
> +    default: 343
> +
> +  i2c-scl-falling-time-ns:
> +    default: 203
> +
> +  i2c-sda-hold-time-ns:
> +    default: 830
> +
> +  i2c-scl-rising-time-ns:
> +    default: 365
> +
> +  i2c-digital-filter-width-ns:
> +    default: 0
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    i2c@...8b0000 {
> +      compatible = "hisilicon,i2c-ascend910";
> +      reg = <0x38b0000 0x10000>;
> +      interrupts = <0x0 120 0x4>;

Same here.


Best regards,
Krzysztof

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