linux-kernel - Re: [PATCH next v3 2/2] dt-bindings: gpio: add entry for hisilicon,ascend910-gpio

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Date:   Thu, 3 Nov 2022 20:36:56 +0800
From:   Yicong Yang <yangyicong@...wei.com>
To:     Weilong Chen <chenweilong@...wei.com>, <f.fangjian@...wei.com>
CC:     <linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linus.walleij@...aro.org>,
        <brgl@...ev.pl>, <xuwei5@...wei.com>,
        <krzysztof.kozlowski+dt@...aro.org>, <robh+dt@...nel.org>,
        <yangyicong@...ilicon.com>
Subject: Re: [PATCH next v3 2/2] dt-bindings: gpio: add entry for
 hisilicon,ascend910-gpio

On 2022/11/1 16:24, Weilong Chen wrote:
> Add the new compatible for HiSilicon gpio controller driver.
> 
> Signed-off-by: Weilong Chen <chenweilong@...wei.com>

Looks good to me,

Reviewed-by: Yicong Yang <yangyicong@...ilicon.com>

> ---
> Change since v2:
> - No change.
> Link: https://lore.kernel.org/lkml/20221028022453.163186-2-chenweilong@huawei.com/
> 
> Change since v1:
> - Drop "Device Tree Bindings" and reg's description
> - Move description in top-level description.
> - Add gpio-cells to required
> - Use additionalProperties and decimal numbers
> - Use IRQ flags
> - Use vendor,soc-ipblock format
> Link: https://lore.kernel.org/lkml/20221026034219.172880-2-chenweilong@huawei.com/
> 
>  .../gpio/hisilicon,ascend910-gpio.yaml        | 56 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 57 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpio/hisilicon,ascend910-gpio.yaml
> 
> diff --git a/Documentation/devicetree/bindings/gpio/hisilicon,ascend910-gpio.yaml b/Documentation/devicetree/bindings/gpio/hisilicon,ascend910-gpio.yaml
> new file mode 100644
> index 000000000000..735d97d645a0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/hisilicon,ascend910-gpio.yaml
> @@ -0,0 +1,56 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpio/hisilicon,ascend910-gpio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: HiSilicon common GPIO controller
> +
> +maintainers:
> +  - Jay Fang <f.fangjian@...wei.com>
> +
> +description:
> +  The HiSilicon common GPIO controller can be used for many different
> +  types of SoC such as Huawei Ascend AI series chips.
> +
> +properties:
> +  compatible:
> +    const: hisilicon,ascend910-gpio
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  gpio-controller: true
> +
> +  "#gpio-cells":
> +    const: 2
> +
> +  ngpios:
> +    minimum: 1
> +    maximum: 32
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - gpio-controller
> +  - "#gpio-cells"
> +  - ngpios
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    gpio@...d0000 {
> +      compatible = "hisilicon,ascend910-gpio";
> +      reg = <0x840d0000 0x1000>;
> +      ngpios = <32>;
> +      gpio-controller;
> +      #gpio-cells = <2>;
> +      interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index d42e34d1e8e2..74ac2e7a8e4b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9212,6 +9212,7 @@ HISILICON GPIO DRIVER
>  M:	Jay Fang <f.fangjian@...wei.com>
>  L:	linux-gpio@...r.kernel.org
>  S:	Maintained
> +F:	Documentation/devicetree/bindings/gpio/hisilicon,ascend910-gpio.yaml
>  F:	drivers/gpio/gpio-hisi.c
>  
>  HISILICON HIGH PERFORMANCE RSA ENGINE DRIVER (HPRE)
>