linux-kernel - Re: [PATCH v3 06/16] dt-bindings: gpio: Add AXP192 GPIO bindings

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Message-ID: <8faae2a3-6758-979c-e7b0-1d4b18ae1a5b@linaro.org>
Date:   Sun, 19 Jun 2022 13:12:43 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Aidan MacDonald <aidanmacdonald.0x0@...il.com>,
        linus.walleij@...aro.org, brgl@...ev.pl, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, wens@...e.org, jic23@...nel.org,
        lee.jones@...aro.org, sre@...nel.org, broonie@...nel.org,
        gregkh@...uxfoundation.org, lgirdwood@...il.com
Cc:     lars@...afoo.de, rafael@...nel.org, quic_gurus@...cinc.com,
        sebastian.reichel@...labora.com, andy.shevchenko@...il.com,
        michael@...le.cc, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-iio@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v3 06/16] dt-bindings: gpio: Add AXP192 GPIO bindings

On 18/06/2022 23:39, Aidan MacDonald wrote:
> The AXP192 PMIC is different enough from the PMICs supported by
> the AXP20x GPIO driver to warrant a separate driver. The AXP192
> driver also supports interrupts and pinconf settings.
> 
> Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@...il.com>
> ---
>  .../bindings/gpio/x-powers,axp192-gpio.yaml   | 68 +++++++++++++++++++
>  1 file changed, 68 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpio/x-powers,axp192-gpio.yaml
> 
> diff --git a/Documentation/devicetree/bindings/gpio/x-powers,axp192-gpio.yaml b/Documentation/devicetree/bindings/gpio/x-powers,axp192-gpio.yaml
> new file mode 100644
> index 000000000000..1e368cac9d3a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/x-powers,axp192-gpio.yaml
> @@ -0,0 +1,68 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/gpio/x-powers,axp192-gpio.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: X-Powers AXP192 GPIO Device Tree Bindings
> +
> +maintainers:
> +  - Chen-Yu Tsai <wens@...e.org>
> +
> +properties:
> +  compatible:
> +    const: x-powers,axp192-gpio
> +
> +  gpio-controller: true
> +
> +  "#gpio-cells":
> +    const: 2
> +    description: >
> +      The first cell is the pin number and the second is the GPIO flags.
> +
> +  gpio-ranges:
> +    maxItems: 1
> +
> +patternProperties:
> +  "-pins$":
> +    $ref: /schemas/pinctrl/pinmux-node.yaml#
> +
> +    properties:
> +      pins:
> +        items:
> +          enum:
> +            - GPIO0
> +            - GPIO1
> +            - GPIO2
> +            - GPIO3
> +            - GPIO4
> +            - N_RSTO
> +
> +      function:
> +        enum:
> +          - output
> +          - input
> +          - ldo
> +          - pwm
> +          - adc
> +          - low_output
> +          - floating
> +          - ext_chg_ctl
> +          - ldo_status
> +
> +required:
> +  - compatible
> +  - "#gpio-cells"
> +  - gpio-controller
> +  - gpio-ranges
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    pinctrl0: gpio@0 {

Unit address without reg, that's not a valid DTS.

> +        compatible = "x-powers,axp192-gpio";
> +        gpio-controller;
> +        #gpio-cells = <2>;
> +        gpio-ranges = <&pinctrl0 0 0 6>;
> +    };


Best regards,
Krzysztof