Re: [PATCH v3 2/5] dt-bindings: gpio: Binding for MStar MSC313 GPIO controller

[Rob Herring <robh@kernel.org>]

On Mon, Nov 09, 2020 at 09:17:28PM +0900, Daniel Palmer wrote:
> Add a binding description for the MStar/SigmaStar GPIO controller
> found in the MSC313 and later ARMv7 SoCs.
> 
> Signed-off-by: Daniel Palmer <daniel@0x0f.com>
> ---
>  .../bindings/gpio/mstar,msc313-gpio.yaml      | 62 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 63 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
> 
> diff --git a/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml b/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
> new file mode 100644
> index 000000000000..8c7cfe3a51b3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
> @@ -0,0 +1,62 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpio/mstar,msc313-gpio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MStar/SigmaStar GPIO controller
> +
> +maintainers:
> +  - Daniel Palmer <daniel@thingy.jp>
> +
> +properties:
> +  $nodename:
> +    pattern: "^gpio@[0-9a-f]+$"
> +
> +  compatible:
> +    const: mstar,msc313-gpio
> +
> +  reg:
> +    maxItems: 1
> +
> +  gpio-controller: true
> +
> +  "#gpio-cells":
> +    const: 2
> +
> +  gpio-ranges: true
> +
> +  gpio-ranges-group-names:
> +    $ref: /schemas/types.yaml#/definitions/string-array

Not a standard property. Probably should be dropped, but why do you need 
this and what is it for?

> +
> +  interrupt-controller: true
> +
> +  "#interrupt-cells":
> +    const: 2
> +
> +required:
> +  - compatible
> +  - reg
> +  - gpio-controller
> +  - "#gpio-cells"
> +  - interrupt-controller
> +  - "#interrupt-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/msc313-gpio.h>
> +
> +    gpio: gpio@207800 {
> +      compatible = "mstar,msc313e-gpio";
> +      #gpio-cells = <2>;
> +      reg = <0x207800 0x200>;
> +      gpio-controller;
> +      gpio-ranges = <&pinctrl 0 36 22>,
> +                    <&pinctrl 22 63 4>,
> +                    <&pinctrl 26 68 6>;
> +      #interrupt-cells = <2>;
> +      interrupt-controller;
> +      interrupt-parent = <&intc_fiq>;
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index db9c008a0395..87ca71f55de3 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -2131,6 +2131,7 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
>  S:	Maintained
>  W:	http://linux-chenxing.org/
>  F:	Documentation/devicetree/bindings/arm/mstar/*
> +F:	Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
>  F:	arch/arm/boot/dts/mstar-*
>  F:	arch/arm/mach-mstar/
>  F:	include/dt-bindings/gpio/msc313-gpio.h
> -- 
> 2.29.2
>