Re: [PATCH 1/8] dt-bindings: pinctrl: Add bindings for Toshiba Visconti TMPV7700 SoC

[Rob Herring <robh@xxxxxxxxxx>]

On Mon, Aug 17, 2020 at 10:46:25AM +0900, Nobuhiro Iwamatsu wrote:
> Add pinctrl bindings for Toshiba Visconti TMPV7700 SoC series.
> 
> Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@xxxxxxxxxxxxx>
> ---
>  .../pinctrl/toshiba,visconti-pinctrl.yaml     | 82 +++++++++++++++++++
>  1 file changed, 82 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/toshiba,visconti-pinctrl.yaml
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/toshiba,visconti-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/toshiba,visconti-pinctrl.yaml
> new file mode 100644
> index 000000000000..4009902cd396
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/toshiba,visconti-pinctrl.yaml
> @@ -0,0 +1,82 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/toshiba,visconti-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Toshiba Visconti TMPV770x pin mux/config controller
> +
> +maintainers:
> +  - Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@xxxxxxxxxxxxx>
> +
> +description:
> +  Toshiba's Visconti ARM SoC a pin mux/config controller.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - toshiba,tmpv7708-pinctrl
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +patternProperties:
> +  '^.*$':

For new bindings, please define something like '-pins$' for the pin 
nodes.

> +    if:
> +      type: object
> +    then:

Then we don't have to do this if/then.

This also needs a $ref to the common pinctrl schemas.

> +      properties:
> +        function:
> +          description:
> +            Function to mux.
> +          $ref: "/schemas/types.yaml#/definitions/string"
> +          enum: [i2c0, i2c1, i2c2, i2c3, i2c4, i2c5, i2c6, i2c7, i2c8,
> +            spi0, spi1, spi2, spi3, spi4, spi5, spi6,
> +            uart0, uart1, uart2, uart3, pwm, pcmif_out, pcmif_in]
> +
> +        groups:
> +          description:
> +            Name of the pin group to use for the functions.
> +          $ref: "/schemas/types.yaml#/definitions/string"
> +          enum: [i2c0_grp, i2c1_grp, i2c2_grp, i2c3_grp, i2c4_grp,
> +            i2c5_grp, i2c6_grp, i2c7_grp, i2c8_grp,
> +            spi0_grp, spi0_cs0_grp, spi0_cs1_grp, spi0_cs2_grp,
> +            spi1_grp, spi2_grp, spi3_grp, spi4_grp, spi5_grp, spi6_grp,
> +            uart0_grp, uart1_grp, uart2_grp, uart3_grp,
> +            pwm0_gpio4_grp, pwm0_gpio8_grp, pwm0_gpio12_grp,
> +            pwm0_gpio16_grp, pwm1_gpio5_grp, pwm1_gpio9_grp,
> +            pwm1_gpio13_grp, pwm1_gpio17_grp, pwm2_gpio6_grp,
> +            pwm2_gpio10_grp, pwm2_gpio14_grp, pwm2_gpio18_grp,
> +            pwm3_gpio7_grp, pwm3_gpio11_grp, pwm3_gpio15_grp,
> +            pwm3_gpio19_grp, pcmif_out_grp, pcmif_in_grp]
> +
> +        drive-strength:
> +          enum: [2, 4, 6, 8, 16, 24, 32]
> +          default: 2
> +          description:
> +            Selects the drive strength for the specified pins, in mA.
> +
> +        bias-pull-up: true
> +
> +        bias-pull-down: true
> +
> +        bias-disable: true
> +
> +additionalProperties: false
> +
> +examples:
> +  # Pinmux controller node
> +  - |
> +    pmux: pmux@24190000 {
> +        compatible = "toshiba,tmpv7708-pinctrl";
> +        reg = <0 0x24190000 0 0x10000>;
> +
> +        spi_0: spi_0 {
> +                function = "spi0";
> +                groups = "spi0_grp";
> +        };
> +    };
> -- 
> 2.27.0
>