[PATCH v1 03/11] dt-bindings: pinctrl: add Allwinner B288 pin controller

[Pablo Mazzini]

Hi Andre,

> Can't you just add the new compatible string to the existing
> allwinner,sun4i-a10-pinctrl.yaml binding?

Done for v2.

Thanks,
Pablo


On Thu, Sep 24, 2026 at 10:07 AM Andre Przywara <andre.przywara at arm.com> wrote:
>
> Hi Pablo,
>
> On 9/23/26 22:16, Pablo Mazzini wrote:
> > One controller at 0x01c20800 with four external interrupt banks.
> >
> > Signed-off-by: Pablo Mazzini <pmazzini at gmail.com>
> > ---
> >   .../pinctrl/allwinner,sun8i-b288-pinctrl.yaml | 108 ++++++++++++++++++
>
> Why is this a new file? Can't you just add the new compatible string to
> the existing allwinner,sun4i-a10-pinctrl.yaml binding?
>
> Cheers,
> Andre
>
> P.S. Since we have seen this a lot lately: please wait with a new
> version of your series for a few days, to allow other people to comment,
> and to allow discussions to settle down. Not everyone can respond quickly.
>
> >   1 file changed, 108 insertions(+)
> >   create mode 100644 Documentation/devicetree/bindings/pinctrl/allwinner,sun8i-b288-pinctrl.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sun8i-b288-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/allwinner,sun8i-b288-pinctrl.yaml
> > new file mode 100644
> > index 000000000000..806da97ab708
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sun8i-b288-pinctrl.yaml
> > @@ -0,0 +1,108 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/pinctrl/allwinner,sun8i-b288-pinctrl.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Allwinner B288 Pin Controller
> > +
> > +maintainers:
> > +  - Chen-Yu Tsai <wens at csie.org>
> > +  - Jernej Skrabec <jernej.skrabec at gmail.com>
> > +
> > +properties:
> > +  compatible:
> > +    const: allwinner,sun8i-b288-pinctrl
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    description:
> > +      One interrupt per bank of external interrupt capable pins.
> > +    maxItems: 4
> > +
> > +  clocks:
> > +    items:
> > +      - description: Bus Clock
> > +      - description: High Frequency Oscillator
> > +      - description: Low Frequency Oscillator
> > +
> > +  clock-names:
> > +    items:
> > +      - const: apb
> > +      - const: hosc
> > +      - const: losc
> > +
> > +  gpio-controller: true
> > +  interrupt-controller: true
> > +  gpio-line-names: true
> > +
> > +  "#gpio-cells":
> > +    const: 3
> > +
> > +  "#interrupt-cells":
> > +    const: 3
> > +
> > +patternProperties:
> > +  "-pins$":
> > +    type: object
> > +    $ref: /schemas/pinctrl/pincfg-node.yaml#
> > +    additionalProperties: false
> > +
> > +    properties:
> > +      pins: true
> > +      function: true
> > +      bias-pull-up: true
> > +      bias-pull-down: true
> > +      bias-disable: true
> > +      drive-strength:
> > +        enum: [10, 20, 30, 40]
> > +
> > +    required:
> > +      - pins
> > +      - function
> > +
> > +  "^vcc-p[bcdfg]-supply$":
> > +    description:
> > +      Power supplies for pin banks.
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - clocks
> > +  - clock-names
> > +  - gpio-controller
> > +  - "#gpio-cells"
> > +  - interrupt-controller
> > +  - "#interrupt-cells"
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/clock/sun8i-b288-ccu.h>
> > +
> > +    pio: pinctrl at 1c20800 {
> > +        compatible = "allwinner,sun8i-b288-pinctrl";
> > +        reg = <0x01c20800 0x400>;
> > +        interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
> > +                     <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
> > +                     <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>,
> > +                     <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
> > +        clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&osc32k>;
> > +        clock-names = "apb", "hosc", "losc";
> > +        gpio-controller;
> > +        #gpio-cells = <3>;
> > +        interrupt-controller;
> > +        #interrupt-cells = <3>;
> > +
> > +        mmc0_pins: mmc0-pins {
> > +            pins = "PF0", "PF1", "PF2", "PF3", "PF4", "PF5";
> > +            function = "sdc0";
> > +            drive-strength = <30>;
> > +            bias-pull-up;
> > +        };
> > +    };
>