[PATCH v1 03/11] dt-bindings: pinctrl: add Allwinner B288 pin controller
Andre Przywara
andre.przywara at arm.com
Thu Sep 24 02:07:40 PDT 2026
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;
> + };
> + };
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