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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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317eb8b3d7
Update dt-binding document for pinctrl of Amlogic S7/S7D/S6. Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/20250527-s6-s7-pinctrl-v3-1-44f6a0451519@amlogic.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
140 lines
3.0 KiB
YAML
140 lines
3.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/pinctrl/amlogic,pinctrl-a4.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Amlogic pinmux controller
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maintainers:
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- Xianwei Zhao <xianwei.zhao@amlogic.com>
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allOf:
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- $ref: pinctrl.yaml#
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properties:
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compatible:
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oneOf:
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- enum:
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- amlogic,pinctrl-a4
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- amlogic,pinctrl-s6
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- amlogic,pinctrl-s7
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- items:
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- enum:
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- amlogic,pinctrl-a5
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- const: amlogic,pinctrl-a4
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- items:
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- enum:
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- amlogic,pinctrl-s7d
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- const: amlogic,pinctrl-s7
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"#address-cells":
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const: 2
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"#size-cells":
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const: 2
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ranges: true
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patternProperties:
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"^gpio@[0-9a-f]+$":
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type: object
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additionalProperties: false
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properties:
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reg:
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minItems: 1
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items:
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- description: pin config register
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- description: pin mux setting register (some special pin fixed function)
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- description: pin drive strength register (optional)
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reg-names:
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minItems: 1
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items:
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- const: gpio
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- const: mux
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- const: ds
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gpio-controller: true
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"#gpio-cells":
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const: 2
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gpio-ranges:
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maxItems: 1
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required:
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- reg
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- reg-names
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- gpio-controller
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- "#gpio-cells"
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- gpio-ranges
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"^func-[0-9a-z-]+$":
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type: object
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additionalProperties: false
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patternProperties:
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"^group-[0-9a-z-]+$":
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type: object
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unevaluatedProperties: false
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allOf:
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- $ref: /schemas/pinctrl/pincfg-node.yaml
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- $ref: /schemas/pinctrl/pinmux-node.yaml
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required:
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- pinmux
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required:
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- compatible
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- "#address-cells"
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- "#size-cells"
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- ranges
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/pinctrl/amlogic,pinctrl.h>
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apb {
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#address-cells = <2>;
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#size-cells = <2>;
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periphs_pinctrl: pinctrl {
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compatible = "amlogic,pinctrl-a4";
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#address-cells = <2>;
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#size-cells = <2>;
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ranges;
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gpio@4240 {
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reg = <0 0x4240 0 0x40>, <0 0x4000 0 0x8>;
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reg-names = "gpio", "mux";
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gpio-controller;
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#gpio-cells = <2>;
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gpio-ranges = <&periphs_pinctrl 0 8 10>;
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};
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func-uart-b {
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group-default {
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pinmux = <AML_PINMUX(AMLOGIC_GPIO_B, 1, 4)>;
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bias-pull-up;
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drive-strength-microamp = <4000>;
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};
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group-pins1 {
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pinmux = <AML_PINMUX(AMLOGIC_GPIO_B, 5, 2)>;
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bias-pull-up;
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drive-strength-microamp = <4000>;
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};
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};
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func-uart-c {
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group-default {
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pinmux = <AML_PINMUX(AMLOGIC_GPIO_B, 3, 1)>,
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<AML_PINMUX(AMLOGIC_GPIO_B, 2, 1)>;
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bias-pull-up;
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drive-strength-microamp = <4000>;
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};
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};
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};
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};
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