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71b660010b
Convert the Lantiq SoC External Bus memory mapped GPIO binding to DT schema format. It's a straight forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250714202837.3011521-1-robh@kernel.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
55 lines
1.2 KiB
YAML
55 lines
1.2 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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$id: http://devicetree.org/schemas/lantiq,gpio-mm-lantiq.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Lantiq SoC External Bus memory mapped GPIO controller
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maintainers:
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- John Crispin <john@phrozen.org>
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description: |
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By attaching hardware latches to the EBU it is possible to create output
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only gpios. This driver configures a special memory address, which when
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written to outputs 16 bit to the latches.
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The node describing the memory mapped GPIOs needs to be a child of the node
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describing the "lantiq,localbus".
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properties:
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compatible:
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enum:
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- lantiq,gpio-mm-lantiq
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- lantiq,gpio-mm
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reg:
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maxItems: 1
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'#gpio-cells':
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const: 2
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gpio-controller: true
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lantiq,shadow:
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description: The default value that we shall assume as already set on the shift register cascade.
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$ref: /schemas/types.yaml#/definitions/uint32
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required:
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- compatible
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- reg
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- '#gpio-cells'
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- gpio-controller
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additionalProperties: false
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examples:
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- |
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gpio@4000000 {
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compatible = "lantiq,gpio-mm-lantiq";
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reg = <0x4000000 0x10>;
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gpio-controller;
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#gpio-cells = <2>;
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lantiq,shadow = <0x77f>;
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};
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