62 lines
1.2 KiB
YAML
62 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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$id: http://devicetree.org/schemas/input/nxp,lpc3220-key.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: NXP LPC32xx Key Scan Interface
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maintainers:
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- Frank Li <Frank.Li@nxp.com>
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properties:
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compatible:
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const: nxp,lpc3220-key
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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nxp,debounce-delay-ms:
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description: Debounce delay in ms
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nxp,scan-delay-ms:
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description: Repeated scan period in ms
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- nxp,debounce-delay-ms
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- nxp,scan-delay-ms
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- linux,keymap
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allOf:
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- $ref: matrix-keymap.yaml#
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/clock/lpc32xx-clock.h>
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key@40050000 {
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compatible = "nxp,lpc3220-key";
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reg = <0x40050000 0x1000>;
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clocks = <&clk LPC32XX_CLK_KEY>;
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interrupt-parent = <&sic1>;
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interrupts = <22 IRQ_TYPE_LEVEL_HIGH>;
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keypad,num-rows = <1>;
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keypad,num-columns = <1>;
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nxp,debounce-delay-ms = <3>;
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nxp,scan-delay-ms = <34>;
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linux,keymap = <0x00000002>;
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};
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