| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) | |
| %YAML 1.2 | |
| --- | |
| $id: http://devicetree.org/schemas/input/nxp,lpc3220-key.yaml# | |
| $schema: http://devicetree.org/meta-schemas/core.yaml# | |
| title: NXP LPC32xx Key Scan Interface | |
| maintainers: | |
| - Frank Li <Frank.Li@nxp.com> | |
| properties: | |
| compatible: | |
| const: nxp,lpc3220-key | |
| reg: | |
| maxItems: 1 | |
| interrupts: | |
| maxItems: 1 | |
| clocks: | |
| maxItems: 1 | |
| nxp,debounce-delay-ms: | |
| description: Debounce delay in ms | |
| nxp,scan-delay-ms: | |
| description: Repeated scan period in ms | |
| required: | |
| - compatible | |
| - reg | |
| - interrupts | |
| - clocks | |
| - nxp,debounce-delay-ms | |
| - nxp,scan-delay-ms | |
| - linux,keymap | |
| allOf: | |
| - $ref: matrix-keymap.yaml# | |
| unevaluatedProperties: false | |
| examples: | |
| - | | |
| #include <dt-bindings/interrupt-controller/irq.h> | |
| #include <dt-bindings/clock/lpc32xx-clock.h> | |
| key@40050000 { | |
| compatible = "nxp,lpc3220-key"; | |
| reg = <0x40050000 0x1000>; | |
| clocks = <&clk LPC32XX_CLK_KEY>; | |
| interrupt-parent = <&sic1>; | |
| interrupts = <22 IRQ_TYPE_LEVEL_HIGH>; | |
| keypad,num-rows = <1>; | |
| keypad,num-columns = <1>; | |
| nxp,debounce-delay-ms = <3>; | |
| nxp,scan-delay-ms = <34>; | |
| linux,keymap = <0x00000002>; | |
| }; |