| # Copyright (c) 2018, Aapo Vienamo |
| # Copyright (c) 2021, Laird Connectivity |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: TCA9538 GPIO node |
| |
| compatible: "ti,tca9538" |
| |
| include: [i2c-device.yaml, gpio-controller.yaml] |
| |
| properties: |
| "#gpio-cells": |
| const: 2 |
| |
| ngpios: |
| required: true |
| const: 8 |
| description: | |
| Number of GPIOs available on port expander. |
| |
| nint-gpios: |
| type: phandle-array |
| description: | |
| Connection for the NINT signal. This signal is active-low when |
| produced by tca9538 GPIO node. |
| |
| input-latch: |
| type: int |
| description: | |
| Input latch register bit is 0 by default and the input pin state |
| is not latched. When input latch register bit is 1 and the input |
| pin state is latched. |
| |
| interrupt-mask: |
| type: int |
| description: | |
| Interrupt mask register is set to logic 1 by default without |
| enabling interrupts. Setting corresponding mask bits to logic |
| 0 to enable the interrupts. |
| |
| gpio-cells: |
| - pin |
| - flags |
