| # Copyright 2024 NXP |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: Base binding for PCA series I2C-based GPIO expander |
| |
| include: [gpio-controller.yaml, i2c-device.yaml] |
| |
| # Currently supported device: |
| # pca9538 pca9539 |
| # pca9574 pca9575 |
| # pcal9538 pcal9539 |
| # pcal6408a pcal6416a |
| # pcal6524 pcal6534 |
| # |
| # PCA9538 compatible with PCA9534 PCA9554 |
| # PCA9539 compatible with PCA9535 PCA9555 |
| # PCAL9538 compatible with PCAL9554 PCAL6408A(*a) |
| # PCAL9539 compatible with PCAL9555 PCAL6416A(*a) |
| # (a) PCAL64xxA series support voltage level translation, |
| # but has no difference from driver's view. |
| # (b) PCAL6534 has 34 GPIO pins in 4x 8-bit port and 1x |
| # 2-bit port. This driver only support 4x 8-bit port. |
| |
| properties: |
| reset-gpios: |
| type: phandle-array |
| description: |
| Reset GPIO pin (active-low) |
| Left blank if the device does not have reset pin |
| or the pin is not connected in your application. |
| |
| int-gpios: |
| type: phandle-array |
| description: |
| Interrupt GPIO pin (active-low open-drain) |
| Left blank if the pin is not connected in your |
| application. |
| |
| "#gpio-cells": |
| const: 2 |
| |
| gpio-cells: |
| - pin |
| - flags |
