| # Copyright (c) 2019 Mohamed ElShahawi (ExtremeGTX@hotmail.com) |
| # Copyright (c) 2022 Espressif Systems (Shanghai) Co., Ltd. |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: ESP32 I2C |
| |
| compatible: "espressif,esp32-i2c" |
| |
| include: [i2c-controller.yaml, pinctrl-device.yaml] |
| |
| properties: |
| reg: |
| required: true |
| |
| pinctrl-0: |
| required: true |
| |
| pinctrl-names: |
| required: true |
| |
| scl-gpios: |
| type: phandle-array |
| description: | |
| GPIO to which the I2C SCL signal is routed. This is only required |
| if the target SoC does not have support in hardware for clearing |
| the I2C bus in case of a communication failure |
| |
| sda-gpios: |
| type: phandle-array |
| description: | |
| GPIO to which the I2C SDA signal is routed. This is only required |
| if the target SoC does not have support in hardware for clearing |
| the I2C bus in case of a communication failure |
| |
| tx-lsb: |
| type: boolean |
| description: Set I2C TX data as LSB |
| |
| rx-lsb: |
| type: boolean |
| description: Set I2C RX data as LSB |
| |
| scl-timeout-us: |
| type: int |
| description: | |
| Timeout for unchanged SCL during clock stretching of the I2C target in |
| microseconds. |
| |
| If not set or 0, the timeout is disabled or set to the maximum possible |
| value if the MCU does not support disabling the timeout. |
