| # Copyright (c) 2024 ZAL Zentrum für Angewandte Luftfahrtforschung GmbH |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: STM32 SAI controller |
| |
| compatible: "st,stm32-sai" |
| |
| include: [i2s-controller.yaml, pinctrl-device.yaml] |
| |
| properties: |
| reg: |
| required: true |
| |
| dmas: |
| required: true |
| |
| dma-names: |
| required: true |
| description: | |
| DMA channel name: "tx" or "rx", depending of expected device behavior. |
| |
| pinctrl-0: |
| required: true |
| |
| pinctrl-names: |
| required: true |
| |
| mclk-enable: |
| type: boolean |
| description: | |
| Master Clock Output function. |
| An mck pin must be listed within pinctrl-0 when enabling this property. |
| |
| mclk-divider: |
| type: string |
| default: "no-div" |
| description: | |
| Master Clock Divider Configuration. |
| |
| When no-div property is present: |
| - MCKDIV = SAI_CK_x / (FS * (FRL + 1)) |
| Otherwise: |
| - MCKDIV = SAI_CK_x / (FS * (OSR + 1) * 256) |
| |
| When div-256 is present OSR is set to 0. |
| When div-512 is present OSR is set to 1. |
| enum: |
| - "no-div" |
| - "div-256" |
| - "div-512" |
| |
| synchronous: |
| type: boolean |
| description: | |
| Synchronous mode. |
| When present, the SAI controller is configured to work in synchronous mode. |
