| # Copyright (c) 2019 Nordic Semiconductor ASA |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: Nordic I2S (Inter-IC sound interface) |
| |
| compatible: "nordic,nrf-i2s" |
| |
| include: [i2s-controller.yaml, pinctrl-device.yaml] |
| |
| properties: |
| reg: |
| required: true |
| |
| interrupts: |
| required: true |
| |
| pinctrl-0: |
| required: true |
| |
| clock-source: |
| type: string |
| default: "PCLK32M_HFXO" |
| description: | |
| Clock source to be used by the I2S peripheral for the master clock |
| (MCK) generator. The generator is only needed when the I2S peripheral |
| is operating in Master mode. The following options are available: |
| - "PCLK32M": 32 MHz peripheral clock, synchronous to HFCLK |
| - "PCLK32M_HFXO": PCLK32M running off the 32 MHz crystal oscillator |
| (HFXO) for better clock accuracy and jitter performance |
| - "ACLK": Audio PLL clock with configurable frequency (frequency for |
| this clock must be set via the "hfclkaudio-frequency" property |
| in the "nordic,nrf-clock" node); this clock source is only available |
| in the nRF53 Series SoCs and it requires the use of HFXO |
| enum: |
| - "PCLK32M" |
| - "PCLK32M_HFXO" |
| - "ACLK" |
