/* i2s_speed with CONFIG_I2S_TEST_SEPARATE_DEVICES=n uses only one I2S peripheral: * i2s-node0 is both the transitter and receiver. * uses SAI1 peripheral on RT1170 */ / { aliases { i2s-node0 = &sai1; }; }; /* Default DMA channel 0 and 1 maybe used by other peripherals like UART. */ &sai1 { nxp,tx-dma-channel = <8>; nxp,rx-dma-channel = <9>; };