1# SPDX-License-Identifier: GPL-2.0-only 2config SND_DESIGNWARE_I2S 3 tristate "Synopsys I2S Device Driver" 4 depends on CLKDEV_LOOKUP 5 select SND_SOC_GENERIC_DMAENGINE_PCM 6 help 7 Say Y or M if you want to add support for I2S driver for 8 Synopsys designware I2S device. The device supports up to 9 a maximum of 8 channels each for play and record. 10 11config SND_DESIGNWARE_PCM 12 bool "PCM PIO extension for I2S driver" 13 depends on SND_DESIGNWARE_I2S 14 help 15 Say Y or N if you want to add a custom ALSA extension that registers 16 a PCM and uses PIO to transfer data. 17 18 This functionality is specially suited for I2S devices that don't have 19 DMA support. 20 21