sound/soc/dwc/Kconfig

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