# SPDX-License-Identifier: GPL-2.0-only config SND_EP93XX_SOC tristate "SoC Audio support for the Cirrus Logic EP93xx series" depends on ARCH_EP93XX || COMPILE_TEST select SND_SOC_GENERIC_DMAENGINE_PCM help Say Y or M if you want to add support for codecs attached to the EP93xx I2S or AC97 interfaces. config SND_EP93XX_SOC_I2S tristate "I2S controller support for the Cirrus Logic EP93xx series" depends on SND_EP93XX_SOC help Say Y or M if you want to add support for codecs attached to the EP93xx I2S interface. if SND_EP93XX_SOC_I2S config SND_EP93XX_SOC_I2S_WATCHDOG bool "IRQ based underflow watchdog workaround" default y help I2S controller on EP93xx seems to have undocumented HW issue. Underflow of internal I2S controller FIFO could confuse the state machine and the whole stream can be shifted by one byte until I2S is disabled. This option enables IRQ based watchdog which disables and re-enables I2S in case of underflow and fills FIFO with zeroes. If you are unsure how to answer this question, answer Y. endif # if SND_EP93XX_SOC_I2S config SND_EP93XX_SOC_EDB93XX tristate "SoC Audio support for Cirrus Logic EDB93xx boards" depends on SND_EP93XX_SOC && (MACH_EDB9301 || MACH_EDB9302 || MACH_EDB9302A || MACH_EDB9307A || MACH_EDB9315A) select SND_EP93XX_SOC_I2S select SND_SOC_CS4271_I2C if I2C select SND_SOC_CS4271_SPI if SPI_MASTER help Say Y or M here if you want to add support for I2S audio on the Cirrus Logic EDB93xx boards.