1# SPDX-License-Identifier: GPL-2.0-only 2config SND_EP93XX_SOC 3 tristate "SoC Audio support for the Cirrus Logic EP93xx series" 4 depends on ARCH_EP93XX || COMPILE_TEST 5 select SND_SOC_GENERIC_DMAENGINE_PCM 6 help 7 Say Y or M if you want to add support for codecs attached to 8 the EP93xx I2S or AC97 interfaces. 9 10config SND_EP93XX_SOC_I2S 11 tristate 12 13if SND_EP93XX_SOC_I2S 14 15config SND_EP93XX_SOC_I2S_WATCHDOG 16 bool "IRQ based underflow watchdog workaround" 17 default y 18 help 19 I2S controller on EP93xx seems to have undocumented HW issue. 20 Underflow of internal I2S controller FIFO could confuse the 21 state machine and the whole stream can be shifted by one byte 22 until I2S is disabled. This option enables IRQ based watchdog 23 which disables and re-enables I2S in case of underflow and 24 fills FIFO with zeroes. 25 26 If you are unsure how to answer this question, answer Y. 27 28endif # if SND_EP93XX_SOC_I2S 29 30config SND_EP93XX_SOC_AC97 31 tristate 32 select AC97_BUS 33 select SND_SOC_AC97_BUS 34 35config SND_EP93XX_SOC_SNAPPERCL15 36 tristate "SoC Audio support for Bluewater Systems Snapper CL15 module" 37 depends on SND_EP93XX_SOC && MACH_SNAPPER_CL15 && I2C 38 select SND_EP93XX_SOC_I2S 39 select SND_SOC_TLV320AIC23_I2C 40 help 41 Say Y or M here if you want to add support for I2S audio on the 42 Bluewater Systems Snapper CL15 module. 43 44config SND_EP93XX_SOC_SIMONE 45 tristate "SoC Audio support for Simplemachines Sim.One board" 46 depends on SND_EP93XX_SOC && MACH_SIM_ONE 47 select SND_EP93XX_SOC_AC97 48 select SND_SOC_AC97_CODEC 49 help 50 Say Y or M here if you want to add support for AC97 audio on the 51 Simplemachines Sim.One board. 52 53config SND_EP93XX_SOC_EDB93XX 54 tristate "SoC Audio support for Cirrus Logic EDB93xx boards" 55 depends on SND_EP93XX_SOC && (MACH_EDB9301 || MACH_EDB9302 || MACH_EDB9302A || MACH_EDB9307A || MACH_EDB9315A) 56 select SND_EP93XX_SOC_I2S 57 select SND_SOC_CS4271_I2C if I2C 58 select SND_SOC_CS4271_SPI if SPI_MASTER 59 help 60 Say Y or M here if you want to add support for I2S audio on the 61 Cirrus Logic EDB93xx boards. 62