162306a36Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ciconfig SND_EP93XX_SOC 362306a36Sopenharmony_ci tristate "SoC Audio support for the Cirrus Logic EP93xx series" 462306a36Sopenharmony_ci depends on ARCH_EP93XX || COMPILE_TEST 562306a36Sopenharmony_ci select SND_SOC_GENERIC_DMAENGINE_PCM 662306a36Sopenharmony_ci help 762306a36Sopenharmony_ci Say Y or M if you want to add support for codecs attached to 862306a36Sopenharmony_ci the EP93xx I2S or AC97 interfaces. 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ciconfig SND_EP93XX_SOC_I2S 1162306a36Sopenharmony_ci tristate "I2S controller support for the Cirrus Logic EP93xx series" 1262306a36Sopenharmony_ci depends on SND_EP93XX_SOC 1362306a36Sopenharmony_ci help 1462306a36Sopenharmony_ci Say Y or M if you want to add support for codecs attached to 1562306a36Sopenharmony_ci the EP93xx I2S interface. 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ciif SND_EP93XX_SOC_I2S 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ciconfig SND_EP93XX_SOC_I2S_WATCHDOG 2062306a36Sopenharmony_ci bool "IRQ based underflow watchdog workaround" 2162306a36Sopenharmony_ci default y 2262306a36Sopenharmony_ci help 2362306a36Sopenharmony_ci I2S controller on EP93xx seems to have undocumented HW issue. 2462306a36Sopenharmony_ci Underflow of internal I2S controller FIFO could confuse the 2562306a36Sopenharmony_ci state machine and the whole stream can be shifted by one byte 2662306a36Sopenharmony_ci until I2S is disabled. This option enables IRQ based watchdog 2762306a36Sopenharmony_ci which disables and re-enables I2S in case of underflow and 2862306a36Sopenharmony_ci fills FIFO with zeroes. 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci If you are unsure how to answer this question, answer Y. 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ciendif # if SND_EP93XX_SOC_I2S 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ciconfig SND_EP93XX_SOC_EDB93XX 3562306a36Sopenharmony_ci tristate "SoC Audio support for Cirrus Logic EDB93xx boards" 3662306a36Sopenharmony_ci depends on SND_EP93XX_SOC && (MACH_EDB9301 || MACH_EDB9302 || MACH_EDB9302A || MACH_EDB9307A || MACH_EDB9315A) 3762306a36Sopenharmony_ci select SND_EP93XX_SOC_I2S 3862306a36Sopenharmony_ci select SND_SOC_CS4271_I2C if I2C 3962306a36Sopenharmony_ci select SND_SOC_CS4271_SPI if SPI_MASTER 4062306a36Sopenharmony_ci help 4162306a36Sopenharmony_ci Say Y or M here if you want to add support for I2S audio on the 4262306a36Sopenharmony_ci Cirrus Logic EDB93xx boards. 43