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# 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
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