29ed9cec87
Can be replaced with "simple-audio-card" for the rates up to 50kHz, refer to commit "ARM: dts: ep93xx: Add EDB9302 DT". Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
34 lines
1.1 KiB
Plaintext
34 lines
1.1 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config SND_EP93XX_SOC
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tristate "SoC Audio support for the Cirrus Logic EP93xx series"
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depends on ARCH_EP93XX || COMPILE_TEST
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select SND_SOC_GENERIC_DMAENGINE_PCM
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help
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Say Y or M if you want to add support for codecs attached to
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the EP93xx I2S or AC97 interfaces.
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config SND_EP93XX_SOC_I2S
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tristate "I2S controller support for the Cirrus Logic EP93xx series"
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depends on SND_EP93XX_SOC
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help
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Say Y or M if you want to add support for codecs attached to
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the EP93xx I2S interface.
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if SND_EP93XX_SOC_I2S
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config SND_EP93XX_SOC_I2S_WATCHDOG
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bool "IRQ based underflow watchdog workaround"
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default y
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help
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I2S controller on EP93xx seems to have undocumented HW issue.
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Underflow of internal I2S controller FIFO could confuse the
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state machine and the whole stream can be shifted by one byte
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until I2S is disabled. This option enables IRQ based watchdog
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which disables and re-enables I2S in case of underflow and
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fills FIFO with zeroes.
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If you are unsure how to answer this question, answer Y.
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endif # if SND_EP93XX_SOC_I2S
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