39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
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# 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
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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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config SND_EP93XX_SOC_EDB93XX
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tristate "SoC Audio support for Cirrus Logic EDB93xx boards"
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depends on SND_EP93XX_SOC && (MACH_EDB9301 || MACH_EDB9302 || MACH_EDB9302A || MACH_EDB9307A || MACH_EDB9315A)
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select SND_EP93XX_SOC_I2S
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select SND_SOC_CS4271_I2C if I2C
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select SND_SOC_CS4271_SPI if SPI_MASTER
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help
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Say Y or M here if you want to add support for I2S audio on the
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Cirrus Logic EDB93xx boards.
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