1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 config SND_EP93XX_SOC 2 config SND_EP93XX_SOC
3 tristate "SoC Audio support for the Ci 3 tristate "SoC Audio support for the Cirrus Logic EP93xx series"
4 depends on ARCH_EP93XX || COMPILE_TEST 4 depends on ARCH_EP93XX || COMPILE_TEST
5 select SND_SOC_GENERIC_DMAENGINE_PCM 5 select SND_SOC_GENERIC_DMAENGINE_PCM
6 help 6 help
7 Say Y or M if you want to add suppor 7 Say Y or M if you want to add support for codecs attached to
8 the EP93xx I2S or AC97 interfaces. 8 the EP93xx I2S or AC97 interfaces.
9 9
10 config SND_EP93XX_SOC_I2S 10 config SND_EP93XX_SOC_I2S
11 tristate "I2S controller support for t !! 11 tristate
12 depends on SND_EP93XX_SOC <<
13 help <<
14 Say Y or M if you want to add suppor <<
15 the EP93xx I2S interface. <<
16 12
17 if SND_EP93XX_SOC_I2S 13 if SND_EP93XX_SOC_I2S
18 14
19 config SND_EP93XX_SOC_I2S_WATCHDOG 15 config SND_EP93XX_SOC_I2S_WATCHDOG
20 bool "IRQ based underflow watchdog wor 16 bool "IRQ based underflow watchdog workaround"
21 default y 17 default y
22 help 18 help
23 I2S controller on EP93xx seems to ha 19 I2S controller on EP93xx seems to have undocumented HW issue.
24 Underflow of internal I2S controller 20 Underflow of internal I2S controller FIFO could confuse the
25 state machine and the whole stream c 21 state machine and the whole stream can be shifted by one byte
26 until I2S is disabled. This option e 22 until I2S is disabled. This option enables IRQ based watchdog
27 which disables and re-enables I2S in 23 which disables and re-enables I2S in case of underflow and
28 fills FIFO with zeroes. 24 fills FIFO with zeroes.
29 25
30 If you are unsure how to answer this 26 If you are unsure how to answer this question, answer Y.
31 27
32 endif # if SND_EP93XX_SOC_I2S 28 endif # if SND_EP93XX_SOC_I2S
33 29
>> 30 config SND_EP93XX_SOC_AC97
>> 31 tristate
>> 32 select AC97_BUS
>> 33 select SND_SOC_AC97_BUS
>> 34
>> 35 config 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
>> 44 config 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
>> 53 config 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.
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