linux/sound/soc/stm/Kconfig
Arnd Bergmann 9cee7972bd
ASoC: stm32: select IIO_BUFFER
The new stm32_adfsdm driver has incomplete dependencies as shown
by Kconfig:

warning: (SND_SOC_STM32_DFSDM && LMP91000) selects IIO_BUFFER_CB which has unmet direct dependencies (IIO && IIO_BUFFER)
sound/soc/stm/stm32_adfsdm.o: In function `stm32_adfsdm_trigger':
stm32_adfsdm.c:(.text+0x8c): undefined reference to `stm32_dfsdm_get_buff_cb'
stm32_adfsdm.c:(.text+0x9c): undefined reference to `stm32_dfsdm_release_buff_cb'

This makes the dependency on SND_SOC_STM32_DFSDM unconditional, so we can
always resolve the stm32_dfsdm_get_buff_cb/stm32_dfsdm_release_buff_cb
symbols and get the implied IIO_BUFFER dependency.

compile-testing on other platforms is still possible as long as that IIO
driver is there.

Fixes: 55da094824 ("ASoC: stm32: add DFSDM DAI support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-11 10:39:19 +00:00

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menu "STMicroelectronics STM32 SOC audio support"
config SND_SOC_STM32_SAI
tristate "STM32 SAI interface (Serial Audio Interface) support"
depends on ARCH_STM32 || COMPILE_TEST
depends on SND_SOC
select SND_SOC_GENERIC_DMAENGINE_PCM
select REGMAP_MMIO
help
Say Y if you want to enable SAI for STM32
config SND_SOC_STM32_I2S
tristate "STM32 I2S interface (SPI/I2S block) support"
depends on ARCH_STM32 || COMPILE_TEST
depends on SND_SOC
select SND_SOC_GENERIC_DMAENGINE_PCM
select REGMAP_MMIO
help
Say Y if you want to enable I2S for STM32
config SND_SOC_STM32_SPDIFRX
tristate "STM32 S/PDIF receiver (SPDIFRX) support"
depends on ARCH_STM32 || COMPILE_TEST
depends on SND_SOC
select SND_SOC_GENERIC_DMAENGINE_PCM
select REGMAP_MMIO
select SND_SOC_SPDIF
help
Say Y if you want to enable S/PDIF capture for STM32
config SND_SOC_STM32_DFSDM
tristate "SoC Audio support for STM32 DFSDM"
depends on ARCH_STM32 || COMPILE_TEST
depends on SND_SOC
depends on STM32_DFSDM_ADC
select SND_SOC_GENERIC_DMAENGINE_PCM
select SND_SOC_DMIC
select IIO_BUFFER_CB
help
Select this option to enable the STM32 Digital Filter
for Sigma Delta Modulators (DFSDM) driver used
in various STM32 series for digital microphone capture.
endmenu