On Sat, Sep 28, 2019 at 04:16:41PM +0800, YueHaibing wrote: > when do randbuilding, I got this error: > > sound/soc/atmel/atmel_ssc_dai.o: In function `atmel_ssc_set_audio': > (.text+0x12f6): undefined reference to `atmel_pcm_pdc_platform_register' > > This is because SND_ATMEL_SOC_SSC_DMA=y, SND_ATMEL_SOC_SSC=y, > but SND_ATMEL_SOC_SSC_PDC=m. Fix it bt reintroducing the default Kconfig. Defaults won't forbid the invalid configuration. Can you try following: diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig index f118c229ed82..461f023c5635 100644 --- a/sound/soc/atmel/Kconfig +++ b/sound/soc/atmel/Kconfig @@ -12,10 +12,12 @@ if SND_ATMEL_SOC config SND_ATMEL_SOC_PDC tristate depends on HAS_DMA + select SND_ATMEL_SOC_SSC config SND_ATMEL_SOC_DMA tristate select SND_SOC_GENERIC_DMAENGINE_PCM + select SND_ATMEL_SOC_SSC config SND_ATMEL_SOC_SSC tristate @@ -24,7 +26,6 @@ config SND_ATMEL_SOC_SSC_PDC tristate "SoC PCM DAI support for AT91 SSC controller using PDC" depends on ATMEL_SSC select SND_ATMEL_SOC_PDC - select SND_ATMEL_SOC_SSC help Say Y or M if you want to add support for Atmel SSC interface in PDC mode configured using audio-graph-card in device-tree. @@ -33,7 +34,6 @@ config SND_ATMEL_SOC_SSC_DMA tristate "SoC PCM DAI support for AT91 SSC controller using DMA" depends on ATMEL_SSC select SND_ATMEL_SOC_DMA - select SND_ATMEL_SOC_SSC help Say Y or M if you want to add support for Atmel SSC interface in DMA mode configured using audio-graph-card in device-tree. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel