On Tue, Nov 24, 2015 at 11:21:10PM +0100, Arnd Bergmann wrote:
> A new randconfig build failure shows that the fsl-asoc-card module
> must not be built-in when the AC97 driver is a loadable module:
>
> sound/built-in.o: In function `fsl_asoc_card_late_probe':
> :(.text+0x571d8): undefined reference to `snd_ac97_update_bits'
>
> I couldn't come up with a nice solution, so this adds another dependency
> on "X || !X", which is the Kconfig way of saying that we have an
> optional dependency on something that might be a loadable module.
>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Acked-by: Nicolin Chen <nicoleotsuka@xxxxxxxxx>
Thank you
> Fixes: 50760cad9de9 ("ASoC: fsl-asoc-card: add AC'97 support")
> ---
> The commit that introduced this was merged for 4.4-rc1, so we might
> want the fix to go into 4.4 as well.
>
> diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig
> index 19c302b0d763..14dfdee05fd5 100644
> --- a/sound/soc/fsl/Kconfig
> +++ b/sound/soc/fsl/Kconfig
> @@ -283,6 +283,8 @@ config SND_SOC_IMX_MC13783
> config SND_SOC_FSL_ASOC_CARD
> tristate "Generic ASoC Sound Card with ASRC support"
> depends on OF && I2C
> + # enforce SND_SOC_FSL_ASOC_CARD=m if SND_AC97_CODEC=m:
> + depends on SND_AC97_CODEC || SND_AC97_CODEC=n
> select SND_SOC_IMX_AUDMUX
> select SND_SOC_IMX_PCM_DMA
> select SND_SOC_FSL_ESAI
>
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