Re: [alsa-devel] [PATCH V1 1/3] ASoC: fsl: Kconfig: remove dependence of SND_IMX_SOC for SND_SOC_IMX_PCM_DMA

[Takashi Iwai <tiwai@suse.de>]

At Tue, 19 Aug 2014 09:00:06 +0000,
Li.Xiubo@freescale.com wrote:
> 
> How about the following :
> 
> 
> diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig
> index 5ae777a..d42f18c 100644
> --- a/sound/soc/fsl/Kconfig
> +++ b/sound/soc/fsl/Kconfig
> @@ -15,7 +15,7 @@ config SND_SOC_FSL_ASRC
>  config SND_SOC_FSL_SAI
>         tristate "Synchronous Audio Interface (SAI) module support"
>         select REGMAP_MMIO
> -       select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
> +       select SND_SOC_IMX_PCM_DMA
>         select SND_SOC_GENERIC_DMAENGINE_PCM
>         help
>           Say Y if you want to add Synchronous Audio Interface (SAI)
> @@ -25,7 +25,7 @@ config SND_SOC_FSL_SAI
> 
>  config SND_SOC_FSL_SSI
>         tristate "Synchronous Serial Interface module support"
> -       select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
> +       select SND_SOC_IMX_PCM_DMA
>         select SND_SOC_IMX_PCM_FIQ if SND_IMX_SOC != n && (MXC_TZIC || MXC_AVIC)
>         select REGMAP_MMIO
>         help
> @@ -37,7 +37,7 @@ config SND_SOC_FSL_SSI
>  config SND_SOC_FSL_SPDIF
>         tristate "Sony/Philips Digital Interface module support"
>         select REGMAP_MMIO
> -       select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
> +       select SND_SOC_IMX_PCM_DMA
>         select SND_SOC_IMX_PCM_FIQ if SND_IMX_SOC != n && (MXC_TZIC || MXC_AVIC)
>         help
>           Say Y if you want to add Sony/Philips Digital Interface (SPDIF)
> @@ -48,7 +48,7 @@ config SND_SOC_FSL_SPDIF
>  config SND_SOC_FSL_ESAI
>         tristate "Enhanced Serial Audio Interface (ESAI) module support"
>         select REGMAP_MMIO
> -       select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
> +       select SND_SOC_IMX_PCM_DMA
>         help
>           Say Y if you want to add Enhanced Synchronous Audio Interface
>           (ESAI) support for the Freescale CPUs.
> @@ -76,6 +76,7 @@ config SND_SOC_FSL_ASOC_CARD
> 
>  config SND_SOC_IMX_PCM_DMA
>         tristate
> +       depends on SND_IMX_SOC
>         select SND_SOC_GENERIC_DMAENGINE_PCM
> 
>  config SND_SOC_IMX_AUDMUX

I see the problem has been addressed, so JFYI: a reverse selection
doesn't resolve "depends on".  It's a known shortcoming.  That is, a
selected item can select further others, but cannot depend on others.


Takashi