linux-kernel - Re: [PATCH 2/2] ASoC: atmel: compile pcm driver in snd-soc-atmel_ssc

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Date:	Tue, 26 May 2015 12:14:06 +0200
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Mark Brown <broonie@...nel.org>
CC:	Arnd Bergmann <arnd@...db.de>, <alsa-devel@...a-project.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] ASoC: atmel: compile pcm driver in snd-soc-atmel_ssc_dai

Le 26/05/2015 00:04, Alexandre Belloni a écrit :
> It is currently possible to have CONFIG_SND_ATMEL_SOC_SSC=y with either
> CONFIG_SND_ATMEL_SOC_PDC=m or CONFIG_SND_ATMEL_SOC_DMA=m. This results in a
> driver that compiles but does not link with this kind of error:
> 
> sound/built-in.o: In function `atmel_ssc_set_audio':
> (.text+0x87d90): undefined reference to `atmel_pcm_pdc_platform_register'
> sound/built-in.o: In function `atmel_ssc_put_audio':
> (.text+0x8879a): undefined reference to `atmel_pcm_pdc_platform_unregister'
> 
> Solve that by compiling the selected PCM driver (PDC, DMA or both) in the
> Atmel SSC DAI driver.
> 
> Reported-by: Randy Dunlap <rdunlap@...radead.org>
> 
> Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>

For the record:
Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>

> ---
>  sound/soc/atmel/Kconfig  | 4 ++--
>  sound/soc/atmel/Makefile | 8 +++-----
>  2 files changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig
> index 93abe4e6d596..c3152072d682 100644
> --- a/sound/soc/atmel/Kconfig
> +++ b/sound/soc/atmel/Kconfig
> @@ -9,10 +9,10 @@ config SND_ATMEL_SOC
>  if SND_ATMEL_SOC
>  
>  config SND_ATMEL_SOC_PDC
> -	tristate
> +	bool
>  
>  config SND_ATMEL_SOC_DMA
> -	tristate
> +	bool
>  	select SND_SOC_GENERIC_DMAENGINE_PCM
>  
>  config SND_ATMEL_SOC_SSC
> diff --git a/sound/soc/atmel/Makefile b/sound/soc/atmel/Makefile
> index b327e5cc8de3..4fa7ac91f972 100644
> --- a/sound/soc/atmel/Makefile
> +++ b/sound/soc/atmel/Makefile
> @@ -1,10 +1,8 @@
>  # AT91 Platform Support
> -snd-soc-atmel-pcm-pdc-objs := atmel-pcm-pdc.o
> -snd-soc-atmel-pcm-dma-objs := atmel-pcm-dma.o
> -snd-soc-atmel_ssc_dai-objs := atmel_ssc_dai.o
> +snd-soc-atmel-pcm-$(CONFIG_SND_ATMEL_SOC_PDC) := atmel-pcm-pdc.o
> +snd-soc-atmel-pcm-$(CONFIG_SND_ATMEL_SOC_DMA) += atmel-pcm-dma.o
> +snd-soc-atmel_ssc_dai-objs := atmel_ssc_dai.o $(snd-soc-atmel-pcm-y)
>  
> -obj-$(CONFIG_SND_ATMEL_SOC_PDC) += snd-soc-atmel-pcm-pdc.o
> -obj-$(CONFIG_SND_ATMEL_SOC_DMA) += snd-soc-atmel-pcm-dma.o
>  obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel_ssc_dai.o
>  
>  # AT91 Machine Support
> 


-- 
Nicolas Ferre
--
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