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

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Date:	Wed, 27 May 2015 09:50:24 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Cc:	Nicolas Ferre <nicolas.ferre@...el.com>,
	Mark Brown <broonie@...nel.org>, 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

Now that this patch is already applied my remarks can only be addressed
in a follow up patch. (Perhaps such a patch is already queued.)

On Tue, 2015-05-26 at 00:04 +0200, Alexandre Belloni wrote:
> --- a/sound/soc/atmel/Kconfig
> +++ b/sound/soc/atmel/Kconfig
 
>  config SND_ATMEL_SOC_PDC
> -	tristate
> +	bool
>  
>  config SND_ATMEL_SOC_DMA
> -	tristate
> +	bool
>  	select SND_SOC_GENERIC_DMAENGINE_PCM

> --- a/sound/soc/atmel/Makefile
> +++ b/sound/soc/atmel/Makefile

> -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

The code in atmel-pcm-pdc.c and atmel-pcm-dma.c will now either be part
of the snd-soc-atmel_ssc_dai.ko or be built-in. That means, I think,
that:
- the (in total) four uses of EXPORT_SYMBOL() in these two files can be
  dropped;
- MODULE_AUTHOR() and friends, and probably also the include of
  linux/module.h, can be dropped from these two files.

Furthermore, the references to CONFIG_SND_ATMEL_SOC_PDC_MODULE and
CONFIG_SND_ATMEL_SOC_DMA_MODULE in atmel-pcm.h can be removed now.

Thanks,


Paul Bolle

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