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

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 !=3D 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 !=3D n
+       select SND_SOC_IMX_PCM_DMA
        select SND_SOC_IMX_PCM_FIQ if SND_IMX_SOC !=3D n && (MXC_TZIC || MX=

C_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 !=3D n
+       select SND_SOC_IMX_PCM_DMA
        select SND_SOC_IMX_PCM_FIQ if SND_IMX_SOC !=3D n && (MXC_TZIC || MX=

C_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 !=3D 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

Thanks,


BRs
Xiubo

-----Original Message-----
From: Shengjiu Wang [mailto:shengjiu.wang@freescale.com]
Sent: Tuesday, August 19, 2014 4:21 PM
To: Xiubo Li-B47053
Cc: Lars-Peter Clausen; lgirdwood@gmail.com; broonie@kernel.org;
perex@perex.cz; tiwai@suse.de; nicoleotsuka@gmail.com; shc_work@mail.ru;
Estevam Fabio-R49496; xobs@kosagi.com; arnd@arndb.de; sfr@canb.auug.org.a=

u;

timur@tabi.org; alsa-devel@alsa-project.org; linuxppc-dev@lists.ozlabs.or=

g;

linux-kernel@vger.kernel.org
Subject: Re: [alsa-devel] [PATCH V1 1/3] ASoC: fsl: Kconfig: remove depen=

dence

of SND_IMX_SOC for SND_SOC_IMX_PCM_DMA
=20
On Tue, Aug 19, 2014 at 04:13:15PM +0800, Xiubo Li-B47053 wrote:

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Subject: Re: [alsa-devel] [PATCH V1 1/3] ASoC: fsl: Kconfig: remove

dependence

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of SND_IMX_SOC for SND_SOC_IMX_PCM_DMA

On Mon, Aug 18, 2014 at 06:52:46PM +0200, Lars-Peter Clausen wrote:

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On 08/18/2014 10:38 AM, Shengjiu Wang wrote:

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Build kernel with SND_SOC_IMC_PCM_DMA=3Dm && SND_IMX_SOC=3Dn leads=

 the

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following

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error:

   sound/built-in.o: In function `fsl_sai_probe':

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fsl_sai.c:(.text+0x5f662): undefined reference to `imx_pcm_dma_i=

nit'

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   sound/built-in.o: In function `fsl_esai_probe':

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fsl_esai.c:(.text+0x6044b): undefined reference to `imx_pcm_dma_=

init'

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Most cpu driver in soc/fsl has use the function 'imx_pcm_dma_init'

which is

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defined in imx-pcm-dma.c, so need to select SND_SOC_IMX_PCM_DMA, b=

ut it

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depends

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on SND_IMX_SOC, if SND_IMX_SOC=3Dn, then SND_SOC_IMX_PCM_DMA will =

not be

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selected.
So remove the dependence of SND_IMX_SOC for SND_SOC_IMX_PCM_DMA.

Reported-by: kbuild test robot <redacted>
Signed-off-by: Shengjiu Wang <redacted>

Those if conditions where just added[1] by Arnd to avoid other buil=

d

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failures. So just removing them again makes little sense.

As far as I can see imx_pcm_dma_init() should be stubbed out when
SND_SOC_IMX_PCM_DMA is not selected. So what's going on here?

[1]

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=

=3Dff40

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260f79dc0436604452bccd449bffd25ebafb

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Lars-Peter Clausen & Arnd

The purpose of Arnd's patch is same with me, which is to resolve the =

build

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error when SND_SOC_IMX_PCM_DMA=3Dm & SND_SOC_FSL_SSI/SAI/ESAI/SPDIF=

=3Dy, the

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error is "undefined reference to `imx_pcm_dma_init'".
But Arnd's patch didn't involve this situation that SND_IMX_SOC=3Dn &
SND_SOC_IMX_PCM_DMA=3Dm.

Currently I think out a solution for this issue is to change

select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC !=3D n

to

depends on SND_SOC_IMX_PCM_DMA !=3D m

How do you think about this?

What will happen if to build both SAI/ESAI and IMX_PCM_DMA as modules a=

t the

same

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time ?

Thanks,

BRs
Xiubo

=20
I didn't find error/warning when SAI/ESAI and IMX_PCM_DMA are as modules.=

 The

build is successful.
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best regards
Wang shengjiu