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ASoC: fsl: select SND_SOC_IMX_PCM_DMA where needed 

Since commit 204dec93ea "ASoC: fsl: Allow to select individual common
options", it is possible to enable SND_SOC_FSL_SSI and SND_SOC_FSL_SPDIF
manually, either as loadable modules or built-in. This unfortunately
leads to a link error if one or both of them are built-in, while
the imx-pcm-dma framework is a loadable module:

sound/built-in.o: In function `fsl_ssi_probe':
:(.text+0x51fb8): undefined reference to `imx_pcm_dma_init'
sound/built-in.o: In function `fsl_spdif_probe':
:(.text+0x52e20): undefined reference to `imx_pcm_dma_init'

This changes Kconfig to prevent this case by using 'select' to turn
on the imx-pcm-dma code from both drivers. For consistency, we also
turn on the imx-pcm-fiq code, which is an alternative to the dma
implementation.

Note that imx-pcm-fiq is platform dependent, so we must not enable
that unless we are building a kernel for i.MX. Note also the
"if SND_IMX_SOC != n" syntax as opposed to the normal "if SND_IMX_SOC".
This is needed to avoid turning on the options as 'm' if 'SND_IMX_SOC'
is a module.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Arnd Bergmann 2014-04-29 21:36:22 +02:00 committed by Mark Brown
parent 40e3b934be
commit 31ee2bfd72
1 changed files with 4 additions and 0 deletions
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4
sound/soc/fsl/Kconfig
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@ -14,6 +14,8 @@ 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_FIQ if SND_IMX_SOC != n && ARCH_MXC
help
Say Y if you want to add Synchronous Serial Interface (SSI)
support for the Freescale CPUs.
@ -23,6 +25,8 @@ 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_FIQ if SND_IMX_SOC != n && ARCH_MXC
help
Say Y if you want to add Sony/Philips Digital Interface (SPDIF)
support for the Freescale CPUs.