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f2818d07af
Hi Mark,
thanks your insisting on a better description for the patch, I found a
more appropriate solution for the problem:
Compiling the SoC Audio driver for Freescale i.MX as a module
(CONFIG_SND_SOC_IMX_PCM=m) results in a non-functional sound driver
indicated by the error message:
| imx-sgtl5000 sound.1: platform imx-pcm-audio not registered
| imx-sgtl5000 sound.1: snd_soc_register_card failed (-517)
| platform sound.1: Driver imx-sgtl5000 requests probe deferral
instead of the message:
| imx-sgtl5000 sound.1: sgtl5000 <-> 63fcc000.ssi mapping ok
that is to be expected upon loading the snd-soc-imx-pcm.ko module.
The build log reveals, that the file imx-pcm-dma.o (or imx-pcm-fiq.o
depending on the kernel configuration), which should be linked
together with imx-pcm.o into snd-imx-pcm.ko, is not being compiled in
this case.
The make rules for these files shows that the target object imx-pcm.o
is assigned to the variable snd-soc-imx-pcm-y while
imx-pcm-{dma,fiq}.o are added to to
snd-soc-imx-pcm-$(CONFIG_SND_SOC_IMX_PCM_DMA) and
snd-soc-imx-pcm-$(CONFIG_SND_SOC_IMX_PCM_FIQ) which resolve to
snd-soc-imx-pcm-m in this case.
According to Documentation/kbuild/modules.txt:
|When the module is built from multiple sources, an additional line is
|needed listing the files:
|
| <module_name>-y := <src1>.o <src2>.o ...
Thus the type of the config variables CONFIG_SND_SOC_IMX_PCM_DMA and
CONFIG_SND_SOC_IMX_PCM_FIQ should be 'bool' instead of 'tristate' to
resolve to 'y' when selected.
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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| .. | ||
| atmel | ||
| au1x | ||
| blackfin | ||
| cirrus | ||
| codecs | ||
| davinci | ||
| dwc | ||
| fsl | ||
| generic | ||
| jz4740 | ||
| kirkwood | ||
| mid-x86 | ||
| mxs | ||
| nuc900 | ||
| omap | ||
| pxa | ||
| s6000 | ||
| samsung | ||
| sh | ||
| spear | ||
| tegra | ||
| txx9 | ||
| ux500 | ||
| Kconfig | ||
| Makefile | ||
| soc-cache.c | ||
| soc-compress.c | ||
| soc-core.c | ||
| soc-dapm.c | ||
| soc-dmaengine-pcm.c | ||
| soc-io.c | ||
| soc-jack.c | ||
| soc-pcm.c | ||
| soc-utils.c | ||