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| author |   Nicolin Chen <nicoleotsuka@gmail.com> | 2014-07-30 19:27:38 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@linaro.org> | 2014-08-16 17:03:50 -0500 |
| commit | 708b4351f08c08ea93f773fb9197bdd3f3b08273 (patch) | |
| tree | 98a0acdefc213833a69f64c85ef2c5dc60716a1a /sound/soc/fsl/Kconfig | |
| parent | Linux 3.17-rc1 (diff) | |
| download | linux-dev-708b4351f08c08ea93f773fb9197bdd3f3b08273.tar.xz linux-dev-708b4351f08c08ea93f773fb9197bdd3f3b08273.zip | |
ASoC: fsl: Add Freescale Generic ASoC Sound Card with ASRC support
The Freescale Generic ASoC Sound Card is a general ASoC DAI Link driver that
can be used, ideally, for all Freescale CPU DAI drivers and external CODECs.
The idea of this generic sound card is a bit like ASoC Simple Card. However,
for Freescale SoCs (especially those released in recent years), most of them
have ASRC (Documentation/devicetree/bindings/sound/fsl,asrc.txt) inside. And
this is a specific feature that might be painstakingly controlled and merged
into the Simple Card driver.
So having this driver will allow all Freescale SoC users to benefit from the
simplification to support a new card and the capability of wide sample rates
support through ASRC.
The driver is initially designed for sound card using I2S or PCM DAI formats.
However, it's also possible to merge those non-I2S/PCM type sound cards, such
as S/PDIF audio and HDMI audio, into this card as long as the merge will not
break the original function and as long as there is something redundant that
can be abstracted along with I2S type sound cards.
As an initial version, it only supports three cards that I can test:
imx-audio-cs42888, a new card that links ESAI with CS42888 CODEC
imx-audio-sgtl5000, just like the old imx-sgtl5000.c driver
imx-audio-wm8962, just like the old imx-wm8962.c driver
The driver is also compatible with the old Device Tree bindings of WM8962 and
SGTL5000. So we may consider to remove those two drivers after this driver is
totally enabled. (It needs to be added into defconfig)
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/fsl/Kconfig')
| -rw-r--r-- | sound/soc/fsl/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index f54a8fc99291..2b99a9e86899 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -59,6 +59,22 @@ config SND_SOC_FSL_ESAI config SND_SOC_FSL_UTILS tristate +config SND_SOC_FSL_ASOC_CARD + tristate "Generic ASoC Sound Card with ASRC support" + depends on OF && I2C + select SND_SOC_IMX_PCM_DMA + select SND_SOC_FSL_ESAI + select SND_SOC_FSL_SAI + select SND_SOC_FSL_SSI + select SND_SOC_CS42XX8_I2C + select SND_SOC_SGTL5000 + select SND_SOC_WM8962 + help + ALSA SoC Audio support with ASRC feature for Freescale SoCs that have + ESAI/SAI/SSI and connect with external CODECs such as WM8962, CS42888 + and SGTL5000. + Say Y if you want to add support for Freescale Generic ASoC Sound Card. + config SND_SOC_IMX_PCM_DMA tristate select SND_SOC_GENERIC_DMAENGINE_PCM |