ASoC: tegra: introduce separate Kconfig variable for DAS driver

This is mainly for symmetry with a future Tegra30 driver, where the
equivalent of the DAS (the AHUB) is useful separately from the I2S driver.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig
index f8fcda33208e..23ab00d5b192 100644
--- a/sound/soc/tegra/Kconfig
+++ b/sound/soc/tegra/Kconfig
@@ -4,9 +4,18 @@ config SND_SOC_TEGRA
         help
           Say Y or M here if you want support for SoC audio on Tegra.
 
+config SND_SOC_TEGRA_DAS
+        tristate "Tegra Digital Audio Switch driver"
+        depends on SND_SOC_TEGRA
+        help
+          Say Y or M if you want to add support for the Tegra DAS module.
+          You will also need to select the individual machine drivers to
+          support below.
+
 config SND_SOC_TEGRA_I2S
         tristate
         depends on SND_SOC_TEGRA
+        select SND_SOC_TEGRA_DAS
         help
           Say Y or M if you want to add support for codecs attached to the
           Tegra I2S interface. You will also need to select the individual