ASoC: tegra: Remove SoC-specific Kconfig depends and selects

This removes the SoC-specific dependencies on the platform drivers,
as well as SoC-specific selections of platform drivers for the
machine drivers. The rationale behind this change is that the
dependencies are not actual build dependencies but run-time ones.

The previously listed SoCs were also incomplete: for instance, tegra124
uses the tegra30 platform drivers, which could not be built without
ARCH_TEGRA_3x_SOC set.

Descriptions of the tristates are also added to allow these options
to be set via defconfig/menuconfig.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/tegra/Kconfig

@@ -9,8 +9,8 @@ config SND_SOC_TEGRA
 	  Say Y or M here if you want support for SoC audio on Tegra.
 
 config SND_SOC_TEGRA20_AC97
-	tristate
-	depends on SND_SOC_TEGRA && ARCH_TEGRA_2x_SOC
+	tristate "Tegra20 AC97 interface"
+	depends on SND_SOC_TEGRA
 	select SND_SOC_AC97_BUS
 	select SND_SOC_TEGRA20_DAS
 	help
@@ -19,16 +19,16 @@ config SND_SOC_TEGRA20_AC97
 	  machine drivers to support below.
 
 config SND_SOC_TEGRA20_DAS
-	tristate
-	depends on SND_SOC_TEGRA && ARCH_TEGRA_2x_SOC
+	tristate "Tegra20 DAS module"
+	depends on SND_SOC_TEGRA
 	help
 	  Say Y or M if you want to add support for the Tegra20 DAS module.
 	  You will also need to select the individual machine drivers to
 	  support below.
 
 config SND_SOC_TEGRA20_I2S
-	tristate
-	depends on SND_SOC_TEGRA && ARCH_TEGRA_2x_SOC
+	tristate "Tegra20 I2S interface"
+	depends on SND_SOC_TEGRA
 	select SND_SOC_TEGRA20_DAS
 	help
 	  Say Y or M if you want to add support for codecs attached to the
@@ -36,8 +36,8 @@ config SND_SOC_TEGRA20_I2S
 	  machine drivers to support below.
 
 config SND_SOC_TEGRA20_SPDIF
-	tristate
-	depends on SND_SOC_TEGRA && ARCH_TEGRA_2x_SOC
+	tristate "Tegra20 SPDIF interface"
+	depends on SND_SOC_TEGRA
 	default m
 	help
 	  Say Y or M if you want to add support for the Tegra20 SPDIF interface.
@@ -45,16 +45,16 @@ config SND_SOC_TEGRA20_SPDIF
 	  below.
 
 config SND_SOC_TEGRA30_AHUB
-	tristate
-	depends on SND_SOC_TEGRA && ARCH_TEGRA_3x_SOC
+	tristate "Tegra30 AHUB module"
+	depends on SND_SOC_TEGRA
 	help
-	  Say Y or M if you want to add support for the Tegra20 AHUB module.
+	  Say Y or M if you want to add support for the Tegra30 AHUB module.
 	  You will also need to select the individual machine drivers to
 	  support below.
 
 config SND_SOC_TEGRA30_I2S
-	tristate
-	depends on SND_SOC_TEGRA && ARCH_TEGRA_3x_SOC
+	tristate "Tegra30 I2S interface"
+	depends on SND_SOC_TEGRA
 	select SND_SOC_TEGRA30_AHUB
 	help
 	  Say Y or M if you want to add support for codecs attached to the
@@ -64,8 +64,6 @@ config SND_SOC_TEGRA30_I2S
 config SND_SOC_TEGRA_RT5640
 	tristate "SoC Audio support for Tegra boards using an RT5640 codec"
 	depends on SND_SOC_TEGRA && I2C && GPIOLIB
-	select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC
-	select SND_SOC_TEGRA30_I2S if ARCH_TEGRA_3x_SOC
 	select SND_SOC_RT5640
 	help
 	  Say Y or M here if you want to add support for SoC audio on Tegra
@@ -74,8 +72,6 @@ config SND_SOC_TEGRA_RT5640
 config SND_SOC_TEGRA_WM8753
 	tristate "SoC Audio support for Tegra boards using a WM8753 codec"
 	depends on SND_SOC_TEGRA && I2C && GPIOLIB
-	select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC
-	select SND_SOC_TEGRA30_I2S if ARCH_TEGRA_3x_SOC
 	select SND_SOC_WM8753
 	help
 	  Say Y or M here if you want to add support for SoC audio on Tegra
@@ -84,8 +80,6 @@ config SND_SOC_TEGRA_WM8753
 config SND_SOC_TEGRA_WM8903
 	tristate "SoC Audio support for Tegra boards using a WM8903 codec"
 	depends on SND_SOC_TEGRA && I2C && GPIOLIB
-	select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC
-	select SND_SOC_TEGRA30_I2S if ARCH_TEGRA_3x_SOC
 	select SND_SOC_WM8903
 	help
 	  Say Y or M here if you want to add support for SoC audio on Tegra
@@ -94,7 +88,7 @@ config SND_SOC_TEGRA_WM8903
 
 config SND_SOC_TEGRA_WM9712
 	tristate "SoC Audio support for Tegra boards using a WM9712 codec"
-	depends on SND_SOC_TEGRA && ARCH_TEGRA_2x_SOC && GPIOLIB
+	depends on SND_SOC_TEGRA && GPIOLIB
 	select SND_SOC_TEGRA20_AC97
 	select SND_SOC_WM9712
 	help
@@ -104,7 +98,6 @@ config SND_SOC_TEGRA_WM9712
 config SND_SOC_TEGRA_TRIMSLICE
 	tristate "SoC Audio support for TrimSlice board"
 	depends on SND_SOC_TEGRA && I2C
-	select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC
 	select SND_SOC_TLV320AIC23_I2C
 	help
 	  Say Y or M here if you want to add support for SoC audio on the
@@ -113,7 +106,6 @@ config SND_SOC_TEGRA_TRIMSLICE
 config SND_SOC_TEGRA_ALC5632
 	tristate "SoC Audio support for Tegra boards using an ALC5632 codec"
 	depends on SND_SOC_TEGRA && I2C && GPIOLIB
-	select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC
 	select SND_SOC_ALC5632
 	help
 	  Say Y or M here if you want to add support for SoC audio on the
@@ -122,8 +114,6 @@ config SND_SOC_TEGRA_ALC5632
 config SND_SOC_TEGRA_MAX98090
 	tristate "SoC Audio support for Tegra boards using a MAX98090 codec"
 	depends on SND_SOC_TEGRA && I2C && GPIOLIB
-	select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC
-	select SND_SOC_TEGRA30_I2S if ARCH_TEGRA_3x_SOC
 	select SND_SOC_MAX98090
 	help
 	  Say Y or M here if you want to add support for SoC audio on Tegra
@@ -132,8 +122,6 @@ config SND_SOC_TEGRA_MAX98090
 config SND_SOC_TEGRA_RT5677
 	tristate "SoC Audio support for Tegra boards using a RT5677 codec"
 	depends on SND_SOC_TEGRA && I2C && GPIOLIB
-	select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC
-	select SND_SOC_TEGRA30_I2S if ARCH_TEGRA_3x_SOC
 	select SND_SOC_RT5677
 	help
 	  Say Y or M here if you want to add support for SoC audio on Tegra
@@ -142,8 +130,6 @@ config SND_SOC_TEGRA_RT5677
 config SND_SOC_TEGRA_SGTL5000
 	tristate "SoC Audio support for Tegra boards using a SGTL5000 codec"
 	depends on SND_SOC_TEGRA && I2C && GPIOLIB
-	select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC
-	select SND_SOC_TEGRA30_I2S if ARCH_TEGRA_3x_SOC
 	select SND_SOC_SGTL5000
 	help
 	  Say Y or M here if you want to add support for SoC audio on Tegra