[ALSA] ASoC AT91RM92000 build

This patch adds a Makefile and Kconfig to build the ASoC AT91RM9200
support.
Signed-off-by: Frank Mandarino <fmandarino@endrelia.com>
Signed-off-by: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/soc/Kconfig

@@ -19,6 +19,12 @@ config SND_SOC
 	  This SoC audio support can also be built as a module.  If so, the module
 	  will be called snd-soc-core.
 
+# All the supported Soc's
+menu "SoC Platforms"
+depends on SND_SOC
+source "sound/soc/at91/Kconfig"
+endmenu
+
 # Supported codecs
 source "sound/soc/codecs/Kconfig"
 

sound/soc/Makefile

 snd-soc-core-objs := soc-core.o soc-dapm.o
 
 obj-$(CONFIG_SND_SOC)	+= snd-soc-core.o
-obj-$(CONFIG_SND_SOC)	+= codecs/
+obj-$(CONFIG_SND_SOC)	+= codecs/ at91/

sound/soc/at91/Kconfig

+menu "SoC Audio for the Atmel AT91"
+
+config SND_AT91_SOC
+	tristate "SoC Audio for the Atmel AT91 System-on-Chip"
+	depends on ARCH_AT91 && SND
+	select SND_PCM
+	help
+	  Say Y or M if you want to add support for codecs attached to
+	  the AT91 SSC interface. You will also need
+	  to select the audio interfaces to support below.
+
+config SND_AT91_SOC_I2S
+	tristate
+
+config SND_AT91_SOC_ETI_B1_WM8731
+	tristate "SoC I2S Audio support for Endrelia ETI-B1 board"
+	depends on SND_AT91_SOC && MACH_ETI_B1
+	select SND_AT91_SOC_I2S
+	select SND_SOC_WM8731
+	help
+	  Say Y if you want to add support for SoC audio on Endrelia
+          ETI-B1 board.
+
+endmenu

sound/soc/at91/Makefile

+# AT91 Platform Support
+snd-soc-at91-objs := at91rm9200-pcm.o
+snd-soc-at91-i2s-objs := at91rm9200-i2s.o
+
+obj-$(CONFIG_SND_AT91_SOC) += snd-soc-at91.o
+obj-$(CONFIG_SND_AT91_SOC_I2S) += snd-soc-at91-i2s.o
+
+# AT91 Machine Support
+snd-soc-eti-b1-wm8731-objs := eti_b1_wm8731.o
+
+obj-$(CONFIG_SND_AT91_SOC_ETI_B1_WM8731) += snd-soc-eti-b1-wm8731.o