zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/sound/spi/Kconfig b/ap/os/linux/linux-3.4.x/sound/spi/Kconfig
new file mode 100644
index 0000000..e6485be
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/sound/spi/Kconfig
@@ -0,0 +1,38 @@
+#SPI drivers
+
+menuconfig SND_SPI
+ bool "SPI sound devices"
+ depends on SPI
+ default y
+ help
+ Support for sound devices connected via the SPI bus.
+
+if SND_SPI
+
+config SND_AT73C213
+ tristate "Atmel AT73C213 DAC driver"
+ depends on ATMEL_SSC
+ select SND_PCM
+ help
+ Say Y here if you want to use the Atmel AT73C213 external DAC. This
+ DAC can be found on Atmel development boards.
+
+ This driver requires the Atmel SSC driver for sound sink, a
+ peripheral found on most AT91 and AVR32 microprocessors.
+
+ To compile this driver as a module, choose M here: the module will be
+ called snd-at73c213.
+
+config SND_AT73C213_TARGET_BITRATE
+ int "Target bitrate for AT73C213"
+ depends on SND_AT73C213
+ default "48000"
+ range 8000 50000
+ help
+ Sets the target bitrate for the bitrate calculator in the driver.
+ Limited by hardware to be between 8000 Hz and 50000 Hz.
+
+ Set to 48000 Hz by default.
+
+endif # SND_SPI
+