ASoC: atmel-pcm: split into two file

This patch is split original atmel-pcm.c into new atmel-pcm.c and
atmel-pcm-pdc.c two files. The new atmel-pcm.c is the share routine
while will be used for pdc or dma transfer.

Using SND_ATMEL_SOC_PDC to select using PDC for audio transfer

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig
index 397ec7526a5a..6051993eca91 100644
--- a/sound/soc/atmel/Kconfig
+++ b/sound/soc/atmel/Kconfig
@@ -6,6 +6,10 @@ config SND_ATMEL_SOC
           the ATMEL SSC interface. You will also need
           to select the audio interfaces to support below.
 
+config SND_ATMEL_SOC_PDC
+        tristate
+        depends on SND_ATMEL_SOC
+
 config SND_ATMEL_SOC_SSC
         tristate
         depends on SND_ATMEL_SOC
@@ -17,6 +21,7 @@ config SND_ATMEL_SOC_SSC
 config SND_AT91_SOC_SAM9G20_WM8731
         tristate "SoC Audio support for WM8731-based At91sam9g20 evaluation board"
         depends on ATMEL_SSC && SND_ATMEL_SOC && AT91_PROGRAMMABLE_CLOCKS
+        select SND_ATMEL_SOC_PDC
         select SND_ATMEL_SOC_SSC
         select SND_SOC_WM8731
         help