ASoC: atmel-pcm: dma support based on pcm dmaengine

Specify overrun bit in interrupt mask
Add dmaengine specific routines

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
[voice.shen@atmel.com: adapt to soc dmaengine framework]
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/sound/soc/atmel/atmel-pcm.h b/sound/soc/atmel/atmel-pcm.h
index 6bd63b0e95e2..bb45d20e7250 100644
--- a/sound/soc/atmel/atmel-pcm.h
+++ b/sound/soc/atmel/atmel-pcm.h
@@ -52,6 +52,7 @@ struct atmel_pdc_regs {
 struct atmel_ssc_mask {
         u32     ssc_enable;             /* SSC recv/trans enable */
         u32     ssc_disable;            /* SSC recv/trans disable */
+        u32     ssc_error;              /* SSC error conditions */
         u32     ssc_endx;               /* SSC ENDTX or ENDRX */
         u32     ssc_endbuf;             /* SSC TXBUFE or RXBUFF */
         u32     pdc_enable;             /* PDC recv/trans enable */
@@ -100,4 +101,17 @@ static inline void atmel_pcm_pdc_platform_unregister(struct device *dev)
 }
 #endif
 
+#ifdef CONFIG_SND_ATMEL_SOC_DMA
+int atmel_pcm_dma_platform_register(struct device *dev);
+void atmel_pcm_dma_platform_unregister(struct device *dev);
+#else
+static inline int atmel_pcm_dma_platform_register(struct device *dev)
+{
+        return 0;
+}
+static inline void atmel_pcm_dma_platform_unregister(struct device *dev)
+{
+}
+#endif
+
 #endif /* _ATMEL_PCM_H */