[RFC 1/3] ASoC: dmaengine: Don't use runtime private data for dmaengine data

[Liam Girdwood]

Use a dedicated member to store dmaengine data so that drivers can
use private data for their own purposes.

Signed-off-by: Liam Girdwood <lrg at ti.com>
Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
---
 include/sound/pcm.h           |    2 ++
 sound/soc/soc-dmaengine-pcm.c |    2 +-
 2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index cdca2ab..f9e4909 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -269,6 +269,7 @@ struct snd_pcm_hw_constraint_list {
 };
 
 struct snd_pcm_hwptr_log;
+struct dmaengine_pcm_runtime_data;
 
 struct snd_pcm_runtime {
 	/* -- Status -- */
@@ -345,6 +346,7 @@ struct snd_pcm_runtime {
 	unsigned char *dma_area;	/* DMA area */
 	dma_addr_t dma_addr;		/* physical bus address (not accessible from main CPU) */
 	size_t dma_bytes;		/* size of DMA area */
+	struct dmaengine_pcm_runtime_data *dmaengine_data;
 
 	struct snd_dma_buffer *dma_buffer_p;	/* allocated buffer */
 
diff --git a/sound/soc/soc-dmaengine-pcm.c b/sound/soc/soc-dmaengine-pcm.c
index 5df529e..27fa5ad 100644
--- a/sound/soc/soc-dmaengine-pcm.c
+++ b/sound/soc/soc-dmaengine-pcm.c
@@ -40,7 +40,7 @@ struct dmaengine_pcm_runtime_data {
 static inline struct dmaengine_pcm_runtime_data *substream_to_prtd(
 	const struct snd_pcm_substream *substream)
 {
-	return substream->runtime->private_data;
+	return substream->runtime->dmaengine_data;
 }
 
 /**
-- 
1.7.4.4