ASoC: imx-pcm: Embed the imx_dma_data struct in the dma_params struct

Currently the imx_dma_data struct, which gets passed to the dmaengine driver, is
allocated and constructed in the pcm driver from the data stored in the
dma_params struct. The dma_params struct gets passed to the pcm driver from the
dai driver. Instead of going this route of indirection embed the dma_data struct
directly into the dma_params struct and let the dai driver fill it in. This
allows us to simplify the imx-pcm-dma driver quite a bit, since it doesn't have
care about memory managing the imx_dma_data struct anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 15 insertions, 2 deletions

diff --git a/sound/soc/fsl/imx-pcm.h b/sound/soc/fsl/imx-pcm.h
index 5ae13a13a353..16eaf5a09f53 100644
--- a/sound/soc/fsl/imx-pcm.h
+++ b/sound/soc/fsl/imx-pcm.h
@@ -13,18 +13,31 @@
 #ifndef _IMX_PCM_H
 #define _IMX_PCM_H
 
+#include <linux/platform_data/dma-imx.h>
+
 /*
  * Do not change this as the FIQ handler depends on this size
  */
 #define IMX_SSI_DMABUF_SIZE     (64 * 1024)
 
 struct imx_pcm_dma_params {
-        int dma;
         unsigned long dma_addr;
         int burstsize;
-        bool shared_peripheral; /* The peripheral is on SPBA bus */
+        struct imx_dma_data dma_data;
 };
 
+static inline void
+imx_pcm_dma_params_init_data(struct imx_pcm_dma_params *params,
+        int dma, bool shared)
+{
+        params->dma_data.dma_request = dma;
+        params->dma_data.priority = DMA_PRIO_HIGH;
+        if (shared)
+                params->dma_data.peripheral_type = IMX_DMATYPE_SSI_SP;
+        else
+                params->dma_data.peripheral_type = IMX_DMATYPE_SSI;
+}
+
 int snd_imx_pcm_mmap(struct snd_pcm_substream *substream,
                      struct vm_area_struct *vma);
 int imx_pcm_new(struct snd_soc_pcm_runtime *rtd);