ASoC: fsl: assign dma peripheral type according to bus topology

The dma peripheral_type for SSI should be IMX_DMATYPE_SSI_SP if the SSI
is on SPBA bus.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 30ff605..4f76b5d 100644 (file)
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -746,6 +746,12 @@ static int __devinit fsl_ssi_probe(struct platform_device *pdev)
                }
                ssi_private->dma_params_tx.dma = dma_events[0];
                ssi_private->dma_params_rx.dma = dma_events[1];
+
+               ssi_private->dma_params_tx.shared_peripheral =
+                               of_device_is_compatible(of_get_parent(np),
+                                                       "fsl,spba-bus");
+               ssi_private->dma_params_rx.shared_peripheral =
+                               ssi_private->dma_params_tx.shared_peripheral;
        }
 
        /* Initialize the the device_attribute structure */

diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c
index 6b818de..f3c0a5e 100644 (file)
--- a/sound/soc/fsl/imx-pcm-dma.c
+++ b/sound/soc/fsl/imx-pcm-dma.c
@@ -109,7 +109,8 @@ static int snd_imx_open(struct snd_pcm_substream *substream)
        dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
 
        dma_data = kzalloc(sizeof(*dma_data), GFP_KERNEL);
-       dma_data->peripheral_type = IMX_DMATYPE_SSI;
+       dma_data->peripheral_type = dma_params->shared_peripheral ?
+                                       IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI;
        dma_data->priority = DMA_PRIO_HIGH;
        dma_data->dma_request = dma_params->dma;
 

diff --git a/sound/soc/fsl/imx-pcm.h b/sound/soc/fsl/imx-pcm.h
index b5f5c3a..83c0ed7 100644 (file)
--- a/sound/soc/fsl/imx-pcm.h
+++ b/sound/soc/fsl/imx-pcm.h
@@ -22,6 +22,7 @@ struct imx_pcm_dma_params {
        int dma;
        unsigned long dma_addr;
        int burstsize;
+       bool shared_peripheral; /* The peripheral is on SPBA bus */
 };
 
 int snd_imx_pcm_mmap(struct snd_pcm_substream *substream,