ASoC: imx-ssi: Set dma data early

Move the call to snd_soc_dai_set_dma_data from the hw_params callback to the
startup callback. This allows us to use the dma data in the pcm driver's open
callback.

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, 20 insertions, 8 deletions

diff --git a/sound/soc/imx/imx-ssi.c b/sound/soc/imx/imx-ssi.c
index 01d1f749cf02..dbf43f5f0aed 100644
--- a/sound/soc/imx/imx-ssi.c
+++ b/sound/soc/imx/imx-ssi.c
@@ -233,6 +233,23 @@ static int imx_ssi_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
         return 0;
 }
 
+static int imx_ssi_startup(struct snd_pcm_substream *substream,
+                           struct snd_soc_dai *cpu_dai)
+{
+        struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
+        struct imx_pcm_dma_params *dma_data;
+
+        /* Tx/Rx config */
+        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+                dma_data = &ssi->dma_params_tx;
+        else
+                dma_data = &ssi->dma_params_rx;
+
+        snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
+
+        return 0;
+}
+
 /*
  * Should only be called when port is inactive (i.e. SSIEN = 0),
  * although can be called multiple times by upper layers.
@@ -242,23 +259,17 @@ static int imx_ssi_hw_params(struct snd_pcm_substream *substream,
                              struct snd_soc_dai *cpu_dai)
 {
         struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
-        struct imx_pcm_dma_params *dma_data;
         u32 reg, sccr;
 
         /* Tx/Rx config */
-        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                 reg = SSI_STCCR;
-                dma_data = &ssi->dma_params_tx;
-        } else {
+        else
                 reg = SSI_SRCCR;
-                dma_data = &ssi->dma_params_rx;
-        }
 
         if (ssi->flags & IMX_SSI_SYN)
                 reg = SSI_STCCR;
 
-        snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
-
         sccr = readl(ssi->base + reg) & ~SSI_STCCR_WL_MASK;
 
         /* DAI data (word) size */
@@ -343,6 +354,7 @@ static int imx_ssi_trigger(struct snd_pcm_substream *substream, int cmd,
 }
 
 static const struct snd_soc_dai_ops imx_ssi_pcm_dai_ops = {
+        .startup        = imx_ssi_startup,
         .hw_params      = imx_ssi_hw_params,
         .set_fmt        = imx_ssi_set_dai_fmt,
         .set_clkdiv     = imx_ssi_set_dai_clkdiv,