[alsa-devel] [PATCH 06/17] ASoC: spear: Setup dma data in DAI probe

[Lars-Peter Clausen]

This allows us to access the DAI DMA data when we create the PCM. We'll use
this when converting spear to generic DMA engine PCM driver.

Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>
---
 sound/soc/spear/spdif_in.c  | 12 ++++--------
 sound/soc/spear/spdif_out.c |  7 ++++---
 2 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/sound/soc/spear/spdif_in.c b/sound/soc/spear/spdif_in.c
index 14d57e8..82c8387 100644
--- a/sound/soc/spear/spdif_in.c
+++ b/sound/soc/spear/spdif_in.c
@@ -49,15 +49,12 @@ static void spdif_in_configure(struct spdif_in_dev *host)
 	writel(0xF, host->io_base + SPDIF_IN_IRQ_MASK);
 }
 
-static int spdif_in_startup(struct snd_pcm_substream *substream,
-		struct snd_soc_dai *cpu_dai)
+static int spdif_in_dai_probe(struct snd_soc_dai *dai)
 {
-	struct spdif_in_dev *host = snd_soc_dai_get_drvdata(cpu_dai);
+	struct spdif_in_dev *host = snd_soc_dai_get_drvdata(dai);
 
-	if (substream->stream != SNDRV_PCM_STREAM_CAPTURE)
-		return -EINVAL;
+	dai->capture_dma_data = &host->dma_params;
 
-	snd_soc_dai_set_dma_data(cpu_dai, substream, (void *)&host->dma_params);
 	return 0;
 }
 
@@ -70,7 +67,6 @@ static void spdif_in_shutdown(struct snd_pcm_substream *substream,
 		return;
 
 	writel(0x0, host->io_base + SPDIF_IN_IRQ_MASK);
-	snd_soc_dai_set_dma_data(dai, substream, NULL);
 }
 
 static void spdif_in_format(struct spdif_in_dev *host, u32 format)
@@ -151,13 +147,13 @@ static int spdif_in_trigger(struct snd_pcm_substream *substream, int cmd,
 }
 
 static struct snd_soc_dai_ops spdif_in_dai_ops = {
-	.startup	= spdif_in_startup,
 	.shutdown	= spdif_in_shutdown,
 	.trigger	= spdif_in_trigger,
 	.hw_params	= spdif_in_hw_params,
 };
 
 struct snd_soc_dai_driver spdif_in_dai = {
+	.probe = spdif_in_dai_probe,
 	.capture = {
 		.channels_min = 2,
 		.channels_max = 2,
diff --git a/sound/soc/spear/spdif_out.c b/sound/soc/spear/spdif_out.c
index 1e3c3dd..12b4f2f 100644
--- a/sound/soc/spear/spdif_out.c
+++ b/sound/soc/spear/spdif_out.c
@@ -62,8 +62,6 @@ static int spdif_out_startup(struct snd_pcm_substream *substream,
 	if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
 		return -EINVAL;
 
-	snd_soc_dai_set_dma_data(cpu_dai, substream, (void *)&host->dma_params);
-
 	ret = clk_enable(host->clk);
 	if (ret)
 		return ret;
@@ -84,7 +82,6 @@ static void spdif_out_shutdown(struct snd_pcm_substream *substream,
 
 	clk_disable(host->clk);
 	host->running = false;
-	snd_soc_dai_set_dma_data(dai, substream, NULL);
 }
 
 static void spdif_out_clock(struct spdif_out_dev *host, u32 core_freq,
@@ -245,6 +242,10 @@ static const struct snd_kcontrol_new spdif_out_controls[] = {
 
 int spdif_soc_dai_probe(struct snd_soc_dai *dai)
 {
+	struct spdif_out_dev *host = snd_soc_dai_get_drvdata(dai);
+
+	dai->playback_dma_data = &host->dma_params;
+
 	return snd_soc_add_dai_controls(dai, spdif_out_controls,
 				ARRAY_SIZE(spdif_out_controls));
 }
-- 
1.8.0