ASoC: samsung: dmaengine: Allow to specify custom DMA device

The additional function argument will allow to select proper DMA device
for requesting DMA channel for the secondary CPU DAI.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/samsung/dma.h

@@ -17,5 +17,6 @@
  * otherwise actual DMA channel names must be passed to this function.
  */
 int samsung_asoc_dma_platform_register(struct device *dev, dma_filter_fn filter,
-				       const char *tx, const char *rx);
+				       const char *tx, const char *rx,
+				       struct device *dma_dev);
 #endif /* _SAMSUNG_DMA_H */

sound/soc/samsung/dmaengine.c

@@ -25,7 +25,8 @@
 #include "dma.h"
 
 int samsung_asoc_dma_platform_register(struct device *dev, dma_filter_fn filter,
-				       const char *tx, const char *rx)
+				       const char *tx, const char *rx,
+				       struct device *dma_dev)
 {
 	unsigned int flags = SND_DMAENGINE_PCM_FLAG_COMPAT;
 	struct snd_dmaengine_pcm_config *pcm_conf;
@@ -36,6 +37,7 @@ int samsung_asoc_dma_platform_register(struct device *dev, dma_filter_fn filter,
 
 	pcm_conf->prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
 	pcm_conf->compat_filter_fn = filter;
+	pcm_conf->dma_dev = dma_dev;
 
 	if (dev->of_node) {
 		pcm_conf->chan_names[SNDRV_PCM_STREAM_PLAYBACK] = tx;

sound/soc/samsung/i2s.c

@@ -1345,7 +1345,7 @@ static int samsung_i2s_probe(struct platform_device *pdev)
 		pri_dai->i2s_dai_drv.playback.channels_max = 6;
 
 	ret = samsung_asoc_dma_platform_register(&pdev->dev, pri_dai->filter,
-						 NULL, NULL);
+						 NULL, NULL, NULL);
 	if (ret < 0)
 		goto err_disable_clk;
 
@@ -1382,7 +1382,7 @@ static int samsung_i2s_probe(struct platform_device *pdev)
 		pri_dai->sec_dai = sec_dai;
 
 		ret = samsung_asoc_dma_platform_register(&pdev->dev,
-					sec_dai->filter, "tx-sec", NULL);
+					sec_dai->filter, "tx-sec", NULL, NULL);
 		if (ret < 0)
 			goto err_disable_clk;
 

sound/soc/samsung/pcm.c

@@ -553,7 +553,7 @@ static int s3c_pcm_dev_probe(struct platform_device *pdev)
 	pcm->dma_playback = &s3c_pcm_stereo_out[pdev->id];
 
 	ret = samsung_asoc_dma_platform_register(&pdev->dev, filter,
-						 NULL, NULL);
+						 NULL, NULL, NULL);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to get register DMA: %d\n", ret);
 		goto err_dis_pclk;

sound/soc/samsung/s3c2412-i2s.c

@@ -177,7 +177,7 @@ static int s3c2412_iis_dev_probe(struct platform_device *pdev)
 
 	ret = samsung_asoc_dma_platform_register(&pdev->dev,
 						 pdata->dma_filter,
-						 NULL, NULL);
+						 NULL, NULL, NULL);
 	if (ret) {
 		pr_err("failed to register the DMA: %d\n", ret);
 		return ret;

sound/soc/samsung/s3c24xx-i2s.c

@@ -446,7 +446,7 @@ static int s3c24xx_iis_dev_probe(struct platform_device *pdev)
 	s3c24xx_i2s_pcm_stereo_in.addr = res->start + S3C2410_IISFIFO;
 
 	ret = samsung_asoc_dma_platform_register(&pdev->dev, NULL,
-						 NULL, NULL);
+						 NULL, NULL, NULL);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to register the DMA: %d\n", ret);
 		return ret;

sound/soc/samsung/spdif.c

@@ -430,7 +430,7 @@ static int spdif_probe(struct platform_device *pdev)
 	spdif->dma_playback = &spdif_stereo_out;
 
 	ret = samsung_asoc_dma_platform_register(&pdev->dev, filter,
-						 NULL, NULL);
+						 NULL, NULL, NULL);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register DMA: %d\n", ret);
 		goto err4;