ASoC: mxs: move to use generic DMA helper

With mxs-dma converted to generic DMA bindings, let's move mxs-pcm to
use it by removing flages SND_DMAENGINE_PCM_FLAG_NO_DT and
SND_DMAENGINE_PCM_FLAG_COMPAT.  As the result, those mxs custom dma
params code can be removed now.

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

4 files changed, 1 insertions, 54 deletions

diff --git a/sound/soc/mxs/mxs-pcm.c b/sound/soc/mxs/mxs-pcm.c
index b41fffc056fb..b16abbbf7764 100644
--- a/sound/soc/mxs/mxs-pcm.c
+++ b/sound/soc/mxs/mxs-pcm.c
@@ -49,24 +49,8 @@ static const struct snd_pcm_hardware snd_mxs_hardware = {
         .fifo_size              = 32,
 };
 
-static bool filter(struct dma_chan *chan, void *param)
-{
-        struct mxs_pcm_dma_params *dma_params = param;
-
-        if (!mxs_dma_is_apbx(chan))
-                return false;
-
-        if (chan->chan_id != dma_params->chan_num)
-                return false;
-
-        chan->private = &dma_params->dma_data;
-
-        return true;
-}
-
 static const struct snd_dmaengine_pcm_config mxs_dmaengine_pcm_config = {
         .pcm_hardware = &snd_mxs_hardware,
-        .compat_filter_fn = filter,
         .prealloc_buffer_size = 64 * 1024,
 };
 
@@ -74,8 +58,6 @@ int mxs_pcm_platform_register(struct device *dev)
 {
         return snd_dmaengine_pcm_register(dev, &mxs_dmaengine_pcm_config,
                 SND_DMAENGINE_PCM_FLAG_NO_RESIDUE |
-                SND_DMAENGINE_PCM_FLAG_NO_DT |
-                SND_DMAENGINE_PCM_FLAG_COMPAT |
                 SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX);
 }
 EXPORT_SYMBOL_GPL(mxs_pcm_platform_register);
diff --git a/sound/soc/mxs/mxs-pcm.h b/sound/soc/mxs/mxs-pcm.h
index 3aa918f9ed3e..bc685b67cac7 100644
--- a/sound/soc/mxs/mxs-pcm.h
+++ b/sound/soc/mxs/mxs-pcm.h
@@ -19,13 +19,6 @@
 #ifndef _MXS_PCM_H
 #define _MXS_PCM_H
 
-#include <linux/fsl/mxs-dma.h>
-
-struct mxs_pcm_dma_params {
-        struct mxs_dma_data dma_data;
-        int chan_num;
-};
-
 int mxs_pcm_platform_register(struct device *dev);
 void mxs_pcm_platform_unregister(struct device *dev);
 
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 71a972f5af97..49d870034bc3 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -26,7 +26,6 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/time.h>
-#include <linux/fsl/mxs-dma.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -604,8 +603,6 @@ static int mxs_saif_dai_probe(struct snd_soc_dai *dai)
         struct mxs_saif *saif = dev_get_drvdata(dai->dev);
 
         snd_soc_dai_set_drvdata(dai, saif);
-        dai->playback_dma_data = &saif->dma_param;
-        dai->capture_dma_data = &saif->dma_param;
 
         return 0;
 }
@@ -664,7 +661,7 @@ static irqreturn_t mxs_saif_irq(int irq, void *dev_id)
 static int mxs_saif_probe(struct platform_device *pdev)
 {
         struct device_node *np = pdev->dev.of_node;
-        struct resource *iores, *dmares;
+        struct resource *iores;
         struct mxs_saif *saif;
         int ret = 0;
         struct device_node *master;
@@ -719,22 +716,6 @@ static int mxs_saif_probe(struct platform_device *pdev)
         if (IS_ERR(saif->base))
                 return PTR_ERR(saif->base);
 
-        dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
-        if (!dmares) {
-                /*
-                 * TODO: This is a temporary solution and should be changed
-                 * to use generic DMA binding later when the helplers get in.
-                 */
-                ret = of_property_read_u32(np, "fsl,saif-dma-channel",
-                                           &saif->dma_param.chan_num);
-                if (ret) {
-                        dev_err(&pdev->dev, "failed to get dma channel\n");
-                        return ret;
-                }
-        } else {
-                saif->dma_param.chan_num = dmares->start;
-        }
-
         saif->irq = platform_get_irq(pdev, 0);
         if (saif->irq < 0) {
                 ret = saif->irq;
@@ -751,14 +732,6 @@ static int mxs_saif_probe(struct platform_device *pdev)
                 return ret;
         }
 
-        saif->dma_param.dma_data.chan_irq = platform_get_irq(pdev, 1);
-        if (saif->dma_param.dma_data.chan_irq < 0) {
-                ret = saif->dma_param.dma_data.chan_irq;
-                dev_err(&pdev->dev, "failed to get dma irq resource: %d\n",
-                        ret);
-                return ret;
-        }
-
         platform_set_drvdata(pdev, saif);
 
         ret = snd_soc_register_component(&pdev->dev, &mxs_saif_component,
diff --git a/sound/soc/mxs/mxs-saif.h b/sound/soc/mxs/mxs-saif.h
index 3cb342e5bc90..53eaa4bf0e27 100644
--- a/sound/soc/mxs/mxs-saif.h
+++ b/sound/soc/mxs/mxs-saif.h
@@ -117,7 +117,6 @@ struct mxs_saif {
         unsigned int mclk_in_use;
         void __iomem *base;
         int irq;
-        struct mxs_pcm_dma_params dma_param;
         unsigned int id;
         unsigned int master_id;
         unsigned int cur_rate;