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@@ -94,6 +94,7 @@
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*
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*/
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#include <linux/pm_runtime.h>
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+#include <linux/shdma-base.h>
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#include "rsnd.h"
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#define RSND_RATES SNDRV_PCM_RATE_8000_96000
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@@ -209,13 +210,6 @@ int rsnd_dma_available(struct rsnd_dma *dma)
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return !!dma->chan;
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}
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-static bool rsnd_dma_filter(struct dma_chan *chan, void *param)
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-{
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- chan->private = param;
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-
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- return true;
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-}
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-
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int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
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int is_play, int id,
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int (*inquiry)(struct rsnd_dma *dma,
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@@ -223,7 +217,9 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
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int (*complete)(struct rsnd_dma *dma))
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{
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struct device *dev = rsnd_priv_to_dev(priv);
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+ struct dma_slave_config cfg;
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dma_cap_mask_t mask;
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+ int ret;
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if (dma->chan) {
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dev_err(dev, "it already has dma channel\n");
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@@ -233,15 +229,23 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
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dma_cap_zero(mask);
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dma_cap_set(DMA_SLAVE, mask);
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- dma->slave.shdma_slave.slave_id = id;
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-
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- dma->chan = dma_request_channel(mask, rsnd_dma_filter,
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- &dma->slave.shdma_slave);
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+ dma->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
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+ (void *)id, dev,
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+ is_play ? "tx" : "rx");
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if (!dma->chan) {
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dev_err(dev, "can't get dma channel\n");
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return -EIO;
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}
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+ cfg.slave_id = id;
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+ cfg.dst_addr = 0; /* use default addr when playback */
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+ cfg.src_addr = 0; /* use default addr when capture */
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+ cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
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+
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+ ret = dmaengine_slave_config(dma->chan, &cfg);
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+ if (ret < 0)
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+ goto rsnd_dma_init_err;
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+
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dma->dir = is_play ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
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dma->priv = priv;
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dma->inquiry = inquiry;
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@@ -249,6 +253,11 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
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INIT_WORK(&dma->work, rsnd_dma_do_work);
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return 0;
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+
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+rsnd_dma_init_err:
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+ rsnd_dma_quit(priv, dma);
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+
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+ return ret;
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}
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void rsnd_dma_quit(struct rsnd_priv *priv,
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