ASoC: Rename the PSC functions to DMA

Rename the functions in the mpc5200 DMA file from i2s based names to dma
ones to reflect the file they are in.

Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

3 files changed, 190 insertions, 190 deletions

diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c
index 4bae8d6e1a6a..685039213f05 100644
--- a/sound/soc/fsl/mpc5200_dma.c
+++ b/sound/soc/fsl/mpc5200_dma.c
@@ -34,21 +34,21 @@ MODULE_LICENSE("GPL");
 /*
  * Interrupt handlers
  */
-static irqreturn_t psc_i2s_status_irq(int irq, void *_psc_i2s)
+static irqreturn_t psc_dma_status_irq(int irq, void *_psc_dma)
 {
-        struct psc_i2s *psc_i2s = _psc_i2s;
-        struct mpc52xx_psc __iomem *regs = psc_i2s->psc_regs;
+        struct psc_dma *psc_dma = _psc_dma;
+        struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
         u16 isr;
 
         isr = in_be16(&regs->mpc52xx_psc_isr);
 
         /* Playback underrun error */
-        if (psc_i2s->playback.active && (isr & MPC52xx_PSC_IMR_TXEMP))
-                psc_i2s->stats.underrun_count++;
+        if (psc_dma->playback.active && (isr & MPC52xx_PSC_IMR_TXEMP))
+                psc_dma->stats.underrun_count++;
 
         /* Capture overrun error */
-        if (psc_i2s->capture.active && (isr & MPC52xx_PSC_IMR_ORERR))
-                psc_i2s->stats.overrun_count++;
+        if (psc_dma->capture.active && (isr & MPC52xx_PSC_IMR_ORERR))
+                psc_dma->stats.overrun_count++;
 
         out_8(&regs->command, 4 << 4);  /* reset the error status */
 
@@ -56,7 +56,7 @@ static irqreturn_t psc_i2s_status_irq(int irq, void *_psc_i2s)
 }
 
 /**
- * psc_i2s_bcom_enqueue_next_buffer - Enqueue another audio buffer
+ * psc_dma_bcom_enqueue_next_buffer - Enqueue another audio buffer
  * @s: pointer to stream private data structure
  *
  * Enqueues another audio period buffer into the bestcomm queue.
@@ -65,7 +65,7 @@ static irqreturn_t psc_i2s_status_irq(int irq, void *_psc_i2s)
  * the queue.  Otherwise the enqueue will fail and the audio ring buffer
  * will get out of sync
  */
-static void psc_i2s_bcom_enqueue_next_buffer(struct psc_i2s_stream *s)
+static void psc_dma_bcom_enqueue_next_buffer(struct psc_dma_stream *s)
 {
         struct bcom_bd *bd;
 
@@ -82,9 +82,9 @@ static void psc_i2s_bcom_enqueue_next_buffer(struct psc_i2s_stream *s)
 }
 
 /* Bestcomm DMA irq handler */
-static irqreturn_t psc_i2s_bcom_irq(int irq, void *_psc_i2s_stream)
+static irqreturn_t psc_dma_bcom_irq(int irq, void *_psc_dma_stream)
 {
-        struct psc_i2s_stream *s = _psc_i2s_stream;
+        struct psc_dma_stream *s = _psc_dma_stream;
 
         /* For each finished period, dequeue the completed period buffer
          * and enqueue a new one in it's place. */
@@ -93,7 +93,7 @@ static irqreturn_t psc_i2s_bcom_irq(int irq, void *_psc_i2s_stream)
                 s->period_current_pt += s->period_bytes;
                 if (s->period_current_pt >= s->period_end)
                         s->period_current_pt = s->period_start;
-                psc_i2s_bcom_enqueue_next_buffer(s);
+                psc_dma_bcom_enqueue_next_buffer(s);
                 bcom_enable(s->bcom_task);
         }
 
@@ -106,39 +106,39 @@ static irqreturn_t psc_i2s_bcom_irq(int irq, void *_psc_i2s_stream)
 }
 
 /**
- * psc_i2s_startup: create a new substream
+ * psc_dma_startup: create a new substream
  *
  * This is the first function called when a stream is opened.
  *
  * If this is the first stream open, then grab the IRQ and program most of
  * the PSC registers.
  */
-int psc_i2s_startup(struct snd_pcm_substream *substream,
+int psc_dma_startup(struct snd_pcm_substream *substream,
                            struct snd_soc_dai *dai)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
+        struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
         int rc;
 
-        dev_dbg(psc_i2s->dev, "psc_i2s_startup(substream=%p)\n", substream);
+        dev_dbg(psc_dma->dev, "psc_dma_startup(substream=%p)\n", substream);
 
-        if (!psc_i2s->playback.active &&
-            !psc_i2s->capture.active) {
+        if (!psc_dma->playback.active &&
+            !psc_dma->capture.active) {
                 /* Setup the IRQs */
-                rc = request_irq(psc_i2s->irq, &psc_i2s_status_irq, IRQF_SHARED,
-                                 "psc-i2s-status", psc_i2s);
-                rc |= request_irq(psc_i2s->capture.irq,
-                                  &psc_i2s_bcom_irq, IRQF_SHARED,
-                                  "psc-i2s-capture", &psc_i2s->capture);
-                rc |= request_irq(psc_i2s->playback.irq,
-                                  &psc_i2s_bcom_irq, IRQF_SHARED,
-                                  "psc-i2s-playback", &psc_i2s->playback);
+                rc = request_irq(psc_dma->irq, &psc_dma_status_irq, IRQF_SHARED,
+                                 "psc-dma-status", psc_dma);
+                rc |= request_irq(psc_dma->capture.irq,
+                                  &psc_dma_bcom_irq, IRQF_SHARED,
+                                  "psc-dma-capture", &psc_dma->capture);
+                rc |= request_irq(psc_dma->playback.irq,
+                                  &psc_dma_bcom_irq, IRQF_SHARED,
+                                  "psc-dma-playback", &psc_dma->playback);
                 if (rc) {
-                        free_irq(psc_i2s->irq, psc_i2s);
-                        free_irq(psc_i2s->capture.irq,
-                                 &psc_i2s->capture);
-                        free_irq(psc_i2s->playback.irq,
-                                 &psc_i2s->playback);
+                        free_irq(psc_dma->irq, psc_dma);
+                        free_irq(psc_dma->capture.irq,
+                                 &psc_dma->capture);
+                        free_irq(psc_dma->playback.irq,
+                                 &psc_dma->playback);
                         return -ENODEV;
                 }
         }
@@ -146,7 +146,7 @@ int psc_i2s_startup(struct snd_pcm_substream *substream,
         return 0;
 }
 
-int psc_i2s_hw_free(struct snd_pcm_substream *substream,
+int psc_dma_hw_free(struct snd_pcm_substream *substream,
                            struct snd_soc_dai *dai)
 {
         snd_pcm_set_runtime_buffer(substream, NULL);
@@ -154,29 +154,29 @@ int psc_i2s_hw_free(struct snd_pcm_substream *substream,
 }
 
 /**
- * psc_i2s_trigger: start and stop the DMA transfer.
+ * psc_dma_trigger: start and stop the DMA transfer.
  *
  * This function is called by ALSA to start, stop, pause, and resume the DMA
  * transfer of data.
  */
-int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+int psc_dma_trigger(struct snd_pcm_substream *substream, int cmd,
                            struct snd_soc_dai *dai)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
+        struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
         struct snd_pcm_runtime *runtime = substream->runtime;
-        struct psc_i2s_stream *s;
-        struct mpc52xx_psc __iomem *regs = psc_i2s->psc_regs;
+        struct psc_dma_stream *s;
+        struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
         u16 imr;
         u8 psc_cmd;
         unsigned long flags;
 
         if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
-                s = &psc_i2s->capture;
+                s = &psc_dma->capture;
         else
-                s = &psc_i2s->playback;
+                s = &psc_dma->playback;
 
-        dev_dbg(psc_i2s->dev, "psc_i2s_trigger(substream=%p, cmd=%i)"
+        dev_dbg(psc_dma->dev, "psc_dma_trigger(substream=%p, cmd=%i)"
                 " stream_id=%i\n",
                 substream, cmd, substream->pstr->stream);
 
@@ -207,14 +207,14 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
                 else
                         bcom_gen_bd_tx_reset(s->bcom_task);
                 while (!bcom_queue_full(s->bcom_task))
-                        psc_i2s_bcom_enqueue_next_buffer(s);
+                        psc_dma_bcom_enqueue_next_buffer(s);
                 bcom_enable(s->bcom_task);
 
-                /* Due to errata in the i2s mode; need to line up enabling
+                /* Due to errata in the dma mode; need to line up enabling
                  * the transmitter with a transition on the frame sync
                  * line */
 
-                spin_lock_irqsave(&psc_i2s->lock, flags);
+                spin_lock_irqsave(&psc_dma->lock, flags);
                 /* first make sure it is low */
                 while ((in_8(&regs->ipcr_acr.ipcr) & 0x80) != 0)
                         ;
@@ -228,7 +228,7 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
                 if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK)
                         psc_cmd |= MPC52xx_PSC_TX_ENABLE;
                 out_8(&regs->command, psc_cmd);
-                spin_unlock_irqrestore(&psc_i2s->lock, flags);
+                spin_unlock_irqrestore(&psc_dma->lock, flags);
 
                 break;
 
@@ -236,7 +236,7 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
                 /* Turn off the PSC */
                 s->active = 0;
                 if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) {
-                        if (!psc_i2s->playback.active) {
+                        if (!psc_dma->playback.active) {
                                 out_8(&regs->command, 2 << 4);  /* reset rx */
                                 out_8(&regs->command, 3 << 4);  /* reset tx */
                                 out_8(&regs->command, 4 << 4);  /* reset err */
@@ -244,7 +244,7 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
                 } else {
                         out_8(&regs->command, 3 << 4);  /* reset tx */
                         out_8(&regs->command, 4 << 4);  /* reset err */
-                        if (!psc_i2s->capture.active)
+                        if (!psc_dma->capture.active)
                                 out_8(&regs->command, 2 << 4);  /* reset rx */
                 }
 
@@ -255,15 +255,15 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
                 break;
 
         default:
-                dev_dbg(psc_i2s->dev, "invalid command\n");
+                dev_dbg(psc_dma->dev, "invalid command\n");
                 return -EINVAL;
         }
 
         /* Update interrupt enable settings */
         imr = 0;
-        if (psc_i2s->playback.active)
+        if (psc_dma->playback.active)
                 imr |= MPC52xx_PSC_IMR_TXEMP;
-        if (psc_i2s->capture.active)
+        if (psc_dma->capture.active)
                 imr |= MPC52xx_PSC_IMR_ORERR;
         out_be16(&regs->isr_imr.imr, imr);
 
@@ -271,36 +271,36 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
 }
 
 /**
- * psc_i2s_shutdown: shutdown the data transfer on a stream
+ * psc_dma_shutdown: shutdown the data transfer on a stream
  *
  * Shutdown the PSC if there are no other substreams open.
  */
-void psc_i2s_shutdown(struct snd_pcm_substream *substream,
+void psc_dma_shutdown(struct snd_pcm_substream *substream,
                              struct snd_soc_dai *dai)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
+        struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
 
-        dev_dbg(psc_i2s->dev, "psc_i2s_shutdown(substream=%p)\n", substream);
+        dev_dbg(psc_dma->dev, "psc_dma_shutdown(substream=%p)\n", substream);
 
         /*
          * If this is the last active substream, disable the PSC and release
          * the IRQ.
          */
-        if (!psc_i2s->playback.active &&
-            !psc_i2s->capture.active) {
+        if (!psc_dma->playback.active &&
+            !psc_dma->capture.active) {
 
                 /* Disable all interrupts and reset the PSC */
-                out_be16(&psc_i2s->psc_regs->isr_imr.imr, 0);
-                out_8(&psc_i2s->psc_regs->command, 3 << 4); /* reset tx */
-                out_8(&psc_i2s->psc_regs->command, 2 << 4); /* reset rx */
-                out_8(&psc_i2s->psc_regs->command, 1 << 4); /* reset mode */
-                out_8(&psc_i2s->psc_regs->command, 4 << 4); /* reset error */
+                out_be16(&psc_dma->psc_regs->isr_imr.imr, 0);
+                out_8(&psc_dma->psc_regs->command, 3 << 4); /* reset tx */
+                out_8(&psc_dma->psc_regs->command, 2 << 4); /* reset rx */
+                out_8(&psc_dma->psc_regs->command, 1 << 4); /* reset mode */
+                out_8(&psc_dma->psc_regs->command, 4 << 4); /* reset error */
 
                 /* Release irqs */
-                free_irq(psc_i2s->irq, psc_i2s);
-                free_irq(psc_i2s->capture.irq, &psc_i2s->capture);
-                free_irq(psc_i2s->playback.irq, &psc_i2s->playback);
+                free_irq(psc_dma->irq, psc_dma);
+                free_irq(psc_dma->capture.irq, &psc_dma->capture);
+                free_irq(psc_dma->playback.irq, &psc_dma->playback);
         }
 }
 
@@ -312,7 +312,7 @@ void psc_i2s_shutdown(struct snd_pcm_substream *substream,
  * interaction with the attached codec
  */
 
-static const struct snd_pcm_hardware psc_i2s_pcm_hardware = {
+static const struct snd_pcm_hardware psc_dma_pcm_hardware = {
         .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
                 SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
                 SNDRV_PCM_INFO_BATCH,
@@ -330,80 +330,80 @@ static const struct snd_pcm_hardware psc_i2s_pcm_hardware = {
         .fifo_size              = 0,
 };
 
-static int psc_i2s_pcm_open(struct snd_pcm_substream *substream)
+static int psc_dma_pcm_open(struct snd_pcm_substream *substream)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
-        struct psc_i2s_stream *s;
+        struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
+        struct psc_dma_stream *s;
 
-        dev_dbg(psc_i2s->dev, "psc_i2s_pcm_open(substream=%p)\n", substream);
+        dev_dbg(psc_dma->dev, "psc_dma_pcm_open(substream=%p)\n", substream);
 
         if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
-                s = &psc_i2s->capture;
+                s = &psc_dma->capture;
         else
-                s = &psc_i2s->playback;
+                s = &psc_dma->playback;
 
-        snd_soc_set_runtime_hwparams(substream, &psc_i2s_pcm_hardware);
+        snd_soc_set_runtime_hwparams(substream, &psc_dma_pcm_hardware);
 
         s->stream = substream;
         return 0;
 }
 
-static int psc_i2s_pcm_close(struct snd_pcm_substream *substream)
+static int psc_dma_pcm_close(struct snd_pcm_substream *substream)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
-        struct psc_i2s_stream *s;
+        struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
+        struct psc_dma_stream *s;
 
-        dev_dbg(psc_i2s->dev, "psc_i2s_pcm_close(substream=%p)\n", substream);
+        dev_dbg(psc_dma->dev, "psc_dma_pcm_close(substream=%p)\n", substream);
 
         if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
-                s = &psc_i2s->capture;
+                s = &psc_dma->capture;
         else
-                s = &psc_i2s->playback;
+                s = &psc_dma->playback;
 
         s->stream = NULL;
         return 0;
 }
 
 static snd_pcm_uframes_t
-psc_i2s_pcm_pointer(struct snd_pcm_substream *substream)
+psc_dma_pcm_pointer(struct snd_pcm_substream *substream)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
-        struct psc_i2s_stream *s;
+        struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
+        struct psc_dma_stream *s;
         dma_addr_t count;
 
         if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
-                s = &psc_i2s->capture;
+                s = &psc_dma->capture;
         else
-                s = &psc_i2s->playback;
+                s = &psc_dma->playback;
 
         count = s->period_current_pt - s->period_start;
 
         return bytes_to_frames(substream->runtime, count);
 }
 
-static struct snd_pcm_ops psc_i2s_pcm_ops = {
-        .open           = psc_i2s_pcm_open,
-        .close          = psc_i2s_pcm_close,
+static struct snd_pcm_ops psc_dma_pcm_ops = {
+        .open           = psc_dma_pcm_open,
+        .close          = psc_dma_pcm_close,
         .ioctl          = snd_pcm_lib_ioctl,
-        .pointer        = psc_i2s_pcm_pointer,
+        .pointer        = psc_dma_pcm_pointer,
 };
 
-static u64 psc_i2s_pcm_dmamask = 0xffffffff;
-static int psc_i2s_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
+static u64 psc_dma_pcm_dmamask = 0xffffffff;
+static int psc_dma_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
                            struct snd_pcm *pcm)
 {
         struct snd_soc_pcm_runtime *rtd = pcm->private_data;
-        size_t size = psc_i2s_pcm_hardware.buffer_bytes_max;
+        size_t size = psc_dma_pcm_hardware.buffer_bytes_max;
         int rc = 0;
 
-        dev_dbg(rtd->socdev->dev, "psc_i2s_pcm_new(card=%p, dai=%p, pcm=%p)\n",
+        dev_dbg(rtd->socdev->dev, "psc_dma_pcm_new(card=%p, dai=%p, pcm=%p)\n",
                 card, dai, pcm);
 
         if (!card->dev->dma_mask)
-                card->dev->dma_mask = &psc_i2s_pcm_dmamask;
+                card->dev->dma_mask = &psc_dma_pcm_dmamask;
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = 0xffffffff;
 
@@ -431,13 +431,13 @@ static int psc_i2s_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
         return -ENOMEM;
 }
 
-static void psc_i2s_pcm_free(struct snd_pcm *pcm)
+static void psc_dma_pcm_free(struct snd_pcm *pcm)
 {
         struct snd_soc_pcm_runtime *rtd = pcm->private_data;
         struct snd_pcm_substream *substream;
         int stream;
 
-        dev_dbg(rtd->socdev->dev, "psc_i2s_pcm_free(pcm=%p)\n", pcm);
+        dev_dbg(rtd->socdev->dev, "psc_dma_pcm_free(pcm=%p)\n", pcm);
 
         for (stream = 0; stream < 2; stream++) {
                 substream = pcm->streams[stream].substream;
@@ -449,10 +449,10 @@ static void psc_i2s_pcm_free(struct snd_pcm *pcm)
         }
 }
 
-struct snd_soc_platform psc_i2s_pcm_soc_platform = {
+struct snd_soc_platform psc_dma_pcm_soc_platform = {
         .name           = "mpc5200-psc-audio",
-        .pcm_ops        = &psc_i2s_pcm_ops,
-        .pcm_new        = &psc_i2s_pcm_new,
-        .pcm_free       = &psc_i2s_pcm_free,
+        .pcm_ops        = &psc_dma_pcm_ops,
+        .pcm_new        = &psc_dma_pcm_new,
+        .pcm_free       = &psc_dma_pcm_free,
 };
 
diff --git a/sound/soc/fsl/mpc5200_dma.h b/sound/soc/fsl/mpc5200_dma.h
index 9a19e8a70c5f..a33232c0c59e 100644
--- a/sound/soc/fsl/mpc5200_dma.h
+++ b/sound/soc/fsl/mpc5200_dma.h
@@ -6,9 +6,9 @@
 #define __SOUND_SOC_FSL_MPC5200_DMA_H__
 
 /**
- * psc_i2s_stream - Data specific to a single stream (playback or capture)
+ * psc_dma_stream - Data specific to a single stream (playback or capture)
  * @active:             flag indicating if the stream is active
- * @psc_i2s:            pointer back to parent psc_i2s data structure
+ * @psc_dma:            pointer back to parent psc_dma data structure
  * @bcom_task:          bestcomm task structure
  * @irq:                irq number for bestcomm task
  * @period_start:       physical address of start of DMA region
@@ -16,9 +16,9 @@
  * @period_next_pt:     physical address of next DMA buffer to enqueue
  * @period_bytes:       size of DMA period in bytes
  */
-struct psc_i2s_stream {
+struct psc_dma_stream {
         int active;
-        struct psc_i2s *psc_i2s;
+        struct psc_dma *psc_dma;
         struct bcom_task *bcom_task;
         int irq;
         struct snd_pcm_substream *stream;
@@ -30,7 +30,7 @@ struct psc_i2s_stream {
 };
 
 /**
- * psc_i2s - Private driver data
+ * psc_dma - Private driver data
  * @name: short name for this device ("PSC0", "PSC1", etc)
  * @psc_regs: pointer to the PSC's registers
  * @fifo_regs: pointer to the PSC's FIFO registers
@@ -42,7 +42,7 @@ struct psc_i2s_stream {
  * @playback: Playback stream context data
  * @capture: Capture stream context data
  */
-struct psc_i2s {
+struct psc_dma {
         char name[32];
         struct mpc52xx_psc __iomem *psc_regs;
         struct mpc52xx_psc_fifo __iomem *fifo_regs;
@@ -53,8 +53,8 @@ struct psc_i2s {
         u32 sicr;
 
         /* per-stream data */
-        struct psc_i2s_stream playback;
-        struct psc_i2s_stream capture;
+        struct psc_dma_stream playback;
+        struct psc_dma_stream capture;
 
         /* Statistics */
         struct {
@@ -64,18 +64,18 @@ struct psc_i2s {
 };
 
 
-int psc_i2s_startup(struct snd_pcm_substream *substream,
+int psc_dma_startup(struct snd_pcm_substream *substream,
                            struct snd_soc_dai *dai);
 
-int psc_i2s_hw_free(struct snd_pcm_substream *substream,
+int psc_dma_hw_free(struct snd_pcm_substream *substream,
                            struct snd_soc_dai *dai);
 
-void psc_i2s_shutdown(struct snd_pcm_substream *substream,
+void psc_dma_shutdown(struct snd_pcm_substream *substream,
                              struct snd_soc_dai *dai);
 
-int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+int psc_dma_trigger(struct snd_pcm_substream *substream, int cmd,
                            struct snd_soc_dai *dai);
 
-extern struct snd_soc_platform psc_i2s_pcm_soc_platform;
+extern struct snd_soc_platform psc_dma_pcm_soc_platform;
 
 #endif /* __SOUND_SOC_FSL_MPC5200_DMA_H__ */
diff --git a/sound/soc/fsl/mpc5200_psc_i2s.c b/sound/soc/fsl/mpc5200_psc_i2s.c
index 8974b53eec9f..12a7917b57b0 100644
--- a/sound/soc/fsl/mpc5200_psc_i2s.c
+++ b/sound/soc/fsl/mpc5200_psc_i2s.c
@@ -54,10 +54,10 @@ static int psc_i2s_hw_params(struct snd_pcm_substream *substream,
                                  struct snd_soc_dai *dai)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
+        struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
         u32 mode;
 
-        dev_dbg(psc_i2s->dev, "%s(substream=%p) p_size=%i p_bytes=%i"
+        dev_dbg(psc_dma->dev, "%s(substream=%p) p_size=%i p_bytes=%i"
                 " periods=%i buffer_size=%i  buffer_bytes=%i\n",
                 __func__, substream, params_period_size(params),
                 params_period_bytes(params), params_periods(params),
@@ -77,10 +77,10 @@ static int psc_i2s_hw_params(struct snd_pcm_substream *substream,
                 mode = MPC52xx_PSC_SICR_SIM_CODEC_32;
                 break;
         default:
-                dev_dbg(psc_i2s->dev, "invalid format\n");
+                dev_dbg(psc_dma->dev, "invalid format\n");
                 return -EINVAL;
         }
-        out_be32(&psc_i2s->psc_regs->sicr, psc_i2s->sicr | mode);
+        out_be32(&psc_dma->psc_regs->sicr, psc_dma->sicr | mode);
 
         snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
 
@@ -104,8 +104,8 @@ static int psc_i2s_hw_params(struct snd_pcm_substream *substream,
 static int psc_i2s_set_sysclk(struct snd_soc_dai *cpu_dai,
                               int clk_id, unsigned int freq, int dir)
 {
-        struct psc_i2s *psc_i2s = cpu_dai->private_data;
-        dev_dbg(psc_i2s->dev, "psc_i2s_set_sysclk(cpu_dai=%p, dir=%i)\n",
+        struct psc_dma *psc_dma = cpu_dai->private_data;
+        dev_dbg(psc_dma->dev, "psc_i2s_set_sysclk(cpu_dai=%p, dir=%i)\n",
                                 cpu_dai, dir);
         return (dir == SND_SOC_CLOCK_IN) ? 0 : -EINVAL;
 }
@@ -123,8 +123,8 @@ static int psc_i2s_set_sysclk(struct snd_soc_dai *cpu_dai,
  */
 static int psc_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int format)
 {
-        struct psc_i2s *psc_i2s = cpu_dai->private_data;
-        dev_dbg(psc_i2s->dev, "psc_i2s_set_fmt(cpu_dai=%p, format=%i)\n",
+        struct psc_dma *psc_dma = cpu_dai->private_data;
+        dev_dbg(psc_dma->dev, "psc_i2s_set_fmt(cpu_dai=%p, format=%i)\n",
                                 cpu_dai, format);
         return (format == SND_SOC_DAIFMT_I2S) ? 0 : -EINVAL;
 }
@@ -140,11 +140,11 @@ static int psc_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int format)
  * psc_i2s_dai_template: template CPU Digital Audio Interface
  */
 static struct snd_soc_dai_ops psc_i2s_dai_ops = {
-        .startup        = psc_i2s_startup,
+        .startup        = psc_dma_startup,
         .hw_params      = psc_i2s_hw_params,
-        .hw_free        = psc_i2s_hw_free,
-        .shutdown       = psc_i2s_shutdown,
-        .trigger        = psc_i2s_trigger,
+        .hw_free        = psc_dma_hw_free,
+        .shutdown       = psc_dma_shutdown,
+        .trigger        = psc_dma_trigger,
         .set_sysclk     = psc_i2s_set_sysclk,
         .set_fmt        = psc_i2s_set_fmt,
 };
@@ -172,24 +172,24 @@ static struct snd_soc_dai psc_i2s_dai_template = {
 static ssize_t psc_i2s_status_show(struct device *dev,
                            struct device_attribute *attr, char *buf)
 {
-        struct psc_i2s *psc_i2s = dev_get_drvdata(dev);
+        struct psc_dma *psc_dma = dev_get_drvdata(dev);
 
         return sprintf(buf, "status=%.4x sicr=%.8x rfnum=%i rfstat=0x%.4x "
                         "tfnum=%i tfstat=0x%.4x\n",
-                        in_be16(&psc_i2s->psc_regs->sr_csr.status),
-                        in_be32(&psc_i2s->psc_regs->sicr),
-                        in_be16(&psc_i2s->fifo_regs->rfnum) & 0x1ff,
-                        in_be16(&psc_i2s->fifo_regs->rfstat),
-                        in_be16(&psc_i2s->fifo_regs->tfnum) & 0x1ff,
-                        in_be16(&psc_i2s->fifo_regs->tfstat));
+                        in_be16(&psc_dma->psc_regs->sr_csr.status),
+                        in_be32(&psc_dma->psc_regs->sicr),
+                        in_be16(&psc_dma->fifo_regs->rfnum) & 0x1ff,
+                        in_be16(&psc_dma->fifo_regs->rfstat),
+                        in_be16(&psc_dma->fifo_regs->tfnum) & 0x1ff,
+                        in_be16(&psc_dma->fifo_regs->tfstat));
 }
 
-static int *psc_i2s_get_stat_attr(struct psc_i2s *psc_i2s, const char *name)
+static int *psc_i2s_get_stat_attr(struct psc_dma *psc_dma, const char *name)
 {
         if (strcmp(name, "playback_underrun") == 0)
-                return &psc_i2s->stats.underrun_count;
+                return &psc_dma->stats.underrun_count;
         if (strcmp(name, "capture_overrun") == 0)
-                return &psc_i2s->stats.overrun_count;
+                return &psc_dma->stats.overrun_count;
 
         return NULL;
 }
@@ -197,10 +197,10 @@ static int *psc_i2s_get_stat_attr(struct psc_i2s *psc_i2s, const char *name)
 static ssize_t psc_i2s_stat_show(struct device *dev,
                                  struct device_attribute *attr, char *buf)
 {
-        struct psc_i2s *psc_i2s = dev_get_drvdata(dev);
+        struct psc_dma *psc_dma = dev_get_drvdata(dev);
         int *attrib;
 
-        attrib = psc_i2s_get_stat_attr(psc_i2s, attr->attr.name);
+        attrib = psc_i2s_get_stat_attr(psc_dma, attr->attr.name);
         if (!attrib)
                 return 0;
 
@@ -212,10 +212,10 @@ static ssize_t psc_i2s_stat_store(struct device *dev,
                                   const char *buf,
                                   size_t count)
 {
-        struct psc_i2s *psc_i2s = dev_get_drvdata(dev);
+        struct psc_dma *psc_dma = dev_get_drvdata(dev);
         int *attrib;
 
-        attrib = psc_i2s_get_stat_attr(psc_i2s, attr->attr.name);
+        attrib = psc_i2s_get_stat_attr(psc_dma, attr->attr.name);
         if (!attrib)
                 return 0;
 
@@ -238,7 +238,7 @@ static int __devinit psc_i2s_of_probe(struct of_device *op,
                                       const struct of_device_id *match)
 {
         phys_addr_t fifo;
-        struct psc_i2s *psc_i2s;
+        struct psc_dma *psc_dma;
         struct resource res;
         int size, psc_id, irq, rc;
         const __be32 *prop;
@@ -265,56 +265,56 @@ static int __devinit psc_i2s_of_probe(struct of_device *op,
         }
 
         /* Allocate and initialize the driver private data */
-        psc_i2s = kzalloc(sizeof *psc_i2s, GFP_KERNEL);
-        if (!psc_i2s) {
+        psc_dma = kzalloc(sizeof *psc_dma, GFP_KERNEL);
+        if (!psc_dma) {
                 iounmap(regs);
                 return -ENOMEM;
         }
-        spin_lock_init(&psc_i2s->lock);
-        psc_i2s->irq = irq;
-        psc_i2s->psc_regs = regs;
-        psc_i2s->fifo_regs = regs + sizeof *psc_i2s->psc_regs;
-        psc_i2s->dev = &op->dev;
-        psc_i2s->playback.psc_i2s = psc_i2s;
-        psc_i2s->capture.psc_i2s = psc_i2s;
-        snprintf(psc_i2s->name, sizeof psc_i2s->name, "PSC%u", psc_id+1);
+        spin_lock_init(&psc_dma->lock);
+        psc_dma->irq = irq;
+        psc_dma->psc_regs = regs;
+        psc_dma->fifo_regs = regs + sizeof *psc_dma->psc_regs;
+        psc_dma->dev = &op->dev;
+        psc_dma->playback.psc_dma = psc_dma;
+        psc_dma->capture.psc_dma = psc_dma;
+        snprintf(psc_dma->name, sizeof psc_dma->name, "PSC%u", psc_id+1);
 
         /* Fill out the CPU DAI structure */
-        memcpy(&psc_i2s->dai, &psc_i2s_dai_template, sizeof psc_i2s->dai);
-        psc_i2s->dai.private_data = psc_i2s;
-        psc_i2s->dai.name = psc_i2s->name;
-        psc_i2s->dai.id = psc_id;
+        memcpy(&psc_dma->dai, &psc_i2s_dai_template, sizeof psc_dma->dai);
+        psc_dma->dai.private_data = psc_dma;
+        psc_dma->dai.name = psc_dma->name;
+        psc_dma->dai.id = psc_id;
 
         /* Find the address of the fifo data registers and setup the
          * DMA tasks */
         fifo = res.start + offsetof(struct mpc52xx_psc, buffer.buffer_32);
-        psc_i2s->capture.bcom_task =
+        psc_dma->capture.bcom_task =
                 bcom_psc_gen_bd_rx_init(psc_id, 10, fifo, 512);
-        psc_i2s->playback.bcom_task =
+        psc_dma->playback.bcom_task =
                 bcom_psc_gen_bd_tx_init(psc_id, 10, fifo);
-        if (!psc_i2s->capture.bcom_task ||
-            !psc_i2s->playback.bcom_task) {
+        if (!psc_dma->capture.bcom_task ||
+            !psc_dma->playback.bcom_task) {
                 dev_err(&op->dev, "Could not allocate bestcomm tasks\n");
                 iounmap(regs);
-                kfree(psc_i2s);
+                kfree(psc_dma);
                 return -ENODEV;
         }
 
         /* Disable all interrupts and reset the PSC */
-        out_be16(&psc_i2s->psc_regs->isr_imr.imr, 0);
-        out_8(&psc_i2s->psc_regs->command, 3 << 4); /* reset transmitter */
-        out_8(&psc_i2s->psc_regs->command, 2 << 4); /* reset receiver */
-        out_8(&psc_i2s->psc_regs->command, 1 << 4); /* reset mode */
-        out_8(&psc_i2s->psc_regs->command, 4 << 4); /* reset error */
+        out_be16(&psc_dma->psc_regs->isr_imr.imr, 0);
+        out_8(&psc_dma->psc_regs->command, 3 << 4); /* reset transmitter */
+        out_8(&psc_dma->psc_regs->command, 2 << 4); /* reset receiver */
+        out_8(&psc_dma->psc_regs->command, 1 << 4); /* reset mode */
+        out_8(&psc_dma->psc_regs->command, 4 << 4); /* reset error */
 
         /* Configure the serial interface mode; defaulting to CODEC8 mode */
-        psc_i2s->sicr = MPC52xx_PSC_SICR_DTS1 | MPC52xx_PSC_SICR_I2S |
+        psc_dma->sicr = MPC52xx_PSC_SICR_DTS1 | MPC52xx_PSC_SICR_I2S |
                         MPC52xx_PSC_SICR_CLKPOL;
         if (of_get_property(op->node, "fsl,cellslave", NULL))
-                psc_i2s->sicr |= MPC52xx_PSC_SICR_CELLSLAVE |
+                psc_dma->sicr |= MPC52xx_PSC_SICR_CELLSLAVE |
                                  MPC52xx_PSC_SICR_GENCLK;
-        out_be32(&psc_i2s->psc_regs->sicr,
-                 psc_i2s->sicr | MPC52xx_PSC_SICR_SIM_CODEC_8);
+        out_be32(&psc_dma->psc_regs->sicr,
+                 psc_dma->sicr | MPC52xx_PSC_SICR_SIM_CODEC_8);
 
         /* Check for the codec handle.  If it is not present then we
          * are done */
@@ -325,54 +325,54 @@ static int __devinit psc_i2s_of_probe(struct of_device *op,
          * First write: RxRdy (FIFO Alarm) generates rx FIFO irq
          * Second write: register Normal mode for non loopback
          */
-        out_8(&psc_i2s->psc_regs->mode, 0);
-        out_8(&psc_i2s->psc_regs->mode, 0);
+        out_8(&psc_dma->psc_regs->mode, 0);
+        out_8(&psc_dma->psc_regs->mode, 0);
 
         /* Set the TX and RX fifo alarm thresholds */
-        out_be16(&psc_i2s->fifo_regs->rfalarm, 0x100);
-        out_8(&psc_i2s->fifo_regs->rfcntl, 0x4);
-        out_be16(&psc_i2s->fifo_regs->tfalarm, 0x100);
-        out_8(&psc_i2s->fifo_regs->tfcntl, 0x7);
+        out_be16(&psc_dma->fifo_regs->rfalarm, 0x100);
+        out_8(&psc_dma->fifo_regs->rfcntl, 0x4);
+        out_be16(&psc_dma->fifo_regs->tfalarm, 0x100);
+        out_8(&psc_dma->fifo_regs->tfcntl, 0x7);
 
         /* Lookup the IRQ numbers */
-        psc_i2s->playback.irq =
-                bcom_get_task_irq(psc_i2s->playback.bcom_task);
-        psc_i2s->capture.irq =
-                bcom_get_task_irq(psc_i2s->capture.bcom_task);
+        psc_dma->playback.irq =
+                bcom_get_task_irq(psc_dma->playback.bcom_task);
+        psc_dma->capture.irq =
+                bcom_get_task_irq(psc_dma->capture.bcom_task);
 
         /* Save what we've done so it can be found again later */
-        dev_set_drvdata(&op->dev, psc_i2s);
+        dev_set_drvdata(&op->dev, psc_dma);
 
         /* Register the SYSFS files */
-        rc = device_create_file(psc_i2s->dev, &dev_attr_status);
-        rc |= device_create_file(psc_i2s->dev, &dev_attr_capture_overrun);
-        rc |= device_create_file(psc_i2s->dev, &dev_attr_playback_underrun);
+        rc = device_create_file(psc_dma->dev, &dev_attr_status);
+        rc |= device_create_file(psc_dma->dev, &dev_attr_capture_overrun);
+        rc |= device_create_file(psc_dma->dev, &dev_attr_playback_underrun);
         if (rc)
-                dev_info(psc_i2s->dev, "error creating sysfs files\n");
+                dev_info(psc_dma->dev, "error creating sysfs files\n");
 
-        snd_soc_register_platform(&psc_i2s_pcm_soc_platform);
+        snd_soc_register_platform(&psc_dma_pcm_soc_platform);
 
         /* Tell the ASoC OF helpers about it */
-        of_snd_soc_register_platform(&psc_i2s_pcm_soc_platform, op->node,
-                                     &psc_i2s->dai);
+        of_snd_soc_register_platform(&psc_dma_pcm_soc_platform, op->node,
+                                     &psc_dma->dai);
 
         return 0;
 }
 
 static int __devexit psc_i2s_of_remove(struct of_device *op)
 {
-        struct psc_i2s *psc_i2s = dev_get_drvdata(&op->dev);
+        struct psc_dma *psc_dma = dev_get_drvdata(&op->dev);
 
         dev_dbg(&op->dev, "psc_i2s_remove()\n");
 
-        snd_soc_unregister_platform(&psc_i2s_pcm_soc_platform);
+        snd_soc_unregister_platform(&psc_dma_pcm_soc_platform);
 
-        bcom_gen_bd_rx_release(psc_i2s->capture.bcom_task);
-        bcom_gen_bd_tx_release(psc_i2s->playback.bcom_task);
+        bcom_gen_bd_rx_release(psc_dma->capture.bcom_task);
+        bcom_gen_bd_tx_release(psc_dma->playback.bcom_task);
 
-        iounmap(psc_i2s->psc_regs);
-        iounmap(psc_i2s->fifo_regs);
-        kfree(psc_i2s);
+        iounmap(psc_dma->psc_regs);
+        iounmap(psc_dma->fifo_regs);
+        kfree(psc_dma);
         dev_set_drvdata(&op->dev, NULL);
 
         return 0;