ASoC: atmel-pcm-pdc: merge atmel-pcm back in

atmel-pcm.c was split into two files to create a generic framework for both PDC
and DMA.

atmel-pcm-dma.c is using the generic dmaengine framework since 95e0e07e710e
(ASoC: atmel-pcm: use generic dmaengine framework).

Merge atmel-pcm.c in atmel-pcm-pdc.c as this is now the only user.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

4 files changed, 79 insertions, 128 deletions

diff --git a/sound/soc/atmel/Makefile b/sound/soc/atmel/Makefile
index 466a821da98c..b327e5cc8de3 100644
--- a/sound/soc/atmel/Makefile
+++ b/sound/soc/atmel/Makefile
@@ -1,10 +1,8 @@
 # AT91 Platform Support
-snd-soc-atmel-pcm-objs := atmel-pcm.o
 snd-soc-atmel-pcm-pdc-objs := atmel-pcm-pdc.o
 snd-soc-atmel-pcm-dma-objs := atmel-pcm-dma.o
 snd-soc-atmel_ssc_dai-objs := atmel_ssc_dai.o
 
-obj-$(CONFIG_SND_ATMEL_SOC) += snd-soc-atmel-pcm.o
 obj-$(CONFIG_SND_ATMEL_SOC_PDC) += snd-soc-atmel-pcm-pdc.o
 obj-$(CONFIG_SND_ATMEL_SOC_DMA) += snd-soc-atmel-pcm-dma.o
 obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel_ssc_dai.o
diff --git a/sound/soc/atmel/atmel-pcm-pdc.c b/sound/soc/atmel/atmel-pcm-pdc.c
index a366b3503c28..da861b44413f 100644
--- a/sound/soc/atmel/atmel-pcm-pdc.c
+++ b/sound/soc/atmel/atmel-pcm-pdc.c
@@ -47,6 +47,85 @@
 #include "atmel-pcm.h"
 
 
+static int atmel_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
+        int stream)
+{
+        struct snd_pcm_substream *substream = pcm->streams[stream].substream;
+        struct snd_dma_buffer *buf = &substream->dma_buffer;
+        size_t size = ATMEL_SSC_DMABUF_SIZE;
+
+        buf->dev.type = SNDRV_DMA_TYPE_DEV;
+        buf->dev.dev = pcm->card->dev;
+        buf->private_data = NULL;
+        buf->area = dma_alloc_coherent(pcm->card->dev, size,
+                        &buf->addr, GFP_KERNEL);
+        pr_debug("atmel-pcm: alloc dma buffer: area=%p, addr=%p, size=%zu\n",
+                        (void *)buf->area, (void *)(long)buf->addr, size);
+
+        if (!buf->area)
+                return -ENOMEM;
+
+        buf->bytes = size;
+        return 0;
+}
+
+static int atmel_pcm_mmap(struct snd_pcm_substream *substream,
+        struct vm_area_struct *vma)
+{
+        return remap_pfn_range(vma, vma->vm_start,
+                       substream->dma_buffer.addr >> PAGE_SHIFT,
+                       vma->vm_end - vma->vm_start, vma->vm_page_prot);
+}
+
+static int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
+{
+        struct snd_card *card = rtd->card->snd_card;
+        struct snd_pcm *pcm = rtd->pcm;
+        int ret;
+
+        ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+        if (ret)
+                return ret;
+
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
+                pr_debug("atmel-pcm: allocating PCM playback DMA buffer\n");
+                ret = atmel_pcm_preallocate_dma_buffer(pcm,
+                        SNDRV_PCM_STREAM_PLAYBACK);
+                if (ret)
+                        goto out;
+        }
+
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
+                pr_debug("atmel-pcm: allocating PCM capture DMA buffer\n");
+                ret = atmel_pcm_preallocate_dma_buffer(pcm,
+                        SNDRV_PCM_STREAM_CAPTURE);
+                if (ret)
+                        goto out;
+        }
+ out:
+        return ret;
+}
+
+static void atmel_pcm_free(struct snd_pcm *pcm)
+{
+        struct snd_pcm_substream *substream;
+        struct snd_dma_buffer *buf;
+        int stream;
+
+        for (stream = 0; stream < 2; stream++) {
+                substream = pcm->streams[stream].substream;
+                if (!substream)
+                        continue;
+
+                buf = &substream->dma_buffer;
+                if (!buf->area)
+                        continue;
+                dma_free_coherent(pcm->card->dev, buf->bytes,
+                                  buf->area, buf->addr);
+                buf->area = NULL;
+        }
+}
+
 /*--------------------------------------------------------------------------*\
  * Hardware definition
 \*--------------------------------------------------------------------------*/
diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
deleted file mode 100644
index 8ae3fa5ac60a..000000000000
--- a/sound/soc/atmel/atmel-pcm.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * atmel-pcm.c  --  ALSA PCM interface for the Atmel atmel SoC.
- *
- *  Copyright (C) 2005 SAN People
- *  Copyright (C) 2008 Atmel
- *
- * Authors: Sedji Gaouaou <sedji.gaouaou@atmel.com>
- *
- * Based on at91-pcm. by:
- * Frank Mandarino <fmandarino@endrelia.com>
- * Copyright 2006 Endrelia Technologies Inc.
- *
- * Based on pxa2xx-pcm.c by:
- *
- * Author:      Nicolas Pitre
- * Created:     Nov 30, 2004
- * Copyright:   (C) 2004 MontaVista Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-#include "atmel-pcm.h"
-
-static int atmel_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
-        int stream)
-{
-        struct snd_pcm_substream *substream = pcm->streams[stream].substream;
-        struct snd_dma_buffer *buf = &substream->dma_buffer;
-        size_t size = ATMEL_SSC_DMABUF_SIZE;
-
-        buf->dev.type = SNDRV_DMA_TYPE_DEV;
-        buf->dev.dev = pcm->card->dev;
-        buf->private_data = NULL;
-        buf->area = dma_alloc_coherent(pcm->card->dev, size,
-                        &buf->addr, GFP_KERNEL);
-        pr_debug("atmel-pcm: alloc dma buffer: area=%p, addr=%p, size=%zu\n",
-                        (void *)buf->area, (void *)(long)buf->addr, size);
-
-        if (!buf->area)
-                return -ENOMEM;
-
-        buf->bytes = size;
-        return 0;
-}
-
-int atmel_pcm_mmap(struct snd_pcm_substream *substream,
-        struct vm_area_struct *vma)
-{
-        return remap_pfn_range(vma, vma->vm_start,
-                       substream->dma_buffer.addr >> PAGE_SHIFT,
-                       vma->vm_end - vma->vm_start, vma->vm_page_prot);
-}
-EXPORT_SYMBOL_GPL(atmel_pcm_mmap);
-
-int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
-{
-        struct snd_card *card = rtd->card->snd_card;
-        struct snd_pcm *pcm = rtd->pcm;
-        int ret;
-
-        ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
-        if (ret)
-                return ret;
-
-        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
-                pr_debug("atmel-pcm: allocating PCM playback DMA buffer\n");
-                ret = atmel_pcm_preallocate_dma_buffer(pcm,
-                        SNDRV_PCM_STREAM_PLAYBACK);
-                if (ret)
-                        goto out;
-        }
-
-        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
-                pr_debug("atmel-pcm: allocating PCM capture DMA buffer\n");
-                ret = atmel_pcm_preallocate_dma_buffer(pcm,
-                        SNDRV_PCM_STREAM_CAPTURE);
-                if (ret)
-                        goto out;
-        }
- out:
-        return ret;
-}
-EXPORT_SYMBOL_GPL(atmel_pcm_new);
-
-void atmel_pcm_free(struct snd_pcm *pcm)
-{
-        struct snd_pcm_substream *substream;
-        struct snd_dma_buffer *buf;
-        int stream;
-
-        for (stream = 0; stream < 2; stream++) {
-                substream = pcm->streams[stream].substream;
-                if (!substream)
-                        continue;
-
-                buf = &substream->dma_buffer;
-                if (!buf->area)
-                        continue;
-                dma_free_coherent(pcm->card->dev, buf->bytes,
-                                  buf->area, buf->addr);
-                buf->area = NULL;
-        }
-}
-EXPORT_SYMBOL_GPL(atmel_pcm_free);
-
diff --git a/sound/soc/atmel/atmel-pcm.h b/sound/soc/atmel/atmel-pcm.h
index 12ae814eff21..6eaf081cad50 100644
--- a/sound/soc/atmel/atmel-pcm.h
+++ b/sound/soc/atmel/atmel-pcm.h
@@ -83,11 +83,6 @@ struct atmel_pcm_dma_params {
 #define ssc_readx(base, reg)            (__raw_readl((base) + (reg)))
 #define ssc_writex(base, reg, value)    __raw_writel((value), (base) + (reg))
 
-int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd);
-void atmel_pcm_free(struct snd_pcm *pcm);
-int atmel_pcm_mmap(struct snd_pcm_substream *substream,
-                struct vm_area_struct *vma);
-
 #if defined(CONFIG_SND_ATMEL_SOC_PDC) || \
         defined(CONFIG_SND_ATMEL_SOC_PDC_MODULE)
 int atmel_pcm_pdc_platform_register(struct device *dev);