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ASoC: fsi: use SNDRV_DMA_TYPE_DEV for sound buffer

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Current fsi driver is using SNDRV_DMA_TYPE_CONTINUOUS
for snd_pcm_lib_preallocate_pages_for_all().
But, it came from original dma-sh7760.c,
and no longer needed.
This patch exchange its parameter, and removed
original dma mapping and un-needed
dma_sync_single_xxx() from driver.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Kuninori Morimoto 2014-06-22 17:55:18 -07:00 committed by Mark Brown
parent 6f2a06cd42
commit ffb83e8cb1
5 changed files with 17 additions and 37 deletions
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4
arch/arm/mach-shmobile/board-armadillo800eva.c
View File

@ -998,6 +998,8 @@ static struct platform_device fsi_wm8978_device = {
.id = 0,
.dev = {
.platform_data = &fsi_wm8978_info,
.coherent_dma_mask = DMA_BIT_MASK(32),
.dma_mask = &fsi_wm8978_device.dev.coherent_dma_mask,
},
};
@ -1021,6 +1023,8 @@ static struct platform_device fsi_hdmi_device = {
.id = 1,
.dev = {
.platform_data = &fsi2_hdmi_info,
.coherent_dma_mask = DMA_BIT_MASK(32),
.dma_mask = &fsi_hdmi_device.dev.coherent_dma_mask,
},
};

2
arch/arm/mach-shmobile/board-kzm9g.c
View File

@ -603,6 +603,8 @@ static struct platform_device fsi_ak4648_device = {
.name = "asoc-simple-card",
.dev = {
.platform_data = &fsi2_ak4648_info,
.coherent_dma_mask = DMA_BIT_MASK(32),
.dma_mask = &fsi_ak4648_device.dev.coherent_dma_mask,
},
};

4
arch/arm/mach-shmobile/board-mackerel.c
View File

@ -523,6 +523,8 @@ static struct platform_device fsi_hdmi_device = {
.id = 1,
.dev = {
.platform_data = &fsi2_hdmi_info,
.coherent_dma_mask = DMA_BIT_MASK(32),
.dma_mask = &fsi_hdmi_device.dev.coherent_dma_mask,
},
};
@ -919,6 +921,8 @@ static struct platform_device fsi_ak4643_device = {
.name = "asoc-simple-card",
.dev = {
.platform_data = &fsi2_ak4643_info,
.coherent_dma_mask = DMA_BIT_MASK(32),
.dma_mask = &fsi_ak4643_device.dev.coherent_dma_mask,
},
};

2
arch/sh/boards/mach-ecovec24/setup.c
View File

@ -874,6 +874,8 @@ static struct platform_device fsi_da7210_device = {
.name = "asoc-simple-card",
.dev = {
.platform_data = &fsi_da7210_info,
.coherent_dma_mask = DMA_BIT_MASK(32),
.dma_mask = &fsi_da7210_device.dev.coherent_dma_mask,
},
};

42
sound/soc/sh/fsi.c
View File

@ -233,7 +233,6 @@ struct fsi_stream {
*/
struct dma_chan *chan;
struct work_struct work;
dma_addr_t dma;
int dma_id;
int loop_cnt;
int additional_pos;
@ -1279,11 +1278,6 @@ static irqreturn_t fsi_interrupt(int irq, void *data)
*/
static int fsi_dma_init(struct fsi_priv *fsi, struct fsi_stream *io)
{
struct snd_pcm_runtime *runtime = io->substream->runtime;
struct snd_soc_dai *dai = fsi_get_dai(io->substream);
enum dma_data_direction dir = fsi_stream_is_play(fsi, io) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE;
/*
* 24bit data : 24bit bus / package in back
* 16bit data : 16bit bus / stream mode
@ -1293,19 +1287,7 @@ static int fsi_dma_init(struct fsi_priv *fsi, struct fsi_stream *io)
io->loop_cnt = 2; /* push 1st, 2nd period first, then 3rd, 4th... */
io->additional_pos = 0;
io->dma = dma_map_single(dai->dev, runtime->dma_area,
snd_pcm_lib_buffer_bytes(io->substream), dir);
return 0;
}
static int fsi_dma_quit(struct fsi_priv *fsi, struct fsi_stream *io)
{
struct snd_soc_dai *dai = fsi_get_dai(io->substream);
enum dma_data_direction dir = fsi_stream_is_play(fsi, io) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE;
dma_unmap_single(dai->dev, io->dma,
snd_pcm_lib_buffer_bytes(io->substream), dir);
return 0;
}
@ -1317,7 +1299,8 @@ static dma_addr_t fsi_dma_get_area(struct fsi_stream *io, int additional)
if (period >= runtime->periods)
period = 0;
return io->dma + samples_to_bytes(runtime, period * io->period_samples);
return runtime->dma_addr +
samples_to_bytes(runtime, period * io->period_samples);
}
static void fsi_dma_complete(void *data)
@ -1325,12 +1308,6 @@ static void fsi_dma_complete(void *data)
struct fsi_stream *io = (struct fsi_stream *)data;
struct fsi_priv *fsi = fsi_stream_to_priv(io);
struct snd_pcm_runtime *runtime = io->substream->runtime;
struct snd_soc_dai *dai = fsi_get_dai(io->substream);
enum dma_data_direction dir = fsi_stream_is_play(fsi, io) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE;
dma_sync_single_for_cpu(dai->dev, fsi_dma_get_area(io, 0),
samples_to_bytes(runtime, io->period_samples), dir);
io->buff_sample_pos += io->period_samples;
io->period_pos++;
@ -1369,8 +1346,6 @@ static void fsi_dma_do_work(struct work_struct *work)
for (i = 0; i < io->loop_cnt; i++) {
buf = fsi_dma_get_area(io, io->additional_pos);
dma_sync_single_for_device(dai->dev, buf, len, dir);
desc = dmaengine_prep_slave_single(io->chan, buf, len, dir,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc) {
@ -1495,7 +1470,6 @@ static int fsi_dma_remove(struct fsi_priv *fsi, struct fsi_stream *io)
static struct fsi_stream_handler fsi_dma_push_handler = {
.init = fsi_dma_init,
.quit = fsi_dma_quit,
.probe = fsi_dma_probe,
.transfer = fsi_dma_transfer,
.remove = fsi_dma_remove,
@ -1850,16 +1824,10 @@ static void fsi_pcm_free(struct snd_pcm *pcm)
static int fsi_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_pcm *pcm = rtd->pcm;
/*
* dont use SNDRV_DMA_TYPE_DEV, since it will oops the SH kernel
* in MMAP mode (i.e. aplay -M)
*/
return snd_pcm_lib_preallocate_pages_for_all(
pcm,
SNDRV_DMA_TYPE_CONTINUOUS,
snd_dma_continuous_data(GFP_KERNEL),
rtd->pcm,
SNDRV_DMA_TYPE_DEV,
rtd->card->snd_card->dev,
PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
}