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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2012-05-28 23:29:36 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-06-03 13:06:39 +0100 |
| commit | 5514efdfe0384576ef38c66b1672b6826696fbf3 (patch) | |
| tree | 8aa4471857c197e6cac672d19ea1402d0d405bae /sound/soc/sh | |
| parent | 01a0c1139c2bd075d005253093e7060022c5d0cb (diff) | |
| download | linux-stable-5514efdfe0384576ef38c66b1672b6826696fbf3.tar.gz linux-stable-5514efdfe0384576ef38c66b1672b6826696fbf3.tar.bz2 linux-stable-5514efdfe0384576ef38c66b1672b6826696fbf3.zip | |
ASoC: fsi: use dmaengine helper functions
This patch used dmaengine helper functions instead of using hand setting.
And reduced local variables
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/sh')
| -rw-r--r-- | sound/soc/sh/fsi.c | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index 2ef98536f1da..fcaa6b8abb0c 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -1089,13 +1089,10 @@ static void fsi_dma_do_tasklet(unsigned long data) { struct fsi_stream *io = (struct fsi_stream *)data; struct fsi_priv *fsi = fsi_stream_to_priv(io); - struct dma_chan *chan; struct snd_soc_dai *dai; struct dma_async_tx_descriptor *desc; - struct scatterlist sg; struct snd_pcm_runtime *runtime; enum dma_data_direction dir; - dma_cookie_t cookie; int is_play = fsi_stream_is_play(fsi, io); int len; dma_addr_t buf; @@ -1104,7 +1101,6 @@ static void fsi_dma_do_tasklet(unsigned long data) return; dai = fsi_get_dai(io->substream); - chan = io->chan; runtime = io->substream->runtime; dir = is_play ? DMA_TO_DEVICE : DMA_FROM_DEVICE; len = samples_to_bytes(runtime, io->period_samples); @@ -1112,14 +1108,8 @@ static void fsi_dma_do_tasklet(unsigned long data) dma_sync_single_for_device(dai->dev, buf, len, dir); - sg_init_table(&sg, 1); - sg_set_page(&sg, pfn_to_page(PFN_DOWN(buf)), - len , offset_in_page(buf)); - sg_dma_address(&sg) = buf; - sg_dma_len(&sg) = len; - - desc = dmaengine_prep_slave_sg(chan, &sg, 1, dir, - DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + desc = dmaengine_prep_slave_single(io->chan, buf, len, dir, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!desc) { dev_err(dai->dev, "dmaengine_prep_slave_sg() fail\n"); return; @@ -1128,13 +1118,12 @@ static void fsi_dma_do_tasklet(unsigned long data) desc->callback = fsi_dma_complete; desc->callback_param = io; - cookie = desc->tx_submit(desc); - if (cookie < 0) { + if (dmaengine_submit(desc) < 0) { dev_err(dai->dev, "tx_submit() fail\n"); return; } - dma_async_issue_pending(chan); + dma_async_issue_pending(io->chan); /* * FIXME |