Commit 5514efdf authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Mark Brown
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ASoC: fsi: use dmaengine helper functions 



This patch used dmaengine helper functions instead of using hand setting.
And reduced local variables

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 01a0c113

sound/soc/sh/fsi.c

+4 −15
Original line number Diff line number Diff line
@@ -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);
@@ -1112,13 +1108,7 @@ 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,

	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");
@@ -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