From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
Remove original filter from fsi_dma_probe(), and use SH-DMA suitable filter.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/sh/fsi.c | 36 +++++++++++++++++++++++------------- 1 file changed, 23 insertions(+), 13 deletions(-)
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index b33ca7c..6101055 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -232,9 +232,9 @@ struct fsi_stream { * these are for DMAEngine */ struct dma_chan *chan; - struct sh_dmae_slave slave; /* see fsi_handler_init() */ struct work_struct work; dma_addr_t dma; + int dma_id; int loop_cnt; int additional_pos; }; @@ -1410,15 +1410,6 @@ static void fsi_dma_do_work(struct work_struct *work) } }
-static bool fsi_dma_filter(struct dma_chan *chan, void *param) -{ - struct sh_dmae_slave *slave = param; - - chan->private = slave; - - return true; -} - static int fsi_dma_transfer(struct fsi_priv *fsi, struct fsi_stream *io) { schedule_work(&io->work); @@ -1446,15 +1437,34 @@ static int fsi_dma_push_start_stop(struct fsi_priv *fsi, struct fsi_stream *io, static int fsi_dma_probe(struct fsi_priv *fsi, struct fsi_stream *io, struct device *dev) { dma_cap_mask_t mask; + int is_play = fsi_stream_is_play(fsi, io);
dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask);
- io->chan = dma_request_channel(mask, fsi_dma_filter, &io->slave); + io->chan = dma_request_slave_channel_compat(mask, + shdma_chan_filter, (void *)io->dma_id, + dev, is_play ? "tx" : "rx"); + if (io->chan) { + struct dma_slave_config cfg; + int ret; + + cfg.slave_id = io->dma_id; + cfg.dst_addr = 0; /* use default addr */ + cfg.src_addr = 0; /* use default addr */ + cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM; + + ret = dmaengine_slave_config(io->chan, &cfg); + if (ret < 0) { + dma_release_channel(io->chan); + io->chan = NULL; + } + } + if (!io->chan) {
/* switch to PIO handler */ - if (fsi_stream_is_play(fsi, io)) + if (is_play) fsi->playback.handler = &fsi_pio_push_handler; else fsi->capture.handler = &fsi_pio_pop_handler; @@ -1960,7 +1970,7 @@ static void fsi_handler_init(struct fsi_priv *fsi, fsi->capture.priv = fsi;
if (info->tx_id) { - fsi->playback.slave.shdma_slave.slave_id = info->tx_id; + fsi->playback.dma_id = info->tx_id; fsi->playback.handler = &fsi_dma_push_handler; } }