diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/sh/rcar-dmac.c | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index be82d6997a55..48ee35e2bce6 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -770,20 +770,6 @@ static void rcar_dmac_clear_chcr_de(struct rcar_dmac_chan *chan) rcar_dmac_chcr_de_barrier(chan); } -static void rcar_dmac_sync_tcr(struct rcar_dmac_chan *chan) -{ - u32 chcr = rcar_dmac_chan_read(chan, RCAR_DMACHCR); - - if (!(chcr & RCAR_DMACHCR_DE)) - return; - - rcar_dmac_clear_chcr_de(chan); - - /* back DE if remain data exists */ - if (rcar_dmac_chan_read(chan, RCAR_DMATCR)) - rcar_dmac_chan_write(chan, RCAR_DMACHCR, chcr); -} - static void rcar_dmac_chan_halt(struct rcar_dmac_chan *chan) { u32 chcr = rcar_dmac_chan_read(chan, RCAR_DMACHCR); @@ -1367,9 +1353,6 @@ static unsigned int rcar_dmac_chan_get_residue(struct rcar_dmac_chan *chan, residue += chunk->size; } - if (desc->direction == DMA_DEV_TO_MEM) - rcar_dmac_sync_tcr(chan); - /* Add the residue for the current chunk. */ residue += rcar_dmac_chan_read(chan, RCAR_DMATCRB) << desc->xfer_shift; |