diff options
Diffstat (limited to 'drivers/dma/tegra20-apb-dma.c')
| -rw-r--r-- | drivers/dma/tegra20-apb-dma.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index c0836a7a8631..8e0ea2438ce1 100644 --- a/drivers/dma/tegra20-apb-dma.c +++ b/drivers/dma/tegra20-apb-dma.c @@ -731,6 +731,7 @@ static enum dma_status tegra_dma_tx_status(struct dma_chan *dc, struct tegra_dma_sg_req *sg_req; enum dma_status ret; unsigned long flags; + unsigned int residual; spin_lock_irqsave(&tdc->lock, flags); @@ -744,9 +745,10 @@ static enum dma_status tegra_dma_tx_status(struct dma_chan *dc, /* Check on wait_ack desc status */ list_for_each_entry(dma_desc, &tdc->free_dma_desc, node) { if (dma_desc->txd.cookie == cookie) { - dma_set_residue(txstate, - dma_desc->bytes_requested - - dma_desc->bytes_transferred); + residual = dma_desc->bytes_requested - + (dma_desc->bytes_transferred % + dma_desc->bytes_requested); + dma_set_residue(txstate, residual); ret = dma_desc->dma_status; spin_unlock_irqrestore(&tdc->lock, flags); return ret; @@ -757,9 +759,10 @@ static enum dma_status tegra_dma_tx_status(struct dma_chan *dc, list_for_each_entry(sg_req, &tdc->pending_sg_req, node) { dma_desc = sg_req->dma_desc; if (dma_desc->txd.cookie == cookie) { - dma_set_residue(txstate, - dma_desc->bytes_requested - - dma_desc->bytes_transferred); + residual = dma_desc->bytes_requested - + (dma_desc->bytes_transferred % + dma_desc->bytes_requested); + dma_set_residue(txstate, residual); ret = dma_desc->dma_status; spin_unlock_irqrestore(&tdc->lock, flags); return ret; |