From: Daniel Silsby <dansilsby@xxxxxxxxx>
This is the standard method provided by dmaengine header.
Signed-off-by: Daniel Silsby <dansilsby@xxxxxxxxx>
---
drivers/dma/dma-jz4780.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index 690b853977b2..084b7a46a68d 100644
--- a/drivers/dma/dma-jz4780.c
+++ b/drivers/dma/dma-jz4780.c
@@ -633,6 +633,7 @@ static enum dma_status jz4780_dma_tx_status(struct dma_chan *chan,
struct virt_dma_desc *vdesc;
enum dma_status status;
unsigned long flags;
+ unsigned long residue = 0;
status = dma_cookie_status(chan, cookie, txstate);
if ((status == DMA_COMPLETE) || (txstate == NULL))
@@ -643,13 +644,13 @@ static enum dma_status jz4780_dma_tx_status(struct dma_chan *chan,
vdesc = vchan_find_desc(&jzchan->vchan, cookie);
if (vdesc) {
/* On the issued list, so hasn't been processed yet */
- txstate->residue = jz4780_dma_desc_residue(jzchan,
+ residue = jz4780_dma_desc_residue(jzchan,
to_jz4780_dma_desc(vdesc), 0);
} else if (cookie == jzchan->desc->vdesc.tx.cookie) {
- txstate->residue = jz4780_dma_desc_residue(jzchan, jzchan->desc,
+ residue = jz4780_dma_desc_residue(jzchan, jzchan->desc,
jzchan->curr_hwdesc + 1);
- } else
- txstate->residue = 0;
+ }
+ dma_set_residue(txstate, residue);
if (vdesc && jzchan->desc && vdesc == &jzchan->desc->vdesc
&& jzchan->desc->status & (JZ_DMA_DCS_AR | JZ_DMA_DCS_HLT))
--
2.18.0
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