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dmaengine: dma-jz4780: Use dma_set_residue() 

This is the standard method provided by dmaengine header.

Signed-off-by: Daniel Silsby <dansilsby@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Daniel Silsby 2018-08-29 23:32:57 +02:00 committed by Vinod Koul
parent 83ef4fb755
commit 1f0b0f235a
1 changed files with 5 additions and 4 deletions
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9
drivers/dma/dma-jz4780.c
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@ -639,6 +639,7 @@ 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))
@ -649,13 +650,13 @@ 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))