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dmaengine: pxa-dma: use sg_nents_for_dma() helper

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Instead of open coded variant let's use recently introduced helper.

Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260108105619.3513561-9-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Andy Shevchenko 2026-01-08 11:50:19 +01:00 • committed by Vinod Koul
parent f9b0274f53
commit 068942eaa2
1 changed files with 2 additions and 3 deletions
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5
drivers/dma/pxa_dma.c
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@ -970,7 +970,7 @@ pxad_prep_slave_sg(struct dma_chan *dchan, struct scatterlist *sgl,
struct scatterlist *sg;
dma_addr_t dma;
u32 dcmd, dsadr = 0, dtadr = 0;
unsigned int nb_desc = 0, i, j = 0;
unsigned int nb_desc, i, j = 0;
if ((sgl == NULL) || (sg_len == 0))
return NULL;
@ -979,8 +979,7 @@ pxad_prep_slave_sg(struct dma_chan *dchan, struct scatterlist *sgl,
dev_dbg(&chan->vc.chan.dev->device,
"%s(): dir=%d flags=%lx\n", __func__, dir, flags);
for_each_sg(sgl, sg, sg_len, i)
nb_desc += DIV_ROUND_UP(sg_dma_len(sg), PDMA_MAX_DESC_BYTES);
nb_desc = sg_nents_for_dma(sgl, sg_len, PDMA_MAX_DESC_BYTES);
sw_desc = pxad_alloc_desc(chan, nb_desc + 1);
if (!sw_desc)
return NULL;