dmaengine: pxa-dma: use sg_nents_for_dma() helper

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>

diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c
index 249296389771cf685b65eb11e38fd0262c26679d..b639c8b51e87868e067a5c178aa7be3abdb7e7ab 100644 (file)
--- a/drivers/dma/pxa_dma.c
+++ b/drivers/dma/pxa_dma.c
@@ -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;