dmaengine: lgm: 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/20260108105619.3513561-8-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/lgm/lgm-dma.c b/drivers/dma/lgm/lgm-dma.c
index 8173c3f1075a629f54bb6172b9afd3579e51a91b..a7b9cf30f6addbc82725b8e5641c33028d9fd76d 100644 (file)
--- a/drivers/dma/lgm/lgm-dma.c
+++ b/drivers/dma/lgm/lgm-dma.c
@@ -1164,8 +1164,8 @@ ldma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
        struct dw2_desc *hw_ds;
        struct dw2_desc_sw *ds;
        struct scatterlist *sg;
-       int num = sglen, i;
        dma_addr_t addr;
+       int num, i;
 
        if (!sgl)
                return NULL;
@@ -1173,12 +1173,7 @@ ldma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
        if (d->ver > DMA_VER22)
                return ldma_chan_desc_cfg(chan, sgl->dma_address, sglen);
 
-       for_each_sg(sgl, sg, sglen, i) {
-               avail = sg_dma_len(sg);
-               if (avail > DMA_MAX_SIZE)
-                       num += DIV_ROUND_UP(avail, DMA_MAX_SIZE) - 1;
-       }
-
+       num = sg_nents_for_dma(sgl, sglen, DMA_MAX_SIZE);
        ds = dma_alloc_desc_resource(num, c);
        if (!ds)
                return NULL;