dmaengine: bcm2835-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/20260108105619.3513561-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: andy-shev

drivers/dma/bcm2835-dma.c

@@ -260,23 +260,6 @@ static void bcm2835_dma_create_cb_set_length(
 	control_block->info |= finalextrainfo;
 }
 
-static inline size_t bcm2835_dma_count_frames_for_sg(
-	struct bcm2835_chan *c,
-	struct scatterlist *sgl,
-	unsigned int sg_len)
-{
-	size_t frames = 0;
-	struct scatterlist *sgent;
-	unsigned int i;
-	size_t plength = bcm2835_dma_max_frame_length(c);
-
-	for_each_sg(sgl, sgent, sg_len, i)
-		frames += bcm2835_dma_frames_for_length(
-			sg_dma_len(sgent), plength);
-
-	return frames;
-}
-
 /**
  * bcm2835_dma_create_cb_chain - create a control block and fills data in
  *
@@ -672,7 +655,7 @@ static struct dma_async_tx_descriptor *bcm2835_dma_prep_slave_sg(
 	}
 
 	/* count frames in sg list */
-	frames = bcm2835_dma_count_frames_for_sg(c, sgl, sg_len);
+	frames = sg_nents_for_dma(sgl, sg_len, bcm2835_dma_max_frame_length(c));
 
 	/* allocate the CB chain */
 	d = bcm2835_dma_create_cb_chain(chan, direction, false,