2 files changed, 15 insertions, 109 deletions

diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 8cf87b1a284b..8722bcba489d 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -2124,7 +2124,7 @@ static int axidma_clk_init(struct platform_device *pdev, struct clk **axi_clk,
 	*axi_clk = devm_clk_get(&pdev->dev, "s_axi_lite_aclk");
 	if (IS_ERR(*axi_clk)) {
 		err = PTR_ERR(*axi_clk);
-		dev_err(&pdev->dev, "failed to get axi_aclk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to get axi_aclk (%d)\n", err);
 		return err;
 	}
 
@@ -2142,25 +2142,25 @@ static int axidma_clk_init(struct platform_device *pdev, struct clk **axi_clk,
 
 	err = clk_prepare_enable(*axi_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable axi_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable axi_clk (%d)\n", err);
 		return err;
 	}
 
 	err = clk_prepare_enable(*tx_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable tx_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable tx_clk (%d)\n", err);
 		goto err_disable_axiclk;
 	}
 
 	err = clk_prepare_enable(*rx_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable rx_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable rx_clk (%d)\n", err);
 		goto err_disable_txclk;
 	}
 
 	err = clk_prepare_enable(*sg_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable sg_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable sg_clk (%d)\n", err);
 		goto err_disable_rxclk;
 	}
 
@@ -2189,26 +2189,26 @@ static int axicdma_clk_init(struct platform_device *pdev, struct clk **axi_clk,
 	*axi_clk = devm_clk_get(&pdev->dev, "s_axi_lite_aclk");
 	if (IS_ERR(*axi_clk)) {
 		err = PTR_ERR(*axi_clk);
-		dev_err(&pdev->dev, "failed to get axi_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to get axi_clk (%d)\n", err);
 		return err;
 	}
 
 	*dev_clk = devm_clk_get(&pdev->dev, "m_axi_aclk");
 	if (IS_ERR(*dev_clk)) {
 		err = PTR_ERR(*dev_clk);
-		dev_err(&pdev->dev, "failed to get dev_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to get dev_clk (%d)\n", err);
 		return err;
 	}
 
 	err = clk_prepare_enable(*axi_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable axi_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable axi_clk (%d)\n", err);
 		return err;
 	}
 
 	err = clk_prepare_enable(*dev_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable dev_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable dev_clk (%d)\n", err);
 		goto err_disable_axiclk;
 	}
 
@@ -2229,7 +2229,7 @@ static int axivdma_clk_init(struct platform_device *pdev, struct clk **axi_clk,
 	*axi_clk = devm_clk_get(&pdev->dev, "s_axi_lite_aclk");
 	if (IS_ERR(*axi_clk)) {
 		err = PTR_ERR(*axi_clk);
-		dev_err(&pdev->dev, "failed to get axi_aclk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to get axi_aclk (%d)\n", err);
 		return err;
 	}
 
@@ -2251,31 +2251,31 @@ static int axivdma_clk_init(struct platform_device *pdev, struct clk **axi_clk,
 
 	err = clk_prepare_enable(*axi_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable axi_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable axi_clk (%d)\n", err);
 		return err;
 	}
 
 	err = clk_prepare_enable(*tx_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable tx_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable tx_clk (%d)\n", err);
 		goto err_disable_axiclk;
 	}
 
 	err = clk_prepare_enable(*txs_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable txs_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable txs_clk (%d)\n", err);
 		goto err_disable_txclk;
 	}
 
 	err = clk_prepare_enable(*rx_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable rx_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable rx_clk (%d)\n", err);
 		goto err_disable_txsclk;
 	}
 
 	err = clk_prepare_enable(*rxs_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable rxs_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable rxs_clk (%d)\n", err);
 		goto err_disable_rxclk;
 	}
 
diff --git a/drivers/dma/xilinx/zynqmp_dma.c b/drivers/dma/xilinx/zynqmp_dma.c
index 47f64192d2fd..1ee1241ca797 100644
--- a/drivers/dma/xilinx/zynqmp_dma.c
+++ b/drivers/dma/xilinx/zynqmp_dma.c
@@ -830,98 +830,6 @@ static struct dma_async_tx_descriptor *zynqmp_dma_prep_memcpy(
 }
 
 /**
- * zynqmp_dma_prep_slave_sg - prepare descriptors for a memory sg transaction
- * @dchan: DMA channel
- * @dst_sg: Destination scatter list
- * @dst_sg_len: Number of entries in destination scatter list
- * @src_sg: Source scatter list
- * @src_sg_len: Number of entries in source scatter list
- * @flags: transfer ack flags
- *
- * Return: Async transaction descriptor on success and NULL on failure
- */
-static struct dma_async_tx_descriptor *zynqmp_dma_prep_sg(
-			struct dma_chan *dchan, struct scatterlist *dst_sg,
-			unsigned int dst_sg_len, struct scatterlist *src_sg,
-			unsigned int src_sg_len, unsigned long flags)
-{
-	struct zynqmp_dma_desc_sw *new, *first = NULL;
-	struct zynqmp_dma_chan *chan = to_chan(dchan);
-	void *desc = NULL, *prev = NULL;
-	size_t len, dst_avail, src_avail;
-	dma_addr_t dma_dst, dma_src;
-	u32 desc_cnt = 0, i;
-	struct scatterlist *sg;
-
-	for_each_sg(src_sg, sg, src_sg_len, i)
-		desc_cnt += DIV_ROUND_UP(sg_dma_len(sg),
-					 ZYNQMP_DMA_MAX_TRANS_LEN);
-
-	spin_lock_bh(&chan->lock);
-	if (desc_cnt > chan->desc_free_cnt) {
-		spin_unlock_bh(&chan->lock);
-		dev_dbg(chan->dev, "chan %p descs are not available\n", chan);
-		return NULL;
-	}
-	chan->desc_free_cnt = chan->desc_free_cnt - desc_cnt;
-	spin_unlock_bh(&chan->lock);
-
-	dst_avail = sg_dma_len(dst_sg);
-	src_avail = sg_dma_len(src_sg);
-
-	/* Run until we are out of scatterlist entries */
-	while (true) {
-		/* Allocate and populate the descriptor */
-		new = zynqmp_dma_get_descriptor(chan);
-		desc = (struct zynqmp_dma_desc_ll *)new->src_v;
-		len = min_t(size_t, src_avail, dst_avail);
-		len = min_t(size_t, len, ZYNQMP_DMA_MAX_TRANS_LEN);
-		if (len == 0)
-			goto fetch;
-		dma_dst = sg_dma_address(dst_sg) + sg_dma_len(dst_sg) -
-			dst_avail;
-		dma_src = sg_dma_address(src_sg) + sg_dma_len(src_sg) -
-			src_avail;
-
-		zynqmp_dma_config_sg_ll_desc(chan, desc, dma_src, dma_dst,
-					     len, prev);
-		prev = desc;
-		dst_avail -= len;
-		src_avail -= len;
-
-		if (!first)
-			first = new;
-		else
-			list_add_tail(&new->node, &first->tx_list);
-fetch:
-		/* Fetch the next dst scatterlist entry */
-		if (dst_avail == 0) {
-			if (dst_sg_len == 0)
-				break;
-			dst_sg = sg_next(dst_sg);
-			if (dst_sg == NULL)
-				break;
-			dst_sg_len--;
-			dst_avail = sg_dma_len(dst_sg);
-		}
-		/* Fetch the next src scatterlist entry */
-		if (src_avail == 0) {
-			if (src_sg_len == 0)
-				break;
-			src_sg = sg_next(src_sg);
-			if (src_sg == NULL)
-				break;
-			src_sg_len--;
-			src_avail = sg_dma_len(src_sg);
-		}
-	}
-
-	zynqmp_dma_desc_config_eod(chan, desc);
-	first->async_tx.flags = flags;
-	return &first->async_tx;
-}
-
-/**
  * zynqmp_dma_chan_remove - Channel remove function
  * @chan: ZynqMP DMA channel pointer
  */
@@ -1064,11 +972,9 @@ static int zynqmp_dma_probe(struct platform_device *pdev)
 	INIT_LIST_HEAD(&zdev->common.channels);
 
 	dma_set_mask(&pdev->dev, DMA_BIT_MASK(44));
-	dma_cap_set(DMA_SG, zdev->common.cap_mask);
 	dma_cap_set(DMA_MEMCPY, zdev->common.cap_mask);
 
 	p = &zdev->common;
-	p->device_prep_dma_sg = zynqmp_dma_prep_sg;
 	p->device_prep_dma_memcpy = zynqmp_dma_prep_memcpy;
 	p->device_terminate_all = zynqmp_dma_device_terminate_all;
 	p->device_issue_pending = zynqmp_dma_issue_pending;