1 files changed, 10 insertions, 49 deletions

diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index b3f3e90054f2..f157c6f76b32 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -33,6 +33,8 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/dmapool.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include "dmaengine.h"
@@ -84,11 +86,6 @@ static void set_desc_cnt(struct fsldma_chan *chan,
 	hw->count = CPU_TO_DMA(chan, count, 32);
 }
 
-static u32 get_desc_cnt(struct fsldma_chan *chan, struct fsl_desc_sw *desc)
-{
-	return DMA_TO_CPU(chan, desc->hw.count, 32);
-}
-
 static void set_desc_src(struct fsldma_chan *chan,
 			 struct fsl_dma_ld_hw *hw, dma_addr_t src)
 {
@@ -99,16 +96,6 @@ static void set_desc_src(struct fsldma_chan *chan,
 	hw->src_addr = CPU_TO_DMA(chan, snoop_bits | src, 64);
 }
 
-static dma_addr_t get_desc_src(struct fsldma_chan *chan,
-			       struct fsl_desc_sw *desc)
-{
-	u64 snoop_bits;
-
-	snoop_bits = ((chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX)
-		? ((u64)FSL_DMA_SATR_SREADTYPE_SNOOP_READ << 32) : 0;
-	return DMA_TO_CPU(chan, desc->hw.src_addr, 64) & ~snoop_bits;
-}
-
 static void set_desc_dst(struct fsldma_chan *chan,
 			 struct fsl_dma_ld_hw *hw, dma_addr_t dst)
 {
@@ -119,16 +106,6 @@ static void set_desc_dst(struct fsldma_chan *chan,
 	hw->dst_addr = CPU_TO_DMA(chan, snoop_bits | dst, 64);
 }
 
-static dma_addr_t get_desc_dst(struct fsldma_chan *chan,
-			       struct fsl_desc_sw *desc)
-{
-	u64 snoop_bits;
-
-	snoop_bits = ((chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX)
-		? ((u64)FSL_DMA_DATR_DWRITETYPE_SNOOP_WRITE << 32) : 0;
-	return DMA_TO_CPU(chan, desc->hw.dst_addr, 64) & ~snoop_bits;
-}
-
 static void set_desc_next(struct fsldma_chan *chan,
 			  struct fsl_dma_ld_hw *hw, dma_addr_t next)
 {
@@ -406,7 +383,7 @@ static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx)
 	struct fsl_desc_sw *desc = tx_to_fsl_desc(tx);
 	struct fsl_desc_sw *child;
 	unsigned long flags;
-	dma_cookie_t cookie;
+	dma_cookie_t cookie = -EINVAL;
 
 	spin_lock_irqsave(&chan->desc_lock, flags);
 
@@ -852,10 +829,6 @@ static void fsldma_cleanup_descriptor(struct fsldma_chan *chan,
 				      struct fsl_desc_sw *desc)
 {
 	struct dma_async_tx_descriptor *txd = &desc->async_tx;
-	struct device *dev = chan->common.device->dev;
-	dma_addr_t src = get_desc_src(chan, desc);
-	dma_addr_t dst = get_desc_dst(chan, desc);
-	u32 len = get_desc_cnt(chan, desc);
 
 	/* Run the link descriptor callback function */
 	if (txd->callback) {
@@ -868,22 +841,7 @@ static void fsldma_cleanup_descriptor(struct fsldma_chan *chan,
 	/* Run any dependencies */
 	dma_run_dependencies(txd);
 
-	/* Unmap the dst buffer, if requested */
-	if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-		if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE)
-			dma_unmap_single(dev, dst, len, DMA_FROM_DEVICE);
-		else
-			dma_unmap_page(dev, dst, len, DMA_FROM_DEVICE);
-	}
-
-	/* Unmap the src buffer, if requested */
-	if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-		if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE)
-			dma_unmap_single(dev, src, len, DMA_TO_DEVICE);
-		else
-			dma_unmap_page(dev, src, len, DMA_TO_DEVICE);
-	}
-
+	dma_descriptor_unmap(txd);
 #ifdef FSL_DMA_LD_DEBUG
 	chan_dbg(chan, "LD %p free\n", desc);
 #endif
@@ -1253,7 +1211,9 @@ static int fsl_dma_chan_probe(struct fsldma_device *fdev,
 	WARN_ON(fdev->feature != chan->feature);
 
 	chan->dev = fdev->dev;
-	chan->id = ((res.start - 0x100) & 0xfff) >> 7;
+	chan->id = (res.start & 0xfff) < 0x300 ?
+		   ((res.start - 0x100) & 0xfff) >> 7 :
+		   ((res.start - 0x200) & 0xfff) >> 7;
 	if (chan->id >= FSL_DMA_MAX_CHANS_PER_DEVICE) {
 		dev_err(fdev->dev, "too many channels for device\n");
 		err = -EINVAL;
@@ -1426,6 +1386,7 @@ static int fsldma_of_remove(struct platform_device *op)
 }
 
 static const struct of_device_id fsldma_of_ids[] = {
+	{ .compatible = "fsl,elo3-dma", },
 	{ .compatible = "fsl,eloplus-dma", },
 	{ .compatible = "fsl,elo-dma", },
 	{}
@@ -1447,7 +1408,7 @@ static struct platform_driver fsldma_of_driver = {
 
 static __init int fsldma_init(void)
 {
-	pr_info("Freescale Elo / Elo Plus DMA driver\n");
+	pr_info("Freescale Elo series DMA driver\n");
 	return platform_driver_register(&fsldma_of_driver);
 }
 
@@ -1459,5 +1420,5 @@ static void __exit fsldma_exit(void)
 subsys_initcall(fsldma_init);
 module_exit(fsldma_exit);
 
-MODULE_DESCRIPTION("Freescale Elo / Elo Plus DMA driver");
+MODULE_DESCRIPTION("Freescale Elo series DMA driver");
 MODULE_LICENSE("GPL");