1 files changed, 20 insertions, 14 deletions

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index a3b6035b6c86..acbb364674ff 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -29,7 +29,7 @@
 #include <linux/dma-mapping.h>
 
 /**
- * enum dma_state - resource PNP/power managment state
+ * enum dma_state - resource PNP/power management state
  * @DMA_RESOURCE_SUSPEND: DMA device going into low power state
  * @DMA_RESOURCE_RESUME: DMA device returning to full power
  * @DMA_RESOURCE_AVAILABLE: DMA device available to the system
@@ -95,6 +95,15 @@ enum dma_transaction_type {
 #define DMA_TX_TYPE_END (DMA_INTERRUPT + 1)
 
 /**
+ * enum dma_prep_flags - DMA flags to augment operation preparation
+ * @DMA_PREP_INTERRUPT - trigger an interrupt (callback) upon completion of
+ *      this transaction
+ */
+enum dma_prep_flags {
+        DMA_PREP_INTERRUPT = (1 << 0),
+};
+
+/**
  * dma_cap_mask_t - capabilities bitmap modeled after cpumask_t.
  * See linux/cpumask.h
  */
@@ -132,7 +141,7 @@ struct dma_chan {
 
         /* sysfs */
         int chan_id;
-        struct class_device class_dev;
+        struct device dev;
 
         struct kref refcount;
         int slow_ref;
@@ -142,6 +151,7 @@ struct dma_chan {
         struct dma_chan_percpu *local;
 };
 
+#define to_dma_chan(p) container_of(p, struct dma_chan, dev)
 
 void dma_chan_cleanup(struct kref *kref);
 
@@ -208,8 +218,6 @@ typedef void (*dma_async_tx_callback)(void *dma_async_param);
  *      descriptors
  * @chan: target channel for this operation
  * @tx_submit: set the prepared descriptor(s) to be executed by the engine
- * @tx_set_dest: set a destination address in a hardware descriptor
- * @tx_set_src: set a source address in a hardware descriptor
  * @callback: routine to call after this operation is complete
  * @callback_param: general parameter to pass to the callback routine
  * ---async_tx api specific fields---
@@ -226,10 +234,6 @@ struct dma_async_tx_descriptor {
         struct list_head tx_list;
         struct dma_chan *chan;
         dma_cookie_t (*tx_submit)(struct dma_async_tx_descriptor *tx);
-        void (*tx_set_dest)(dma_addr_t addr,
-                struct dma_async_tx_descriptor *tx, int index);
-        void (*tx_set_src)(dma_addr_t addr,
-                struct dma_async_tx_descriptor *tx, int index);
         dma_async_tx_callback callback;
         void *callback_param;
         struct list_head depend_list;
@@ -278,15 +282,17 @@ struct dma_device {
         void (*device_free_chan_resources)(struct dma_chan *chan);
 
         struct dma_async_tx_descriptor *(*device_prep_dma_memcpy)(
-                struct dma_chan *chan, size_t len, int int_en);
+                struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
+                size_t len, unsigned long flags);
         struct dma_async_tx_descriptor *(*device_prep_dma_xor)(
-                struct dma_chan *chan, unsigned int src_cnt, size_t len,
-                int int_en);
+                struct dma_chan *chan, dma_addr_t dest, dma_addr_t *src,
+                unsigned int src_cnt, size_t len, unsigned long flags);
         struct dma_async_tx_descriptor *(*device_prep_dma_zero_sum)(
-                struct dma_chan *chan, unsigned int src_cnt, size_t len,
-                u32 *result, int int_en);
+                struct dma_chan *chan, dma_addr_t *src, unsigned int src_cnt,
+                size_t len, u32 *result, unsigned long flags);
         struct dma_async_tx_descriptor *(*device_prep_dma_memset)(
-                struct dma_chan *chan, int value, size_t len, int int_en);
+                struct dma_chan *chan, dma_addr_t dest, int value, size_t len,
+                unsigned long flags);
         struct dma_async_tx_descriptor *(*device_prep_dma_interrupt)(
                 struct dma_chan *chan);