From: "Ira W. Snyder" <i...@ovro.caltech.edu>
This function will be modified in the next patch in the series. By
moving the function in a patch separate from the changes, it will make
review easier.
Signed-off-by: Ira W. Snyder <i...@ovro.caltech.edu>
---
drivers/dma/fsldma.c | 96 +++++++++++++++++++++++++-------------------------
1 files changed, 48 insertions(+), 48 deletions(-)
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index c34a628..80edc63 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -409,6 +409,54 @@ static void fsl_dma_free_descriptor(struct fsldma_chan
*chan, struct fsl_desc_sw
dma_pool_free(chan->desc_pool, desc, desc->async_tx.phys);
}
+/**
+ * fsldma_cleanup_descriptor - cleanup and free a single link descriptor
+ * @chan: Freescale DMA channel
+ * @desc: descriptor to cleanup and free
+ *
+ * This function is used on a descriptor which has been executed by the DMA
+ * controller. It will run any callbacks, submit any dependencies, and then
+ * free the descriptor.
+ */
+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) {
+#ifdef FSL_DMA_LD_DEBUG
+ chan_dbg(chan, "LD %p callback\n", desc);
+#endif
+ txd->callback(txd->callback_param);
+ }
+
+ /* 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);
+ }
+
+ fsl_dma_free_descriptor(chan, desc);
+}
+
static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx)
{
struct fsldma_chan *chan = to_fsl_chan(tx->chan);
@@ -807,54 +855,6 @@ static int fsl_dma_device_control(struct dma_chan *dchan,
}
/**
- * fsldma_cleanup_descriptor - cleanup and free a single link descriptor
- * @chan: Freescale DMA channel
- * @desc: descriptor to cleanup and free
- *
- * This function is used on a descriptor which has been executed by the DMA
- * controller. It will run any callbacks, submit any dependencies, and then
- * free the descriptor.
- */
-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) {
-#ifdef FSL_DMA_LD_DEBUG
- chan_dbg(chan, "LD %p callback\n", desc);
-#endif
- txd->callback(txd->callback_param);
- }
-
- /* 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);
- }
-
- fsl_dma_free_descriptor(chan, desc);
-}
-
-/**
* fsl_chan_xfer_ld_queue - transfer any pending transactions
* @chan : Freescale DMA channel
*
--
1.7.8.6
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