]> nv-tegra.nvidia Code Review - linux-2.6.git/blobdiff - drivers/dma/coh901318.c
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
[linux-2.6.git] / drivers / dma / coh901318.c
index a92d95eac86b204fcb62dd1dafbe8a7150957807..4234f416ef115055cb425822a2c411a73dd41590 100644 (file)
@@ -41,6 +41,8 @@ struct coh901318_desc {
        struct coh901318_lli *lli;
        enum dma_data_direction dir;
        unsigned long flags;
        struct coh901318_lli *lli;
        enum dma_data_direction dir;
        unsigned long flags;
+       u32 head_config;
+       u32 head_ctrl;
 };
 
 struct coh901318_base {
 };
 
 struct coh901318_base {
@@ -661,6 +663,9 @@ static struct coh901318_desc *coh901318_queue_start(struct coh901318_chan *cohc)
 
                coh901318_desc_submit(cohc, cohd);
 
 
                coh901318_desc_submit(cohc, cohd);
 
+               /* Program the transaction head */
+               coh901318_set_conf(cohc, cohd->head_config);
+               coh901318_set_ctrl(cohc, cohd->head_ctrl);
                coh901318_prep_linked_list(cohc, cohd->lli);
 
                /* start dma job on this channel */
                coh901318_prep_linked_list(cohc, cohd->lli);
 
                /* start dma job on this channel */
@@ -1091,8 +1096,6 @@ coh901318_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
        } else
                goto err_direction;
 
        } else
                goto err_direction;
 
-       coh901318_set_conf(cohc, config);
-
        /* The dma only supports transmitting packages up to
         * MAX_DMA_PACKET_SIZE. Calculate to total number of
         * dma elemts required to send the entire sg list
        /* The dma only supports transmitting packages up to
         * MAX_DMA_PACKET_SIZE. Calculate to total number of
         * dma elemts required to send the entire sg list
@@ -1129,16 +1132,18 @@ coh901318_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
        if (ret)
                goto err_lli_fill;
 
        if (ret)
                goto err_lli_fill;
 
-       /*
-        * Set the default ctrl for the channel to the one from the lli,
-        * things may have changed due to odd buffer alignment etc.
-        */
-       coh901318_set_ctrl(cohc, lli->control);
 
        COH_DBG(coh901318_list_print(cohc, lli));
 
        /* Pick a descriptor to handle this transfer */
        cohd = coh901318_desc_get(cohc);
 
        COH_DBG(coh901318_list_print(cohc, lli));
 
        /* Pick a descriptor to handle this transfer */
        cohd = coh901318_desc_get(cohc);
+       cohd->head_config = config;
+       /*
+        * Set the default head ctrl for the channel to the one from the
+        * lli, things may have changed due to odd buffer alignment
+        * etc.
+        */
+       cohd->head_ctrl = lli->control;
        cohd->dir = direction;
        cohd->flags = flags;
        cohd->desc.tx_submit = coh901318_tx_submit;
        cohd->dir = direction;
        cohd->flags = flags;
        cohd->desc.tx_submit = coh901318_tx_submit;