Merge branch 'apei' into release

[mv-sheeva.git] / drivers / dma / ste_dma40.c

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index d82f431b55f0a5f6fc8596593fa422e6f745eacc..fab68a5532054650f979143d2508827a458da9e9 100644 (file)
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -1923,6 +1923,18 @@ err:
        return NULL;
 }
 
+static struct dma_async_tx_descriptor *
+d40_prep_sg(struct dma_chan *chan,
+           struct scatterlist *dst_sg, unsigned int dst_nents,
+           struct scatterlist *src_sg, unsigned int src_nents,
+           unsigned long dma_flags)
+{
+       if (dst_nents != src_nents)
+               return NULL;
+
+       return stedma40_memcpy_sg(chan, dst_sg, src_sg, dst_nents, dma_flags);
+}
+
 static int d40_prep_slave_sg_log(struct d40_desc *d40d,
                                 struct d40_chan *d40c,
                                 struct scatterlist *sgl,
@@ -2345,6 +2357,7 @@ static int __init d40_dmaengine_init(struct d40_base *base,
        base->dma_slave.device_alloc_chan_resources = d40_alloc_chan_resources;
        base->dma_slave.device_free_chan_resources = d40_free_chan_resources;
        base->dma_slave.device_prep_dma_memcpy = d40_prep_memcpy;
+       base->dma_slave.device_prep_dma_sg = d40_prep_sg;
        base->dma_slave.device_prep_slave_sg = d40_prep_slave_sg;
        base->dma_slave.device_tx_status = d40_tx_status;
        base->dma_slave.device_issue_pending = d40_issue_pending;
@@ -2365,10 +2378,12 @@ static int __init d40_dmaengine_init(struct d40_base *base,
 
        dma_cap_zero(base->dma_memcpy.cap_mask);
        dma_cap_set(DMA_MEMCPY, base->dma_memcpy.cap_mask);
+       dma_cap_set(DMA_SG, base->dma_slave.cap_mask);
 
        base->dma_memcpy.device_alloc_chan_resources = d40_alloc_chan_resources;
        base->dma_memcpy.device_free_chan_resources = d40_free_chan_resources;
        base->dma_memcpy.device_prep_dma_memcpy = d40_prep_memcpy;
+       base->dma_slave.device_prep_dma_sg = d40_prep_sg;
        base->dma_memcpy.device_prep_slave_sg = d40_prep_slave_sg;
        base->dma_memcpy.device_tx_status = d40_tx_status;
        base->dma_memcpy.device_issue_pending = d40_issue_pending;
@@ -2395,10 +2410,12 @@ static int __init d40_dmaengine_init(struct d40_base *base,
        dma_cap_zero(base->dma_both.cap_mask);
        dma_cap_set(DMA_SLAVE, base->dma_both.cap_mask);
        dma_cap_set(DMA_MEMCPY, base->dma_both.cap_mask);
+       dma_cap_set(DMA_SG, base->dma_slave.cap_mask);
 
        base->dma_both.device_alloc_chan_resources = d40_alloc_chan_resources;
        base->dma_both.device_free_chan_resources = d40_free_chan_resources;
        base->dma_both.device_prep_dma_memcpy = d40_prep_memcpy;
+       base->dma_slave.device_prep_dma_sg = d40_prep_sg;
        base->dma_both.device_prep_slave_sg = d40_prep_slave_sg;
        base->dma_both.device_tx_status = d40_tx_status;
        base->dma_both.device_issue_pending = d40_issue_pending;