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authorHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-07-08 11:58:58 -0700
committerDan Williams <dan.j.williams@intel.com>2008-07-08 11:58:58 -0700
commit848c536a37b8db4e461f14ca15fe29850151c822 (patch)
treef4a88e92e31de28511e3a3de99200a77d2613dae /drivers/dma/mv_xor.c
parent4a776f0aa922a552460192c07b56f4fe9cd82632 (diff)
downloadop-kernel-dev-848c536a37b8db4e461f14ca15fe29850151c822.zip
op-kernel-dev-848c536a37b8db4e461f14ca15fe29850151c822.tar.gz
dmaengine: Add dma_client parameter to device_alloc_chan_resources
A DMA controller capable of doing slave transfers may need to know a few things about the slave when preparing the channel. We don't want to add this information to struct dma_channel since the channel hasn't yet been bound to a client at this point. Instead, pass a reference to the client requesting the channel to the driver's device_alloc_chan_resources hook so that it can pick the necessary information from the dma_client struct by itself. [dan.j.williams@intel.com: fixed up fsldma and mv_xor] Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/mv_xor.c')
-rw-r--r--drivers/dma/mv_xor.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index f0c123c..8239cfd 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -588,7 +588,8 @@ submit_done:
}
/* returns the number of allocated descriptors */
-static int mv_xor_alloc_chan_resources(struct dma_chan *chan)
+static int mv_xor_alloc_chan_resources(struct dma_chan *chan,
+ struct dma_client *client)
{
char *hw_desc;
int idx;
@@ -938,7 +939,7 @@ static int __devinit mv_xor_memcpy_self_test(struct mv_xor_device *device)
dma_chan = container_of(device->common.channels.next,
struct dma_chan,
device_node);
- if (mv_xor_alloc_chan_resources(dma_chan) < 1) {
+ if (mv_xor_alloc_chan_resources(dma_chan, NULL) < 1) {
err = -ENODEV;
goto out;
}
@@ -1033,7 +1034,7 @@ mv_xor_xor_self_test(struct mv_xor_device *device)
dma_chan = container_of(device->common.channels.next,
struct dma_chan,
device_node);
- if (mv_xor_alloc_chan_resources(dma_chan) < 1) {
+ if (mv_xor_alloc_chan_resources(dma_chan, NULL) < 1) {
err = -ENODEV;
goto out;
}
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