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Diffstat (limited to 'drivers/dma/mv_xor.c')
-rw-r--r--drivers/dma/mv_xor.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 97c8611f..f450fe8 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1070,6 +1070,14 @@ out:
return err;
}
+/* This driver does not implement any of the optional DMA operations. */
+static int
+mv_xor_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
+ unsigned long arg)
+{
+ return -ENOSYS;
+}
+
static int mv_xor_channel_remove(struct mv_xor_chan *mv_chan)
{
struct dma_chan *chan, *_chan;
@@ -1130,6 +1138,7 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
dma_dev->device_free_chan_resources = mv_xor_free_chan_resources;
dma_dev->device_tx_status = mv_xor_status;
dma_dev->device_issue_pending = mv_xor_issue_pending;
+ dma_dev->device_control = mv_xor_control;
dma_dev->dev = &pdev->dev;
/* set prep routines based on capability */
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