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dmaengine: idma64: Support dmaengine_terminate_sync() 

It appears that the driver misses the support of dmaengine_terminate_sync().
Since many of callers expects this behaviour implement the new
device_synchronize() callback to allow proper synchronization when stopping
a channel.

Fixes: b36f09c3c4 ("dmaengine: Add transfer termination synchronization support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Andy Shevchenko 2018-07-10 14:49:42 +03:00 committed by Vinod Koul
parent 2abc66cd49
commit bbacb8e78a
1 changed files with 8 additions and 0 deletions
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8
drivers/dma/idma64.c
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@ -496,6 +496,13 @@ static int idma64_terminate_all(struct dma_chan *chan)
return 0;
}
static void idma64_synchronize(struct dma_chan *chan)
{
struct idma64_chan *idma64c = to_idma64_chan(chan);
vchan_synchronize(&idma64c->vchan);
}
static int idma64_alloc_chan_resources(struct dma_chan *chan)
{
struct idma64_chan *idma64c = to_idma64_chan(chan);
@ -583,6 +590,7 @@ static int idma64_probe(struct idma64_chip *chip)
idma64->dma.device_pause = idma64_pause;
idma64->dma.device_resume = idma64_resume;
idma64->dma.device_terminate_all = idma64_terminate_all;
idma64->dma.device_synchronize = idma64_synchronize;
idma64->dma.src_addr_widths = IDMA64_BUSWIDTHS;
idma64->dma.dst_addr_widths = IDMA64_BUSWIDTHS;