diff options
| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2018-07-10 14:49:42 +0300 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2018-07-10 21:10:44 +0530 |
| commit | bbacb8e78a3b29ebdbb6af7d54fcf25d3f1c248f (patch) | |
| tree | d219e5da869dff27b1801930a02e252673169cc8 /drivers/dma | |
| parent | dmaengine: hsu: Support dmaengine_terminate_sync() (diff) | |
| download | linux-dev-bbacb8e78a3b29ebdbb6af7d54fcf25d3f1c248f.tar.xz linux-dev-bbacb8e78a3b29ebdbb6af7d54fcf25d3f1c248f.zip | |
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: b36f09c3c441 ("dmaengine: Add transfer termination synchronization support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/idma64.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c index e5c911200bdb..1fbf9cb9b742 100644 --- a/drivers/dma/idma64.c +++ b/drivers/dma/idma64.c @@ -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; |