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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2018-07-10 14:49:08 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2018-07-10 21:10:44 +0530 |
| commit | 2abc66cd499aa16876e45c6438788902f7d1ce22 (patch) | |
| tree | 6872a8714317318e59a88628cb5bd2ace2ce1c41 /drivers/dma/hsu | |
| parent | ce397d215ccd07b8ae3f71db689aedb85d56ab40 (diff) | |
| download | linux-2abc66cd499aa16876e45c6438788902f7d1ce22.tar.bz2 | |
dmaengine: hsu: 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/hsu')
| -rw-r--r-- | drivers/dma/hsu/hsu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/dma/hsu/hsu.c b/drivers/dma/hsu/hsu.c index 29d04ca71d52..202ffa9f7611 100644 --- a/drivers/dma/hsu/hsu.c +++ b/drivers/dma/hsu/hsu.c @@ -413,6 +413,13 @@ static void hsu_dma_free_chan_resources(struct dma_chan *chan) vchan_free_chan_resources(to_virt_chan(chan)); } +static void hsu_dma_synchronize(struct dma_chan *chan) +{ + struct hsu_dma_chan *hsuc = to_hsu_dma_chan(chan); + + vchan_synchronize(&hsuc->vchan); +} + int hsu_dma_probe(struct hsu_dma_chip *chip) { struct hsu_dma *hsu; @@ -459,6 +466,7 @@ int hsu_dma_probe(struct hsu_dma_chip *chip) hsu->dma.device_pause = hsu_dma_pause; hsu->dma.device_resume = hsu_dma_resume; hsu->dma.device_terminate_all = hsu_dma_terminate_all; + hsu->dma.device_synchronize = hsu_dma_synchronize; hsu->dma.src_addr_widths = HSU_DMA_BUSWIDTHS; hsu->dma.dst_addr_widths = HSU_DMA_BUSWIDTHS; |