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dmaengine: dw-axi-dmac: Add device_synchronize() callback

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Add support for device_synchronize() callback function to sync with
dmaengine_terminate_sync().

Signed-off-by: Sia Jee Heng <jee.heng.sia@intel.com>
Tested-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Link: https://lore.kernel.org/r/20210125013255.25799-5-jee.heng.sia@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Sia Jee Heng 2021-01-25 09:32:42 +08:00 committed by Vinod Koul
parent 0b9d2fb368
commit 67b2e39f4a
1 changed files with 8 additions and 0 deletions
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8
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
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@ -347,6 +347,13 @@ static void dma_chan_issue_pending(struct dma_chan *dchan)
spin_unlock_irqrestore(&chan->vc.lock, flags); spin_unlock_irqrestore(&chan->vc.lock, flags);
} }
static void dw_axi_dma_synchronize(struct dma_chan *dchan)
{
struct axi_dma_chan *chan = dchan_to_axi_dma_chan(dchan);
vchan_synchronize(&chan->vc);
}
static int dma_chan_alloc_chan_resources(struct dma_chan *dchan) static int dma_chan_alloc_chan_resources(struct dma_chan *dchan)
{ {
struct axi_dma_chan *chan = dchan_to_axi_dma_chan(dchan); struct axi_dma_chan *chan = dchan_to_axi_dma_chan(dchan);
@ -940,6 +947,7 @@ static int dw_probe(struct platform_device *pdev)
dw->dma.device_free_chan_resources = dma_chan_free_chan_resources; dw->dma.device_free_chan_resources = dma_chan_free_chan_resources;
dw->dma.device_prep_dma_memcpy = dma_chan_prep_dma_memcpy; dw->dma.device_prep_dma_memcpy = dma_chan_prep_dma_memcpy;
dw->dma.device_synchronize = dw_axi_dma_synchronize;
platform_set_drvdata(pdev, chip); platform_set_drvdata(pdev, chip);