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Date: Tue, 29 Dec 2020 12:47:01 +0800 From: Sia Jee Heng <jee.heng.sia@...el.com> To: vkoul@...nel.org, Eugeniy.Paltsev@...opsys.com, robh+dt@...nel.org Cc: andriy.shevchenko@...ux.intel.com, dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org Subject: [PATCH v8 04/16] dmaengine: dw-axi-dmac: Add device_synchronize() callback Add support for device_synchronize() callback function to sync with dmaengine_terminate_sync(). Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> Signed-off-by: Sia Jee Heng <jee.heng.sia@...el.com> --- drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c index 3737e1c3c793..241ab7a24e2a 100644 --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c @@ -347,6 +347,13 @@ static void dma_chan_issue_pending(struct dma_chan *dchan) 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) { 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_prep_dma_memcpy = dma_chan_prep_dma_memcpy; + dw->dma.device_synchronize = dw_axi_dma_synchronize; platform_set_drvdata(pdev, chip); -- 2.18.0
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