[PATCH v2] dmaengine: edma: Implement device_synchronize callback

[Peter Ujfalusi]

We need the callback to support the dmaengine_terminate_sync().

Signed-off-by: Peter Ujfalusi <peter.ujfal...@ti.com>
---
 drivers/dma/edma.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 2dac314a2d7a..290e1a721c5b 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -869,6 +869,13 @@ static int edma_terminate_all(struct dma_chan *chan)
        return 0;
 }
 
+static void edma_synchronize(struct dma_chan *chan)
+{
+       struct edma_chan *echan = to_edma_chan(chan);
+
+       vchan_synchronize(&echan->vchan);
+}
+
 static int edma_slave_config(struct dma_chan *chan,
        struct dma_slave_config *cfg)
 {
@@ -1808,6 +1815,7 @@ static void edma_dma_init(struct edma_cc *ecc, bool 
legacy_mode)
        s_ddev->device_pause = edma_dma_pause;
        s_ddev->device_resume = edma_dma_resume;
        s_ddev->device_terminate_all = edma_terminate_all;
+       s_ddev->device_synchronize = edma_synchronize;
 
        s_ddev->src_addr_widths = EDMA_DMA_BUSWIDTHS;
        s_ddev->dst_addr_widths = EDMA_DMA_BUSWIDTHS;
@@ -1833,6 +1841,7 @@ static void edma_dma_init(struct edma_cc *ecc, bool 
legacy_mode)
                m_ddev->device_pause = edma_dma_pause;
                m_ddev->device_resume = edma_dma_resume;
                m_ddev->device_terminate_all = edma_terminate_all;
+               m_ddev->device_synchronize = edma_synchronize;
 
                m_ddev->src_addr_widths = EDMA_DMA_BUSWIDTHS;
                m_ddev->dst_addr_widths = EDMA_DMA_BUSWIDTHS;
-- 
2.7.1