linux-kernel - [PATCH] dmaengine: edma: Implement device

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Message-ID: <1455180872-2620-1-git-send-email-peter.ujfalusi@ti.com>
Date:	Thu, 11 Feb 2016 10:54:32 +0200
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	<vinod.koul@...el.com>
CC:	<linux-kernel@...r.kernel.org>, <dmaengine@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <nsekhar@...com>,
	<linux-omap@...r.kernel.org>
Subject: [PATCH] dmaengine: edma: Implement device_synchronize callback

We need the callback to support the dmaengine_terminate_sync().

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...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..ea0d919a3318 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 *c)
+{
+	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