From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: dmaengine@vger.kernel.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>,
Stefan Agner <stefan@agner.ch>, Chris Healy <cphealy@gmail.com>,
Vinod Koul <vkoul@kernel.org>,
linux-imx@nxp.com, linux-kernel@vger.kernel.org
Subject: [PATCH] dmaengine: fsl-edma: implement .device_synchronize callback
Date: Wed, 31 Jul 2019 10:36:59 -0700 [thread overview]
Message-ID: <20190731173659.14778-1-andrew.smirnov@gmail.com> (raw)
Implement .device_synchronize callback in order to be able to use
dmaengine_terminate_sync() and other primitives relying on said
callback.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: linux-imx@nxp.com
Cc: dmaengine@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/dma/fsl-edma.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/dma/fsl-edma.c b/drivers/dma/fsl-edma.c
index fcbad6ae954a..191fa71f67a3 100644
--- a/drivers/dma/fsl-edma.c
+++ b/drivers/dma/fsl-edma.c
@@ -20,6 +20,13 @@
#include "fsl-edma-common.h"
+static void fsl_edma_synchronize(struct dma_chan *chan)
+{
+ struct fsl_edma_chan *fsl_chan = to_fsl_edma_chan(chan);
+
+ vchan_synchronize(&fsl_chan->vchan);
+}
+
static irqreturn_t fsl_edma_tx_handler(int irq, void *dev_id)
{
struct fsl_edma_engine *fsl_edma = dev_id;
@@ -302,6 +309,7 @@ static int fsl_edma_probe(struct platform_device *pdev)
fsl_edma->dma_dev.device_pause = fsl_edma_pause;
fsl_edma->dma_dev.device_resume = fsl_edma_resume;
fsl_edma->dma_dev.device_terminate_all = fsl_edma_terminate_all;
+ fsl_edma->dma_dev.device_synchronize = fsl_edma_synchronize;
fsl_edma->dma_dev.device_issue_pending = fsl_edma_issue_pending;
fsl_edma->dma_dev.src_addr_widths = FSL_EDMA_BUSWIDTHS;
--
2.21.0
next reply other threads:[~2019-07-31 17:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-31 17:36 Andrey Smirnov [this message]
2019-08-08 13:32 ` [PATCH] dmaengine: fsl-edma: implement .device_synchronize callback Vinod Koul
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