Messages in this thread Patch in this message | | | From | Peter Ujfalusi <> | Subject | [PATCH v2 1/2] dmaengine: omap-dma: Add memory barrier to dma_resume path | Date | Tue, 16 Sep 2014 16:53:48 +0300 |
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Add mb() call to resume path to ensure the necessary barrier. Resume can happen after waking up from suspend for example.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> --- drivers/dma/omap-dma.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c index 4cf7d9a950d7..c01ea505ee7c 100644 --- a/drivers/dma/omap-dma.c +++ b/drivers/dma/omap-dma.c @@ -1017,6 +1017,8 @@ static int omap_dma_resume(struct omap_chan *c) return -EINVAL; if (c->paused) { + mb(); + omap_dma_start(c, c->desc); c->paused = false; } -- 2.1.0
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