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authorRabin Vincent <rabin.vincent@stericsson.com>2013-05-27 16:03:40 +0200
committerVinod Koul <vinod.koul@intel.com>2013-05-27 19:50:32 +0530
commit9ecb41bd8cf002fd8f3e063db4df81647ddd623c (patch)
treee20ce03e504fad666359c65fb9224d806c4c6fad /drivers/dma
parente4aa937ec75df0eea0bee03bffa3303ad36c986b (diff)
downloadop-kernel-dev-9ecb41bd8cf002fd8f3e063db4df81647ddd623c.zip
op-kernel-dev-9ecb41bd8cf002fd8f3e063db4df81647ddd623c.tar.gz
dmaengine: ste_dma40: fix pm runtime ref counting
The pm runtime reference counting of the driver is broken for the case when there is more than one transfer queued, leading to the device being runtime suspend while active. Fix it. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: stable@vger.kernel.org Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/ste_dma40.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 1734fee..71bf4ec 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -1566,10 +1566,12 @@ static void dma_tc_handle(struct d40_chan *d40c)
return;
}
- if (d40_queue_start(d40c) == NULL)
+ if (d40_queue_start(d40c) == NULL) {
d40c->busy = false;
- pm_runtime_mark_last_busy(d40c->base->dev);
- pm_runtime_put_autosuspend(d40c->base->dev);
+
+ pm_runtime_mark_last_busy(d40c->base->dev);
+ pm_runtime_put_autosuspend(d40c->base->dev);
+ }
d40_desc_remove(d40d);
d40_desc_done(d40c, d40d);
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