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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/ste_dma40.c
parente4aa937ec75df0eea0bee03bffa3303ad36c986b (diff)
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/ste_dma40.c')
-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 1734feec47b..71bf4ec300e 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);