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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-09-28 22:45:16 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-09-28 22:45:16 +0200 |
| commit | 4092dc8f0bcc0963c045460157107d7461a094d7 (patch) | |
| tree | 2f659d7ce5b5ea8e9fc27292e69f0b2a84caee04 | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vir... (diff) | |
| parent | dmaengine: omap-dma: Restore the CLINK_CTRL in resume path (diff) | |
| download | linux-4092dc8f0bcc0963c045460157107d7461a094d7.tar.xz linux-4092dc8f0bcc0963c045460157107d7461a094d7.zip | |
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes from Vinod Koul:
"Two small fixes for omap dmaengine driver which fixes cyclic suspend
and resume"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: omap-dma: Restore the CLINK_CTRL in resume path
dmaengine: omap-dma: Add memory barrier to dma_resume path
| -rw-r--r-- | drivers/dma/omap-dma.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c index 4cf7d9a950d7..bbea8243f9e8 100644 --- a/drivers/dma/omap-dma.c +++ b/drivers/dma/omap-dma.c @@ -1017,6 +1017,11 @@ static int omap_dma_resume(struct omap_chan *c) return -EINVAL; if (c->paused) { + mb(); + + /* Restore channel link register */ + omap_dma_chan_write(c, CLNK_CTRL, c->desc->clnk_ctrl); + omap_dma_start(c, c->desc); c->paused = false; } |