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| author | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2012-05-27 20:58:20 +0000 |
|---|---|---|
| committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2012-05-27 20:58:20 +0000 |
| commit | d85d135d8babbc917b370f36cbc02b7b4a2f2d99 (patch) | |
| tree | 2f06e02940d87099670aa31459ad1ab41a1ca036 /drivers/dma/dmaengine.c | |
| parent | 5e7b911f9a3e582635801675b7fe935b16cd4af5 (diff) | |
| parent | e92a5b28f71aea01b281f9c89d97a4bc5b24748f (diff) | |
Merge tag 'omapdss-for-3.5' of git://github.com/tomba/linux into fbdev-next
Omapdss driver changes for 3.5 merge window.
Lots of normal development commits, but perhaps most notable changes are:
* HDMI rework to properly decouple the HDMI audio part from the HDMI video part.
* Restructure omapdss core driver so that it's possible to implement device
tree support. This included changing how platform data is passed to the
drivers, changing display device registration and improving the panel driver's
ability to configure the underlying video output interface.
* Basic support for DSI packet interleaving
Diffstat (limited to 'drivers/dma/dmaengine.c')
| -rw-r--r-- | drivers/dma/dmaengine.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 767bcc31b365..2397f6f451b1 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -332,6 +332,20 @@ struct dma_chan *dma_find_channel(enum dma_transaction_type tx_type) } EXPORT_SYMBOL(dma_find_channel); +/* + * net_dma_find_channel - find a channel for net_dma + * net_dma has alignment requirements + */ +struct dma_chan *net_dma_find_channel(void) +{ + struct dma_chan *chan = dma_find_channel(DMA_MEMCPY); + if (chan && !is_dma_copy_aligned(chan->device, 1, 1, 1)) + return NULL; + + return chan; +} +EXPORT_SYMBOL(net_dma_find_channel); + /** * dma_issue_pending_all - flush all pending operations across all channels */ |