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| author | Russell King - ARM Linux <linux@arm.linux.org.uk> | 2012-03-06 23:35:27 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-03-13 07:07:14 +0100 |
| commit | 96a2af41c78b1fbb1f567a3486bdc63f7b31c5fd (patch) | |
| tree | d977c6b2ff1a23dfd523e70315ebe976a3f3f079 /drivers/dma/mpc512x_dma.c | |
| parent | dmaengine: provide a common function for completing a dma descriptor (diff) | |
| download | linux-96a2af41c78b1fbb1f567a3486bdc63f7b31c5fd.tar.xz linux-96a2af41c78b1fbb1f567a3486bdc63f7b31c5fd.zip | |
dmaengine: consolidate tx_status functions
Now that we have the completed cookie in the dma_chan structure, we
can consolidate the tx_status functions by providing a function to set
the txstate structure and returning the DMA status. We also provide
a separate helper to set the residue for cookies which are still in
progress.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
[imx-sdma.c & mxs-dma.c]
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma/mpc512x_dma.c')
| -rw-r--r-- | drivers/dma/mpc512x_dma.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c index 0253d5aecdb1..138271591ae9 100644 --- a/drivers/dma/mpc512x_dma.c +++ b/drivers/dma/mpc512x_dma.c @@ -557,17 +557,14 @@ mpc_dma_tx_status(struct dma_chan *chan, dma_cookie_t cookie, struct dma_tx_state *txstate) { struct mpc_dma_chan *mchan = dma_chan_to_mpc_dma_chan(chan); + enum dma_status ret; unsigned long flags; - dma_cookie_t last_used; - dma_cookie_t last_complete; spin_lock_irqsave(&mchan->lock, flags); - last_used = mchan->chan.cookie; - last_complete = mchan->chan.completed_cookie; + ret = dma_cookie_status(chan, cookie, txstate); spin_unlock_irqrestore(&mchan->lock, flags); - dma_set_tx_state(txstate, last_complete, last_used, 0); - return dma_async_is_complete(cookie, last_complete, last_used); + return ret; } /* Prepare descriptor for memory to memory copy */ |