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>
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index b282630..8a32974 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -996,26 +996,20 @@
spin_lock_irqsave(&atchan->lock, flags);
- last_complete = chan->completed_cookie;
- last_used = chan->cookie;
-
- ret = dma_async_is_complete(cookie, last_complete, last_used);
+ ret = dma_cookie_status(chan, cookie, txstate);
if (ret != DMA_SUCCESS) {
atc_cleanup_descriptors(atchan);
- last_complete = chan->completed_cookie;
- last_used = chan->cookie;
-
- ret = dma_async_is_complete(cookie, last_complete, last_used);
+ ret = dma_cookie_status(chan, cookie, txstate);
}
+ last_complete = chan->completed_cookie;
+ last_used = chan->cookie;
+
spin_unlock_irqrestore(&atchan->lock, flags);
if (ret != DMA_SUCCESS)
- dma_set_tx_state(txstate, last_complete, last_used,
- atc_first_active(atchan)->len);
- else
- dma_set_tx_state(txstate, last_complete, last_used, 0);
+ dma_set_residue(txstate, atc_first_active(atchan)->len);
if (atc_chan_is_paused(atchan))
ret = DMA_PAUSED;