dmaengine: move last completed cookie into generic dma_chan structure
Every DMA engine implementation declares a last completed dma cookie
in their private dma channel structures. This is pointless, and
forces driver specific code. Move this out into the common dma_chan
structure.
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/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index 513184b..e510447 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -971,7 +971,7 @@
u32 bytesleft = 0;
last_used = plchan->chan.cookie;
- last_complete = plchan->lc;
+ last_complete = plchan->chan.completed_cookie;
ret = dma_async_is_complete(cookie, last_complete, last_used);
if (ret == DMA_SUCCESS) {
@@ -983,7 +983,7 @@
* This cookie not complete yet
*/
last_used = plchan->chan.cookie;
- last_complete = plchan->lc;
+ last_complete = plchan->chan.completed_cookie;
/* Get number of bytes left in the active transactions and queue */
bytesleft = pl08x_getbytes_chan(plchan);
@@ -1543,7 +1543,7 @@
if (txd) {
/* Update last completed */
- plchan->lc = txd->tx.cookie;
+ plchan->chan.completed_cookie = txd->tx.cookie;
}
/* If a new descriptor is queued, set it up plchan->at is NULL here */
@@ -1725,7 +1725,7 @@
chan->chan.device = dmadev;
chan->chan.cookie = 0;
- chan->lc = 0;
+ chan->chan.completed_cookie = 0;
spin_lock_init(&chan->lock);
INIT_LIST_HEAD(&chan->pend_list);