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authorRussell King - ARM Linux <linux@arm.linux.org.uk>2012-03-06 22:34:06 +0000
committerVinod Koul <vinod.koul@linux.intel.com>2012-03-13 11:36:06 +0530
commit4d4e58de32a192fea65ab84509d17d199bd291c8 (patch)
treebe35531778c9cc6bee73beb94d07e176a6f3599d /drivers/dma/coh901318.c
parent08714f60b0fc6ea3a060b69b32e77139f14e6045 (diff)
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>
Diffstat (limited to 'drivers/dma/coh901318.c')
-rw-r--r--drivers/dma/coh901318.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index d65a718c0f9b..521434bc3130 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c
@@ -59,7 +59,6 @@ struct coh901318_base {
struct coh901318_chan {
spinlock_t lock;
int allocated;
- int completed;
int id;
int stopped;
@@ -705,7 +704,7 @@ static void dma_tasklet(unsigned long data)
callback_param = cohd_fin->desc.callback_param;
/* sign this job as completed on the channel */
- cohc->completed = cohd_fin->desc.cookie;
+ cohc->chan.completed_cookie = cohd_fin->desc.cookie;
/* release the lli allocation and remove the descriptor */
coh901318_lli_free(&cohc->base->pool, &cohd_fin->lli);
@@ -929,7 +928,7 @@ static int coh901318_alloc_chan_resources(struct dma_chan *chan)
coh901318_config(cohc, NULL);
cohc->allocated = 1;
- cohc->completed = chan->cookie = 1;
+ chan->completed_cookie = chan->cookie = 1;
spin_unlock_irqrestore(&cohc->lock, flags);
@@ -1169,7 +1168,7 @@ coh901318_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
dma_cookie_t last_complete;
int ret;
- last_complete = cohc->completed;
+ last_complete = chan->completed_cookie;
last_used = chan->cookie;
ret = dma_async_is_complete(cookie, last_complete, last_used);