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| author |   Dave Jiang <dave.jiang@intel.com> | 2016-07-20 14:13:09 -0700 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2016-08-08 08:11:43 +0530 |
| commit | 73fc45e3ce7838e6f47228dd51144c492931e8ad (patch) | |
| tree | 5bfd2b0e8184357e6f5eedc2bae5c98a34409a3d /drivers/dma/sh | |
| parent | dmengine: xilinx_dma: convert callback to helper function (diff) | |
| download | linux-dev-73fc45e3ce7838e6f47228dd51144c492931e8ad.tar.xz linux-dev-73fc45e3ce7838e6f47228dd51144c492931e8ad.zip | |
dmaengine: sh_shdma-base: convert callback to helper function
This is in preperation of moving to a callback that provides results to the
callback for the transaction. The conversion will maintain current behavior
and the driver must convert to new callback mechanism at a later time in
order to receive results.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/sh')
| -rw-r--r-- | drivers/dma/sh/shdma-base.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c index 10fcabad80f3..12fa48e380cf 100644 --- a/drivers/dma/sh/shdma-base.c +++ b/drivers/dma/sh/shdma-base.c @@ -330,10 +330,11 @@ static dma_async_tx_callback __ld_cleanup(struct shdma_chan *schan, bool all) bool head_acked = false; dma_cookie_t cookie = 0; dma_async_tx_callback callback = NULL; - void *param = NULL; + struct dmaengine_desc_callback cb; unsigned long flags; LIST_HEAD(cyclic_list); + memset(&cb, 0, sizeof(cb)); spin_lock_irqsave(&schan->chan_lock, flags); list_for_each_entry_safe(desc, _desc, &schan->ld_queue, node) { struct dma_async_tx_descriptor *tx = &desc->async_tx; @@ -367,8 +368,8 @@ static dma_async_tx_callback __ld_cleanup(struct shdma_chan *schan, bool all) /* Call callback on the last chunk */ if (desc->mark == DESC_COMPLETED && tx->callback) { desc->mark = DESC_WAITING; + dmaengine_desc_get_callback(tx, &cb); callback = tx->callback; - param = tx->callback_param; dev_dbg(schan->dev, "descriptor #%d@%p on %d callback\n", tx->cookie, tx, schan->id); BUG_ON(desc->chunks != 1); @@ -430,8 +431,7 @@ static dma_async_tx_callback __ld_cleanup(struct shdma_chan *schan, bool all) spin_unlock_irqrestore(&schan->chan_lock, flags); - if (callback) - callback(param); + dmaengine_desc_callback_invoke(&cb, NULL); return callback; } @@ -885,9 +885,9 @@ bool shdma_reset(struct shdma_dev *sdev) /* Complete all */ list_for_each_entry(sdesc, &dl, node) { struct dma_async_tx_descriptor *tx = &sdesc->async_tx; + sdesc->mark = DESC_IDLE; - if (tx->callback) - tx->callback(tx->callback_param); + dmaengine_desc_get_callback_invoke(tx, NULL); } spin_lock(&schan->chan_lock); |