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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-07 00:13:54 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-07 00:13:54 (GMT) |
commit | 553911c67eb701d46e2dcd073f603c6f6546c38b (patch) | |
tree | ad5169ecc77a8e647550e2704b64e9a2a9ab3bce /drivers/dma/dw | |
parent | 521f3970853a4b2ff7f833763532bdba2ea11257 (diff) | |
parent | c84750906b4818d4929fbf73a4ae6c113b94f52b (diff) | |
download | linux-553911c67eb701d46e2dcd073f603c6f6546c38b.tar.xz |
Merge tag 'dmaengine-4.9-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul:
"This is bit large pile of code which bring in some nice additions:
- Error reporting: we have added a new mechanism for users of
dmaenegine to register a callback_result which tells them the
result of the dma transaction. Right now only one user (ntb) is
using it.
- As we discussed on KS mailing list and pointed out NO_IRQ has no
place in kernel, this also remove NO_IRQ from dmaengine subsystem
(both arm and ppc users)
- Support for IOMMU slave transfers and its implementation for arm.
- To get better build coverage, enable COMPILE_TEST for bunch of
driver, and fix the warning and sparse complaints on these.
- Apart from above, usual updates spread across drivers"
* tag 'dmaengine-4.9-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (169 commits)
async_pq_val: fix DMA memory leak
dmaengine: virt-dma: move function declarations
dmaengine: omap-dma: Enable burst and data pack for SG
DT: dmaengine: rcar-dmac: document R8A7743/5 support
dmaengine: fsldma: Unmap region obtained by of_iomap
dmaengine: jz4780: fix resource leaks on error exit return
dma-debug: fix ia64 build, use PHYS_PFN
dmaengine: coh901318: fix integer overflow when shifting more than 32 places
dmaengine: edma: avoid uninitialized variable use
dma-mapping: fix m32r build warning
dma-mapping: fix ia64 build, use PHYS_PFN
dmaengine: ti-dma-crossbar: enable COMPILE_TEST
dmaengine: omap-dma: enable COMPILE_TEST
dmaengine: edma: enable COMPILE_TEST
dmaengine: ti-dma-crossbar: Fix of_device_id data parameter usage
dmaengine: ti-dma-crossbar: Correct type for of_find_property() third parameter
dmaengine/ARM: omap-dma: Fix the DMAengine compile test on non OMAP configs
dmaengine: edma: Rename set_bits and remove unused clear_bits helper
dmaengine: edma: Use correct type for of_find_property() third parameter
dmaengine: edma: Fix of_device_id data parameter usage (legacy vs TPCC)
...
Diffstat (limited to 'drivers/dma/dw')
-rw-r--r-- | drivers/dma/dw/core.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c index da18b18..c2c0a61 100644 --- a/drivers/dma/dw/core.c +++ b/drivers/dma/dw/core.c @@ -274,20 +274,19 @@ static void dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc, bool callback_required) { - dma_async_tx_callback callback = NULL; - void *param = NULL; struct dma_async_tx_descriptor *txd = &desc->txd; struct dw_desc *child; unsigned long flags; + struct dmaengine_desc_callback cb; dev_vdbg(chan2dev(&dwc->chan), "descriptor %u complete\n", txd->cookie); spin_lock_irqsave(&dwc->lock, flags); dma_cookie_complete(txd); - if (callback_required) { - callback = txd->callback; - param = txd->callback_param; - } + if (callback_required) + dmaengine_desc_get_callback(txd, &cb); + else + memset(&cb, 0, sizeof(cb)); /* async_tx_ack */ list_for_each_entry(child, &desc->tx_list, desc_node) @@ -296,8 +295,7 @@ dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc, dwc_desc_put(dwc, desc); spin_unlock_irqrestore(&dwc->lock, flags); - if (callback) - callback(param); + dmaengine_desc_callback_invoke(&cb, NULL); } static void dwc_complete_all(struct dw_dma *dw, struct dw_dma_chan *dwc) |