linux-toradex.git/drivers/dma/coh901318.c, branch v4.4.95

dmaengine: Add an enum for the dmaengine alignment constraints

2015-08-05T05:23:52+00:00

Most drivers need to set constraints on the buffer alignment for async tx
operations. However, even though it is documented, some drivers either use
a defined constant that is not matching what the alignment variable expects
(like DMA_BUSWIDTH_* constants) or fill the alignment in bytes instead of
power of two.

Add a new enum for these alignments that matches what the framework
expects, and convert the drivers to it.

Signed-off-by: Maxime Ripard 
Signed-off-by: Vinod Koul

dmaengine: coh901318: fix function return types build warnings

2015-01-18T14:31:36+00:00

A recent patch that removed coh901318_control() replaced it
with a number of pointers to existing functions, but those
unfortunately have the wrong return  type and need to be
changed to return an 'int' with an error value rather than
a 'void' to avoid these build warnings:

drivers/dma/coh901318.c:2697:32: warning: assignment from incompatible pointer type
  base->dma_slave.device_config = coh901318_dma_set_runtimeconfig;
                                ^
drivers/dma/coh901318.c:2698:31: warning: assignment from incompatible pointer type
  base->dma_slave.device_pause = coh901318_pause;
                               ^
drivers/dma/coh901318.c:2699:32: warning: assignment from incompatible pointer type
  base->dma_slave.device_resume = coh901318_resume

The coh901318_base_init function has the correct return type
already, but needs to be marked 'static' to avoid a sparse
warning about a missing declaration.

Signed-off-by: Arnd Bergmann 
Fixes: 6782af118b6c ("dmaengine: coh901318: Split device_control")
Acked-by: Linus Walleij 
Signed-off-by: Vinod Koul

dmaengine: coh901318: Split device_control

2014-12-22T06:58:57+00:00

Split the device_control callback of the ST-Ericsson COH901318 DMA driver to
make use of the newly introduced callbacks, that will eventually be used to
retrieve slave capabilities.

Signed-off-by: Maxime Ripard 
Acked-by: Linus Walleij 
Signed-off-by: Vinod Koul

dmaengine: coh901318: use dmaengine_terminate_all() API

2014-10-15T16:00:59+00:00

The drivers should use dmaengine_terminate_all() API instead of accessing
the device_control which will be deprecated soon

Signed-off-by: Vinod Koul

dmaengine: coh901318: use DMA_COMPLETE for dma completion status

2013-10-25T05:45:56+00:00

Acked-by: Dan Williams 
Acked-by: Linus Walleij 
Signed-off-by: Vinod Koul

dma: coh901318: remove deprecated IRQF_DISABLED

2013-10-13T14:51:34+00:00

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker 
Signed-off-by: Vinod Koul

coh901318: don't open-code simple_read_from_buffer()

2013-09-04T02:52:46+00:00

... and BTW, failing copy_to_user() means EFAULT, not EINVAL

Signed-off-by: Al Viro

dma: coh901318: add devicetree support

2013-06-17T11:54:27+00:00

This adds support for probing the COH 901 318 DMA controller
and channels from the device tree.

Contains portions of a sketch patch from Arnd Bergmann.

Cc: Arnd Bergmann 
Acked-by: Vinod Koul 
Signed-off-by: Linus Walleij

dma: Remove erroneous exit and exit_p() references

2013-04-15T04:21:16+00:00

Removing the annotation with __exit and referencing with __exit_p()
present in dma driver module remove hooks.

Part of the __devexit and __devexit_p() purge.

Signed-off-by: Maxin B. John 
Acked-by: Linus Walleij 
Signed-off-by: Vinod Koul

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26T17:24:48+00:00

Pull slave-dmaengine updates from Vinod Koul:
 "This is fairly big pull by my standards as I had missed last merge
  window.  So we have the support for device tree for slave-dmaengine,
  large updates to dw_dmac driver from Andy for reusing on different
  architectures.  Along with this we have fixes on bunch of the drivers"

Fix up trivial conflicts, usually due to #include line movement next to
each other.

* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (111 commits)
  Revert "ARM: SPEAr13xx: Pass DW DMAC platform data from DT"
  ARM: dts: pl330: Add #dma-cells for generic dma binding support
  DMA: PL330: Register the DMA controller with the generic DMA helpers
  DMA: PL330: Add xlate function
  DMA: PL330: Add new pl330 filter for DT case.
  dma: tegra20-apb-dma: remove unnecessary assignment
  edma: do not waste memory for dma_mask
  dma: coh901318: set residue only if dma is in progress
  dma: coh901318: avoid unbalanced locking
  dmaengine.h: remove redundant else keyword
  dma: of-dma: protect list write operation by spin_lock
  dmaengine: ste_dma40: do not remove descriptors for cyclic transfers
  dma: of-dma.c: fix memory leakage
  dw_dmac: apply default dma_mask if needed
  dmaengine: ioat - fix spare sparse complain
  dmaengine: move drivers/of/dma.c -> drivers/dma/of-dma.c
  ioatdma: fix race between updating ioat->head and IOAT_COMPLETION_PENDING
  dw_dmac: add support for Lynxpoint DMA controllers
  dw_dmac: return proper residue value
  dw_dmac: fill individual length of descriptor
  ...