linux.git/drivers/dma/dw, branch v3.15

dmaengine: dw: went back to plain {request,free}_irq() calls

2014-05-07T10:04:45+00:00

The commit dbde5c29 "dw_dmac: use devm_* functions to simplify code" turns
probe function to use devm_* helpers and simultaneously brings a regression. We
need to ensure irq is disabled, followed by ensuring that don't schedule any
more tasklets and then its safe to use tasklet_kill().

The free_irq() will ensure that the irq is disabled and also wait till all
scheduled interrupts are executed by invoking synchronize_irq(). So we need to
only do tasklet_kill() after invoking free_irq().

Signed-off-by: Andy Shevchenko 
Cc: stable@vger.kernel.org # v3.11+
Signed-off-by: Vinod Koul

dma: dw: Add suspend and resume handling for PCI mode DW_DMAC.

2014-03-26T06:22:03+00:00

This is to disable/enable DW_DMAC hw during late suspend/early resume.
Since DMA is providing service to other clients (eg: SPI, HSUART),
we need to ensure DMA suspends after the clients and resume
before the clients are active.

Signed-off-by: Chew, Chiau Ee 
Acked-by: Andy Shevchenko 
Acked-by: Viresh Kumar 
Signed-off-by: Vinod Koul

dma: dw: allocate memory in two stages in probe

2014-03-26T06:14:27+00:00

This makes the probe() function a little bit clearer.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Vinod Koul

dma: dw: remove leftovers in the comment blocks

2014-02-17T08:46:54+00:00

There is couple of leftovers in the comment blocks. This patch modifies the
comments accordingly.

There is no functional change.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Vinod Koul

dma: dw: add a PCI ID for Intel Haswell SoC

2014-02-11T18:04:32+00:00

In case of PCI mode the DMA controller has a specific ID. Put this ID to the
list of supported.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Vinod Koul

dma: dw: use %pad instead of casting dma_addr_t

2014-01-20T08:26:37+00:00

Since we have nice helper to print dma_addr_t values by reference we may use it
instead of explicit casting to a longest type.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Vinod Koul

dma: dw: join split up messages

2014-01-20T08:26:37+00:00

The joined messages are better to grep when debugging.

There is no functional change.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Vinod Koul

dma: dw: fix style of multiline comment

2014-01-20T08:26:37+00:00

Simple fix a style of the multiline comment.

There is no functional change.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Vinod Koul

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

2013-11-20T21:20:24+00:00

Pull slave-dmaengine changes from Vinod Koul:
 "This brings for slave dmaengine:

   - Change dma notification flag to DMA_COMPLETE from DMA_SUCCESS as
     dmaengine can only transfer and not verify validaty of dma
     transfers

   - Bunch of fixes across drivers:

      - cppi41 driver fixes from Daniel

      - 8 channel freescale dma engine support and updated bindings from
        Hongbo

      - msx-dma fixes and cleanup by Markus

   - DMAengine updates from Dan:

      - Bartlomiej and Dan finalized a rework of the dma address unmap
        implementation.

      - In the course of testing 1/ a collection of enhancements to
        dmatest fell out.  Notably basic performance statistics, and
        fixed / enhanced test control through new module parameters
        'run', 'wait', 'noverify', and 'verbose'.  Thanks to Andriy and
        Linus [Walleij] for their review.

      - Testing the raid related corner cases of 1/ triggered bugs in
        the recently added 16-source operation support in the ioatdma
        driver.

      - Some minor fixes / cleanups to mv_xor and ioatdma"

* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (99 commits)
  dma: mv_xor: Fix mis-usage of mmio 'base' and 'high_base' registers
  dma: mv_xor: Remove unneeded NULL address check
  ioat: fix ioat3_irq_reinit
  ioat: kill msix_single_vector support
  raid6test: add new corner case for ioatdma driver
  ioatdma: clean up sed pool kmem_cache
  ioatdma: fix selection of 16 vs 8 source path
  ioatdma: fix sed pool selection
  ioatdma: Fix bug in selftest after removal of DMA_MEMSET.
  dmatest: verbose mode
  dmatest: convert to dmaengine_unmap_data
  dmatest: add a 'wait' parameter
  dmatest: add basic performance metrics
  dmatest: add support for skipping verification and random data setup
  dmatest: use pseudo random numbers
  dmatest: support xor-only, or pq-only channels in tests
  dmatest: restore ability to start test at module load and init
  dmatest: cleanup redundant "dmatest: " prefixes
  dmatest: replace stored results mechanism, with uniform messages
  Revert "dmatest: append verify result to results"
  ...

Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine

2013-11-16T06:32:36+00:00

Pull dmaengine changes from Dan

1/ Bartlomiej and Dan finalized a rework of the dma address unmap
   implementation.

2/ In the course of testing 1/ a collection of enhancements to dmatest
   fell out.  Notably basic performance statistics, and fixed / enhanced
   test control through new module parameters 'run', 'wait', 'noverify',
   and 'verbose'.  Thanks to Andriy and Linus for their review.

3/ Testing the raid related corner cases of 1/ triggered bugs in the
   recently added 16-source operation support in the ioatdma driver.

4/ Some minor fixes / cleanups to mv_xor and ioatdma.

Conflicts:
	drivers/dma/dmatest.c

Signed-off-by: Vinod Koul