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

dmaengine: fsl-edma: clear pending interrupts on initialization

2015-06-25T03:52:32+00:00

Clear pending interrupts before requesting interrupts and move
interrupt initialization after channels have been initialized.
This avoids a NULL pointer dereference panic when using kexec
while DMA requests were running.

Signed-off-by: Stefan Agner 
Signed-off-by: Vinod Koul

dmaengine: fsl-edma: Declare slave capabilities for the generic code

2014-12-22T07:03:23+00:00

Now that the generic slave caps code can make use of the device assigned
capabilities, instead of relying on a callback to be implemented.

Make use of this code.

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

dmaengine: fsl-edma: Split device_control

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

Split the device_control callback of the Freescale EDMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.

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

dmaengine: Make the destination abbreviation coherent

2014-12-22T06:58:55+00:00

The dmaengine header abbreviates destination as at least two different strings.
Make a coherent use of a single one.

Signed-off-by: Maxime Ripard 
Acked-by: Mark Brown 
Acked-by: Laurent Pinchart 
Acked-by: Stephen Warren 
Signed-off-by: Vinod Koul

Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2014-12-15T00:10:09+00:00

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev__once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...

dmaengine: fsl-edma: fixup reg offset and hw S/G support in big-endian model

2014-12-09T09:11:58+00:00

The offset of all 8-/16-bit registers in big-endian eDMA model are
swapped in a 32-bit size opposite those in the little-endian model.

The hardware Scatter/Gather requires the subsequent TCDs stored in memory
in little endian independent of the register endian model, the eDMA engine
will do the swap if need.

This patch also use regular assignment for tcd variables r/w
instead of with io function previously that may not always be true.

Signed-off-by: Jingchang Lu 
Signed-off-by: Vinod Koul

dmaengine: fsl-edma: fix calculation of remaining bytes

2014-12-08T13:13:44+00:00

If the current transfer control descriptor (TCD) was not yet started,
the address will be the same as the initial address. Hence test if the
current address is less than or equal to the start address of each TCD.

Signed-off-by: Stefan Agner 
Signed-off-by: Vinod Koul

dma: drop owner assignment from platform_drivers

2014-10-20T14:20:28+00:00

A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang

dmaengine: Remove the context argument to the prep_dma_cyclic operation

2014-08-04T08:11:50+00:00

The argument is always set to NULL and never used. Remove it.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Vinod Koul

dmaengine: fsl-edma: fix dmamux index calculating error

2014-07-25T08:41:50+00:00

Signed-off-by: Jingchang Lu 
Tested-by: Stefan Agner 
Signed-off-by: Vinod Koul