linux-toradex.git/drivers/dma/fsldma.c, branch v4.6-rc7

dmaengine: fsldma: fix memory leak

2016-03-09T06:45:22+00:00

adding unmap of sources and destinations while doing dequeue.

Signed-off-by: Xuelin Shi 
Signed-off-by: Vinod Koul

dmaengine: fsldma: Fix module autoload for OF platform driver

2015-10-01T02:04:31+00:00

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt 
Signed-off-by: Vinod Koul

dmaengine: fsldma: remove the unused variable

2015-01-13T18:28:08+00:00

Fix the following build warning:
  drivers/dma/fsldma.c: In function 'fsl_dma_device_terminate_all':
  drivers/dma/fsldma.c:947:6: warning: unused variable 'size' [-Wunused-variable]

Signed-off-by: Kevin Hao 
Signed-off-by: Vinod Koul

dmaengine: fsldma: declare slave capabilities for the generic code

2015-01-13T18:28:08+00:00

Since commit ecc19d17868b ("dmaengine: Add a warning for drivers not
using the generic slave caps retrieval"), the dma drivers are required
to fill the caps infos in order to support generic slaves caps
retrieval. Otherwise we will get a warning like this:
  WARNING: at drivers/dma/dmaengine.c:830
  Modules linked in:
  CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W       3.19.0-rc2-next-20150106-dirty #271
  task: c0000001f70a0000 ti: c0000001f7044000 task.ti: c0000001f7044000
  NIP: c00000000032b238 LR: c00000000032b234 CTR: c00000000001d258
  REGS: c0000001f7047330 TRAP: 0700   Tainted: G        W        (3.19.0-rc2-next-20150106-dirty)
  MSR: 0000000080029000   CR: 24adbe22  XER: 20000000
  SOFTE: 1
  GPR00: c00000000032b234 c0000001f70475b0 c0000000009b4848 0000000000000040
  GPR04: 0000000000000001 0000000000000001 0000000000000000 000000000000000f
  GPR08: 0000000000000000 c000000000902988 c000000000902988 00000000000052c8
  GPR12: 0000000024adbe22 c00000000fff4000 c000000000002038 0000000000000000
  GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR24: 0000000000000000 0000000000000000 c000000000972dc8 c0000000007e6fd0
  GPR28: c0000001f76d1d30 c0000001f76d1c10 c0000001f76d1c00 0000000000000000
  NIP [c00000000032b238] .dma_async_device_register+0x3f8/0x5b8
  LR [c00000000032b234] .dma_async_device_register+0x3f4/0x5b8
  Call Trace:
  [c0000001f70475b0] [c00000000032b234] .dma_async_device_register+0x3f4/0x5b8 (unreliable)
  [c0000001f70476a0] [c00000000032ca78] .fsldma_of_probe+0x298/0x438
  [c0000001f7047750] [c00000000037080c] .platform_drv_probe+0x50/0x9c
  [c0000001f70477d0] [c00000000036e74c] .really_probe+0xa4/0x29c
  [c0000001f7047870] [c00000000036eae4] .__driver_attach+0x100/0x104
  [c0000001f7047900] [c00000000036c1f0] .bus_for_each_dev+0x84/0xe4
  [c0000001f70479a0] [c00000000036e164] .driver_attach+0x24/0x38
  [c0000001f7047a10] [c00000000036dcc8] .bus_add_driver+0x1c8/0x2ac
  [c0000001f7047ab0] [c00000000036f14c] .driver_register+0x8c/0x158
  [c0000001f7047b30] [c0000000003707a8] .__platform_driver_register+0x6c/0x80
  [c0000001f7047ba0] [c000000000898a3c] .fsldma_init+0x2c/0x40
  [c0000001f7047c10] [c000000000001818] .do_one_initcall+0xb8/0x234
  [c0000001f7047d00] [c000000000878e2c] .kernel_init_freeable+0x188/0x268
  [c0000001f7047db0] [c000000000002054] .kernel_init+0x1c/0xfc8
  [c0000001f7047e30] [c000000000000884] .ret_from_kernel_thread+0x58/0xd4
  Instruction dump:
  7fb9f840 3bffffe0 409effac 7f54d378 48000060 813d0050 2f890000 40befdd0
  3c62ffe3 38632450 482f0aa9 60000000 <0fe00000> 4bfffdb8 7f03c378 482ed465

Signed-off-by: Kevin Hao 
Signed-off-by: Vinod Koul

dmaengine: fsl-dma: Split device_control

2014-12-22T06:59:03+00:00

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

While we're at it, remove the useless prep_sg callback.

Signed-off-by: Maxime Ripard 
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: fsldma: Remove chancnt affectations

2014-11-06T06:02:45+00:00

chanctnt is already filled by dma_async_device_register, which uses the channel
list to know how much channels there is.

Since it's already filled, we can safely remove it from the drivers' probe
function.

Signed-off-by: Maxime Ripard 
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: freescale: remove FSLDMA_EXTERNAL_START control method

2014-10-15T16:01:28+00:00

since users have been move to fsl_dma_external_start() API, so remove this
now

Signed-off-by: Vinod Koul

dmaengine: freescale: add and export fsl_dma_external_start()

2014-10-15T16:01:27+00:00

The freescale driver uses custom device control FSLDMA_EXTERNAL_START to
put the controller in external start mode.
Since we are planning to deprecate the device control, move this to exported
API. Subsequent patches will remove the FSLDMA_EXTERNAL_START

Signed-off-by: Vinod Koul