linux-toradex.git/drivers/dma, branch v3.7.6

dma: tegra: implement flags parameters for cyclic transfer

2013-01-28T04:49:03+00:00

commit b9bb37f5486ba05d2b557dbf1aeb754fef618985 upstream.

The flag parameter is added in the cyclic transfer request.
Use the flag option of:
- DMA_PREP_INTERRUPT for enabling interrupt.
- DMA_CTRL_ACK for deciding whether ack is requred or not for
  descriptor.

Signed-off-by: Laxman Dewangan 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

ioat: Fix DMA memory sync direction correct flag

2013-01-28T04:49:02+00:00

commit ac4989874af56435c308bdde9ad9c837a26f8b23 upstream.

ioat does DMA memory sync with DMA_TO_DEVICE direction on a buffer allocated
for DMA_FROM_DEVICE dma, resulting in the following warning from dma debug.
Fixed the dma_sync_single_for_device() call to use the correct direction.

[  226.288947] WARNING: at lib/dma-debug.c:990 check_sync+0x132/0x550()
[  226.288948] Hardware name: ProLiant DL380p Gen8
[  226.288951] ioatdma 0000:00:04.0: DMA-API: device driver syncs DMA memory with different direction [device address=0x00000000ffff7000] [size=4096 bytes] [mapped with DMA_FROM_DEVICE] [synced with DMA_TO_DEVICE]
[  226.288953] Modules linked in: iTCO_wdt(+) sb_edac(+) ioatdma(+) microcode serio_raw pcspkr edac_core hpwdt(+) iTCO_vendor_support hpilo(+) dca acpi_power_meter ata_generic pata_acpi sd_mod crc_t10dif ata_piix libata hpsa tg3 netxen_nic(+) sunrpc dm_mirror dm_region_hash dm_log dm_mod
[  226.288967] Pid: 1055, comm: work_for_cpu Tainted: G        W    3.3.0-0.20.el7.x86_64 #1
[  226.288968] Call Trace:
[  226.288974]  [] warn_slowpath_common+0x7f/0xc0
[  226.288977]  [] warn_slowpath_fmt+0x46/0x50
[  226.288980]  [] check_sync+0x132/0x550
[  226.288983]  [] debug_dma_sync_single_for_device+0x3f/0x50
[  226.288988]  [] ? wait_for_common+0x72/0x180
[  226.288995]  [] ioat_xor_val_self_test+0x3e5/0x832 [ioatdma]
[  226.288999]  [] ? kfree+0x259/0x270
[  226.289004]  [] ioat3_dma_self_test+0x1b/0x20 [ioatdma]
[  226.289008]  [] ioat_probe+0x2f8/0x348 [ioatdma]
[  226.289011]  [] ioat3_dma_probe+0x1d5/0x2aa [ioatdma]
[  226.289016]  [] ioat_pci_probe+0x139/0x17c [ioatdma]
[  226.289020]  [] local_pci_probe+0x5c/0xd0
[  226.289023]  [] ? destroy_work_on_stack+0x20/0x20
[  226.289025]  [] do_work_for_cpu+0x18/0x30
[  226.289029]  [] kthread+0xb7/0xc0
[  226.289033]  [] kernel_thread_helper+0x4/0x10
[  226.289036]  [] ? _raw_spin_unlock_irq+0x30/0x50
[  226.289038]  [] ? retint_restore_args+0x13/0x13
[  226.289041]  [] ? kthread_worker_fn+0x1a0/0x1a0
[  226.289044]  [] ? gs_change+0x13/0x13
[  226.289045] ---[ end trace e1618afc7a606089 ]---
[  226.289047] Mapped at:
[  226.289048]  [] debug_dma_map_page+0x87/0x150
[  226.289050]  [] dma_map_page.constprop.18+0x70/0xb34 [ioatdma]
[  226.289054]  [] ioat_xor_val_self_test+0x1d8/0x832 [ioatdma]
[  226.289058]  [] ioat3_dma_self_test+0x1b/0x20 [ioatdma]
[  226.289061]  [] ioat_probe+0x2f8/0x348 [ioatdma]

Signed-off-by: Shuah Khan 
Signed-off-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

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

2012-10-26T21:59:01+00:00

Pull slave-dmaengine fixes from Vinod Koul:
 "Three fixes for slave dmanegine.

  Two are for typo omissions in sifr dmaengine driver and the last one
  is for the imx driver fixing a missing unlock"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: sirf: fix a typo in moving running dma_desc to active queue
  dmaengine: sirf: fix a typo in dma_prep_interleaved
  dmaengine: imx-dma: fix missing unlock on error in imxdma_xfer_desc()

drivers/dma/dw_dmac: make driver's endianness configurable

2012-10-25T21:37:53+00:00

The dw_dmac driver was originally developed for avr32 to be used with the
Synopsys DesignWare AHB DMA controller.  Starting from 2.6.38, access to
the device's i/o memory was done with the little-endian readl/writel
functions(1)

This broke the driver for the avr32 platform, because it needs big
(native) endian accessors.  This patch makes the endianness configurable
using 'DW_DMAC_BIG_ENDIAN_IO', which will default be true for AVR32

I submitted this patch before(2) but then waited for Andy to finish other
changes to the same module(3).

(1) https://patchwork.kernel.org/patch/608211
(2) https://lkml.org/lkml/2012/8/26/148
(3) https://lkml.org/lkml/2012/9/21/173

Signed-off-by: Hein Tibosch 
Acked-by: Arnd Bergmann 
Cc: Andy Shevchenko 
Acked-by: Viresh Kumar 
Cc: Hans-Christian Egtvedt 
Cc: Ludovic Desroches 
Cc: Havard Skinnemoen 
Cc: Nicolas Ferre 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

dmaengine: sirf: fix a typo in moving running dma_desc to active queue

2012-10-24T11:00:38+00:00

list_move_tail(&schan->queued, &schan->active) makes the list_empty(schan->queued)
undefined, we either should change it to:
list_move_tail(schan->queued.next, &schan->active)
or
list_move_tail(&sdesc->node, &schan->active)

Signed-off-by: Barry Song 
Cc: stable 
Signed-off-by: Vinod Koul

dmaengine: sirf: fix a typo in dma_prep_interleaved

2012-10-24T11:00:37+00:00

either DEV_TO_MEM or MEM_TO_DEV is supported, so change
OR to AND.

Signed-off-by: Barry Song 
Cc: stable 
Signed-off-by: Vinod Koul

dmaengine: imx-dma: fix missing unlock on error in imxdma_xfer_desc()

2012-10-24T03:22:45+00:00

Add the missing unlock on the error handling path in function
imxdma_xfer_desc().

Signed-off-by: Wei Yongjun 
Cc: stable 
Signed-off-by: Vinod Koul

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

2012-10-10T02:10:41+00:00

Pull slave-dmaengine updates from Vinod Koul:
 "This time we have Andy updates on dw_dmac which is attempting to make
  this IP block available as PCI and platform device though not fully
  complete this time.

  We also have TI EDMA moving the dma driver to use dmaengine APIs, also
  have a new driver for mmp-tdma, along with bunch of small updates.

  Now for your excitement the merge is little unusual here, while
  merging the auto merge on linux-next picks wrong choice for pl330
  (drivers/dma/pl330.c) and this causes build failure.  The correct
  resolution is in linux-next.  (DMA: PL330: Fix build error) I didn't
  back merge your tree this time as you are better than me so no point
  in doing that for me :)"

Fixed the pl330 conflict as in linux-next, along with trivial header
file conflicts due to changed includes.

* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (29 commits)
  dma: tegra: fix interrupt name issue with apb dma.
  dw_dmac: fix a regression in dwc_prep_dma_memcpy
  dw_dmac: introduce software emulation of LLP transfers
  dw_dmac: autoconfigure data_width or get it via platform data
  dw_dmac: autoconfigure block_size or use platform data
  dw_dmac: get number of channels from hardware if possible
  dw_dmac: fill optional encoded parameters in register structure
  dw_dmac: mark dwc_dump_chan_regs as inline
  DMA: PL330: return ENOMEM instead of 0 from pl330_alloc_chan_resources
  DMA: PL330: Remove redundant runtime_suspend/resume functions
  DMA: PL330: Remove controller clock enable/disable
  dmaengine: use kmem_cache_zalloc instead of kmem_cache_alloc/memset
  DMA: PL330: Set the capability of pdm0 and pdm1 as DMA_PRIVATE
  ARM: EXYNOS: Set the capability of pdm0 and pdm1 as DMA_PRIVATE
  dma: tegra: use list_move_tail instead of list_del/list_add_tail
  mxs/dma: Enlarge the CCW descriptor area to 4 pages
  dw_dmac: utilize slave_id to pass request line
  dmaengine: mmp_tdma: add dt support
  dmaengine: mmp-pdma support
  spi: davici - make davinci select edma
  ...

Merge tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2012-10-08T22:07:14+00:00

Pull sound updates from Takashi Iwai:
"This contains pretty many small commits covering fairly large range of
files in sound/ directory. Partly because of additional API support
and partly because of constantly developed ASoC and ARM stuff.

Some highlights:

- Introduced the helper function and documentation for exposing the
channel map via control API, as discussed in Plumbers; most of PCI
drivers are covered, will follow more drivers later

- Most of drivers have been replaced with the new PM callbacks (if
the bus is supported)

- HD-audio controller got the support of runtime PM and the support
of D3 clock-stop. Also changing the power_save option in sysfs
kicks off immediately to enable / disable the power-save mode.

- Another significant code change in HD-audio is the rewrite of
firmware loading code. Other than that, most of changes in
HD-audio are continued cleanups and standardization for the generic
auto parser and bug fixes (HBR, device-specific fixups), in
addition to the support of channel-map API.

- Addition of ASoC bindings for the compressed API, used by the
mid-x86 drivers.

- Lots of cleanups and API refreshes for ASoC codec drivers and
DaVinci.

- Conversion of OMAP to dmaengine.

- New machine driver for Wolfson Microelectronics Bells.

- New CODEC driver for Wolfson Microelectronics WM0010.

- Enhancements to the ux500 and wm2000 drivers

- A new driver for DA9055 and the support for regulator bypass mode."

Fix up various arm soc header file reorg conflicts.

* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (339 commits)
ALSA: hda - Add new codec ALC283 ALC290 support
ALSA: hda - avoid unneccesary indices on "Headphone Jack" controls
ALSA: hda - fix indices on boost volume on Conexant
ALSA: aloop - add locking to timer access
ALSA: hda - Fix hang caused by race during suspend.
sound: Remove unnecessary semicolon
ALSA: hda/realtek - Fix detection of ALC271X codec
ALSA: hda - Add inverted internal mic quirk for Lenovo IdeaPad U310
ALSA: hda - make Realtek/Sigmatel/Conexant use the generic unsol event
ALSA: hda - make a generic unsol event handler
ASoC: codecs: Add DA9055 codec driver
ASoC: eukrea-tlv320: Convert it to platform driver
ALSA: ASoC: add DT bindings for CS4271
ASoC: wm_hubs: Ensure volume updates are handled during class W startup
ASoC: wm5110: Adding missing volume update bits
ASoC: wm5110: Add OUT3R support
ASoC: wm5110: Add AEC loopback support
ASoC: wm5110: Rename EPOUT to HPOUT3
ASoC: arizona: Add more clock rates
ASoC: arizona: Add more DSP options for mixer input muxes
...

drivers/dma/dmaengine.c: lower the priority of 'failed to get' dma channel message

2012-10-05T18:04:36+00:00

Do the same as commit a03a202e95fd ("dmaengine: failure to get a
specific DMA channel is not critical") to get rid of the following
messages during kernel boot:

  dmaengine_get: failed to get dma1chan0: (-22)
  dmaengine_get: failed to get dma1chan1: (-22)
  dmaengine_get: failed to get dma1chan2: (-22)
  dmaengine_get: failed to get dma1chan3: (-22)
  ..

Signed-off-by: Fabio Estevam 
Cc: Vinod Koul 
Cc: Dan Williams 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds