02 Jun, 2017
1 commit
-
This dma engine driver directly accesses page_link assuming knowledge
that should be contained only in scatterlist.h.We replace these with calls to sg_chain and sg_assign_page.
Signed-off-by: Logan Gunthorpe
Signed-off-by: Stephen Bates
Acked-by: Linus Walleij
Cc: Dan Williams
Cc: Vinod Koul
Cc: Per Förlin
Signed-off-by: Vinod Koul
08 Aug, 2016
1 commit
-
This is in preperation of moving to a callback that provides results to the
callback for the transaction. The conversion will maintain current behavior
and the driver must convert to new callback mechanism at a later time in
order to receive results.Signed-off-by: Dave Jiang
Reviewed-by: Lars-Peter Clausen
Signed-off-by: Vinod Koul
16 Jul, 2016
2 commits
-
imxdma_probe function starting brace is wrongly indented, so fix that
Signed-off-by: Vinod Koul
Cc: Sascha Hauer
Cc: Linus Walleij -
dmaengine device should explicitly call devm_free_irq() when using
devm_request_irq().The irq is still ON when devices remove is executed and irq should be
quiesced before remove is completed.Signed-off-by: Vinod Koul
05 Aug, 2015
1 commit
-
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
07 Jul, 2015
1 commit
-
clk_prepare_enable() may fail, so we should better check its return value
and propagate it in the case of error.While at it, change the label 'err' to a more descriptive naming.
Signed-off-by: Fabio Estevam
Signed-off-by: Vinod Koul
04 May, 2015
1 commit
-
The platform_device_id is not modified by the driver and core uses it as
const.Signed-off-by: Krzysztof Kozlowski
Signed-off-by: Vinod Koul
03 Feb, 2015
1 commit
22 Dec, 2014
2 commits
-
Remove the function is_imx21_dma() that is not used anywhere.
This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist
Signed-off-by: Vinod Koul -
Split the device_control callback of the Freescale IMX DMA 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
20 Oct, 2014
1 commit
-
A platform_driver does not need to set an owner, it will be populated by the
driver core.Signed-off-by: Wolfram Sang
04 Aug, 2014
1 commit
-
The argument is always set to NULL and never used. Remove it.
Signed-off-by: Laurent Pinchart
Signed-off-by: Vinod Koul
06 Mar, 2014
2 commits
-
Signed-off-by: Alexander Shiyan
Signed-off-by: Vinod Koul -
Use the dev_* message logging API instead of raw printk.
Signed-off-by: Alexander Shiyan
Signed-off-by: Vinod Koul
01 Nov, 2013
1 commit
31 Oct, 2013
1 commit
-
drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
drivers/dma/imx-dma.c:589:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
drivers/dma/imx-dma.c:599:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'We can't use the %pa format for these because this relates to phys_addr_t,
and dma_addr_t can be a different size. So, fix these by converting them
to %llx and casting the dma_addr_t to always be unsigned long long.While we're here, also use %zu for size_t.
Signed-off-by: Russell King
Signed-off-by: Vinod Koul
25 Oct, 2013
1 commit
-
Acked-by: Dan Williams
Acked-by: Linus Walleij
Signed-off-by: Vinod Koul
04 Oct, 2013
3 commits
-
We need to free the ld_active list head before jumping into the callback
routine. Otherwise the callback could run into issue_pending and change
our ld_active list head we just going to free. This will run the channel
list into an currupted and undefined state.Signed-off-by: Michael Grzeschik
Signed-off-by: Vinod Koul -
The tasklet and irqhandler are using spin_lock while other routines are
using spin_lock_irqsave/restore. This leads to lockdep issues as
described bellow. This patch is changing the code to use
spinlock_irq_save/restore in both code pathes.As imxdma_xfer_desc always gets called with spin_lock_irqsave lock held,
this patch also removes the spare call inside the routine to avoid
double locking.[ 403.358162] =================================
[ 403.362549] [ INFO: inconsistent lock state ]
[ 403.366945] 3.10.0-20130823+ #904 Not tainted
[ 403.371331] ---------------------------------
[ 403.375721] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
[ 403.381769] swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[ 403.386762] (&(&imxdma->lock)->rlock){?.-...}, at: [] imxdma_tasklet+0x20/0x134
[ 403.395201] {IN-HARDIRQ-W} state was registered at:
[ 403.400108] [] mark_lock+0x2a0/0x6b4
[ 403.404798] [] __lock_acquire+0x650/0x1a64
[ 403.410004] [] lock_acquire+0x94/0xa8
[ 403.414773] [] _raw_spin_lock+0x54/0x8c
[ 403.419720] [] dma_irq_handler+0x78/0x254
[ 403.424845] [] handle_irq_event_percpu+0x38/0x1b4
[ 403.430670] [] handle_irq_event+0x44/0x64
[ 403.435789] [] handle_level_irq+0xd8/0xf0
[ 403.440903] [] generic_handle_irq+0x28/0x38
[ 403.446194] [] handle_IRQ+0x68/0x8c
[ 403.450789] [] avic_handle_irq+0x3c/0x48
[ 403.455811] [] __irq_svc+0x44/0x74
[ 403.460314] [] cpu_startup_entry+0x88/0xf4
[ 403.465525] [] rest_init+0xb8/0xe0
[ 403.470045] [] start_kernel+0x28c/0x2d4
[ 403.474986] [] 0xa0008040
[ 403.478709] irq event stamp: 50854
[ 403.482140] hardirqs last enabled at (50854): [] tasklet_action+0x38/0xdc
[ 403.489954] hardirqs last disabled at (50853): [] tasklet_action+0x20/0xdc
[ 403.497761] softirqs last enabled at (50850): [] _local_bh_enable+0x14/0x18
[ 403.505741] softirqs last disabled at (50851): [] irq_exit+0x88/0xdc
[ 403.513026]
[ 403.513026] other info that might help us debug this:
[ 403.519593] Possible unsafe locking scenario:
[ 403.519593]
[ 403.525548] CPU0
[ 403.528020] ----
[ 403.530491] lock(&(&imxdma->lock)->rlock);
[ 403.534828]
[ 403.537474] lock(&(&imxdma->lock)->rlock);
[ 403.541983]
[ 403.541983] *** DEADLOCK ***
[ 403.541983]
[ 403.547951] no locks held by swapper/0.
[ 403.551813]
[ 403.551813] stack backtrace:
[ 403.556222] CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.0-20130823+ #904
[ 403.563039] Backtrace:
[ 403.565581] [] (dump_backtrace+0x0/0x10c) from [] (show_stack+0x18/0x1c)
[ 403.574054] r6:00000000 r5:c05c51d8 r4:c040bd58 r3:00200000
[ 403.579872] [] (show_stack+0x0/0x1c) from [] (dump_stack+0x20/0x28)
[ 403.587955] [] (dump_stack+0x0/0x28) from [] (print_usage_bug.part.28+0x224/0x28c)
[ 403.597340] [] (print_usage_bug.part.28+0x0/0x28c) from [] (mark_lock+0x440/0x6b4)
[ 403.606682] r8:c004a41c r7:00000000 r6:c040bd58 r5:c040c040 r4:00000002
[ 403.613566] [] (mark_lock+0x0/0x6b4) from [] (__lock_acquire+0x6cc/0x1a64)
[ 403.622244] [] (__lock_acquire+0x0/0x1a64) from [] (lock_acquire+0x94/0xa8)
[ 403.631010] [] (lock_acquire+0x0/0xa8) from [] (_raw_spin_lock+0x54/0x8c)
[ 403.639614] [] (_raw_spin_lock+0x0/0x8c) from [] (imxdma_tasklet+0x20/0x134)
[ 403.648434] r6:c3847010 r5:c040e890 r4:c38470d4
[ 403.653194] [] (imxdma_tasklet+0x0/0x134) from [] (tasklet_action+0x8c/0xdc)
[ 403.662013] r8:c0599160 r7:00000000 r6:00000000 r5:c040e890 r4:c3847114 r3:c019d75c
[ 403.670042] [] (tasklet_action+0x0/0xdc) from [] (__do_softirq+0xe4/0x1f0)
[ 403.678687] r7:00000101 r6:c0402000 r5:c059919c r4:00000001
[ 403.684498] [] (__do_softirq+0x0/0x1f0) from [] (irq_exit+0x88/0xdc)
[ 403.692652] [] (irq_exit+0x0/0xdc) from [] (handle_IRQ+0x6c/0x8c)
[ 403.700514] r4:00000030 r3:00000110
[ 403.704192] [] (handle_IRQ+0x0/0x8c) from [] (avic_handle_irq+0x3c/0x48)
[ 403.712664] r5:c0403f28 r4:c0593ebc
[ 403.716343] [] (avic_handle_irq+0x0/0x48) from [] (__irq_svc+0x44/0x74)
[ 403.724733] Exception stack(0xc0403f28 to 0xc0403f70)
[ 403.729841] 3f20: 00000001 00000004 00000000 20000013 c0402000 c04104a8
[ 403.738078] 3f40: 00000002 c0b69620 a0004000 41069264 a03fb5f4 c0403f7c c0403f40 c0403f70
[ 403.746301] 3f60: c004b92c c0009e74 20000013 ffffffff
[ 403.751383] r6:ffffffff r5:20000013 r4:c0009e74 r3:c004b92c
[ 403.757210] [] (arch_cpu_idle+0x0/0x4c) from [] (cpu_startup_entry+0x88/0xf4)
[ 403.766161] [] (cpu_startup_entry+0x0/0xf4) from [] (rest_init+0xb8/0xe0)
[ 403.774753] [] (rest_init+0x0/0xe0) from [] (start_kernel+0x28c/0x2d4)
[ 403.783051] r6:c03fc484 r5:ffffffff r4:c040a0e0
[ 403.787797] [] (start_kernel+0x0/0x2d4) from [] (0xa0008040)Signed-off-by: Michael Grzeschik
Signed-off-by: Vinod Koul -
When perparing cyclic_dma buffers by the sound layer, it will dump the
following lockdep trace. The leading snd_pcm_action_single get called
with read_lock_irq called. To fix this, we change the kcalloc call from
GFP_KERNEL to GFP_ATOMIC.WARNING: at kernel/lockdep.c:2740 lockdep_trace_alloc+0xcc/0x114()
DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
Modules linked in:
CPU: 0 PID: 832 Comm: aplay Not tainted 3.11.0-20130823+ #903
Backtrace:
[] (dump_backtrace+0x0/0x10c) from [] (show_stack+0x18/0x1c)
r6:c004c090 r5:00000009 r4:c2e0bd18 r3:00404000
[] (show_stack+0x0/0x1c) from [] (dump_stack+0x20/0x28)
[] (dump_stack+0x0/0x28) from [] (warn_slowpath_common+0x54/0x70)
[] (warn_slowpath_common+0x0/0x70) from [] (warn_slowpath_fmt+0x38/0x40)
r8:00004000 r7:a3b90000 r6:000080d0 r5:60000093 r4:c2e0a000 r3:00000009
[] (warn_slowpath_fmt+0x0/0x40) from [] (lockdep_trace_alloc+0xcc/0x114)
r3:c03955d8 r2:c03907db
[] (lockdep_trace_alloc+0x0/0x114) from [] (__kmalloc+0x34/0x118)
r6:000080d0 r5:c3800120 r4:000080d0 r3:c040a0f8
[] (__kmalloc+0x0/0x118) from [] (imxdma_prep_dma_cyclic+0x64/0x168)
r7:a3b90000 r6:00000004 r5:c39d8420 r4:c3847150
[] (imxdma_prep_dma_cyclic+0x0/0x168) from [] (snd_dmaengine_pcm_trigger+0xa8/0x160)
[] (snd_dmaengine_pcm_trigger+0x0/0x160) from [] (soc_pcm_trigger+0x90/0xb4)
r8:c058c7b0 r7:c3b8140c r6:c39da560 r5:00000001 r4:c3b81000
[] (soc_pcm_trigger+0x0/0xb4) from [] (snd_pcm_do_start+0x2c/0x38)
r7:00000000 r6:00000003 r5:c058c7b0 r4:c3b81000
[] (snd_pcm_do_start+0x0/0x38) from [] (snd_pcm_action_single+0x40/0x6c)
[] (snd_pcm_action_single+0x0/0x6c) from [] (snd_pcm_action_lock_irq+0x7c/0x9c)
r7:00000003 r6:c3b810f0 r5:c3b810f0 r4:c3b81000
[] (snd_pcm_action_lock_irq+0x0/0x9c) from [] (snd_pcm_common_ioctl1+0x7f8/0xfd0)
r8:c3b7f888 r7:005407b8 r6:c2c991c0 r5:c3b81000 r4:c3b81000 r3:00004142
[] (snd_pcm_common_ioctl1+0x0/0xfd0) from [] (snd_pcm_playback_ioctl1+0x464/0x488)
[] (snd_pcm_playback_ioctl1+0x0/0x488) from [] (snd_pcm_playback_ioctl+0x34/0x40)
r8:c3b7f888 r7:00004142 r6:00000004 r5:c2c991c0 r4:005407b8
[] (snd_pcm_playback_ioctl+0x0/0x40) from [] (vfs_ioctl+0x30/0x44)
[] (vfs_ioctl+0x0/0x44) from [] (do_vfs_ioctl+0x55c/0x5c0)
[] (do_vfs_ioctl+0x0/0x5c0) from [] (SyS_ioctl+0x40/0x68)
[] (SyS_ioctl+0x0/0x68) from [] (ret_fast_syscall+0x0/0x44)
r8:c0009544 r7:00000036 r6:bedeaa58 r5:00000000 r4:000000c0Signed-off-by: Michael Grzeschik
Signed-off-by: Vinod Koul
02 Sep, 2013
1 commit
-
kfree on a NULL pointer is a no-op. Null pointer check is
not necessary.Signed-off-by: Sachin Kamat
Acked-by: Sascha Hauer
Signed-off-by: Vinod Koul
05 Jul, 2013
2 commits
-
imxdma->dev is used for dev_warn before it was set.
Signed-off-by: Markus Pargmann
Reviewed-by: Shawn Guo
Acked-by: Sascha Hauer
Signed-off-by: Vinod Koul -
Adding devicetree support for imx-dma driver. Use driver name for
function 'imx_dma_is_general_purpose' because the devicename for
devicetree initialized devices is different.Signed-off-by: Markus Pargmann
Reviewed-by: Arnd Bergmann
Reviewed-by: Shawn Guo
Acked-by: Sascha Hauer
Signed-off-by: Vinod Koul
15 Apr, 2013
2 commits
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kfree on NULL pointer is a no-op.
Signed-off-by: Syam Sidhardhan
Signed-off-by: Vinod Koul -
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
26 Jan, 2013
2 commits
-
This resolves a gpio driver merge issue pointed out in linux-next.
Signed-off-by: Greg Kroah-Hartman
-
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.Signed-off-by: Thierry Reding
Cc: Vinod Koul
Signed-off-by: Greg Kroah-Hartman
08 Jan, 2013
1 commit
-
HW chaining is currently broken in imx-dma. It can be easily reproduced doing
intensive accesses to a external MMC card and checking how the file system
is corrupted.Preventing the driver to use HW chaining solves these issues.
Signed-off-by: Javier Martin
Signed-off-by: Vinod Koul
06 Nov, 2012
1 commit
-
From Michal Simek:
* 'arm-next' of git://git.xilinx.com/linux-xlnx:
zynq: move static peripheral mappings
zynq: remove use of CLKDEV_LOOKUP
zynq: use pl310 device tree bindings
zynq: use GIC device tree bindings
+ Linux 3.7-rc3
24 Oct, 2012
1 commit
-
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
15 Oct, 2012
3 commits
-
It changes the driver to use platform_device_id rather than cpu_is_xxx
to determine the controller type, and updates the platform code
accordingly.As the result, mach/hardware.h inclusion gets removed from the driver.
Signed-off-by: Shawn Guo
Signed-off-by: Sascha Hauer
Acked-by: Arnd Bergmann
Tested-by: Javier Martin
Cc: Vinod Koul -
Retrieve MEM and IRQ from resources rather than directly using the
value by including machine header.Signed-off-by: Shawn Guo
Acked-by: Sascha Hauer
Acked-by: Arnd Bergmann
Cc: Vinod Koul -
Use managed functions devm_kzalloc and devm_request_irq instead to
make the error patch simpler.Signed-off-by: Shawn Guo
Acked-by: Sascha Hauer
Acked-by: Arnd Bergmann
Cc: Vinod Koul
09 Oct, 2012
1 commit
-
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
...
02 Oct, 2012
2 commits
-
Pull ARM soc multiplatform enablement from Olof Johansson:
"This is a pretty significant branch. It's the introduction of the
first multiplatform support on ARM, and with this (and the later
branch) merged, it is now possible to build one kernel that contains
support for highbank, vexpress, mvebu, socfpga, and picoxcell. More
platforms will be convered over in the next few releases.Two critical last things had to be done for this to be practical and
possible:
* Today each platform has its own include directory under
mach-/include/mach/*, and traditionally that is where a lot
of driver/platform shared definitions have gone, such as platform
data structures. They now need to move out to a common location
instead, and this branch moves a large number of those out to
include/linux/platform_data.
* Each platform used to list the device trees to compile for its
boards in mach-/Makefile.boot.Both of the above changes will mean that there are some merge
conflicts to come (and some to resolve here). It's a one-time move
and once it settles in, we should be good for quite a while. Sorry
for the overhead."Fix conflicts as per Olof.
* tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits)
ARM: add v7 multi-platform defconfig
ARM: msm: Move core.h contents into common.h
ARM: highbank: call highbank_pm_init from .init_machine
ARM: dtb: move all dtb targets to common Makefile
ARM: spear: move platform_data definitions
ARM: samsung: move platform_data definitions
ARM: orion: move platform_data definitions
ARM: vexpress: convert to multi-platform
ARM: initial multiplatform support
ARM: mvebu: move armada-370-xp.h in mach dir
ARM: vexpress: remove dependency on mach/* headers
ARM: picoxcell: remove dependency on mach/* headers
ARM: move all dtb targets out of Makefile.boot
ARM: picoxcell: move debug macros to include/debug
ARM: socfpga: move debug macros to include/debug
ARM: mvebu: move debug macros to include/debug
ARM: vexpress: move debug macros to include/debug
ARM: highbank: move debug macros to include/debug
ARM: move debug macros to common location
ARM: make mach/gpio.h headers optional
... -
Pull the trivial tree from Jiri Kosina:
"Tiny usual fixes all over the place"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)
doc: fix old config name of kprobetrace
fs/fs-writeback.c: cleanup riteback_sb_inodes kerneldoc
btrfs: fix the commment for the action flags in delayed-ref.h
btrfs: fix trivial typo for the comment of BTRFS_FREE_INO_OBJECTID
vfs: fix kerneldoc for generic_fh_to_parent()
treewide: fix comment/printk/variable typos
ipr: fix small coding style issues
doc: fix broken utf8 encoding
nfs: comment fix
platform/x86: fix asus_laptop.wled_type module parameter
mfd: printk/comment fixes
doc: getdelays.c: remember to close() socket on error in create_nl_socket()
doc: aliasing-test: close fd on write error
mmc: fix comment typos
dma: fix comments
spi: fix comment/printk typos in spi
Coccinelle: fix typo in memdup_user.cocci
tmiofb: missing NULL pointer checks
tools: perf: Fix typo in tools/perf
tools/testing: fix comment / output typos
...
22 Sep, 2012
1 commit
-
Change the parameter list of device_prep_dma_cyclic() so the DMA drivers
can receive the flags coming from clients.
This feature can be used during audio operation to disable all audio
related interrupts when the DMA_PREP_INTERRUPT is cleared from the flags.Signed-off-by: Peter Ujfalusi
Acked-by: Nicolas Ferre
Acked-by: Shawn Guo
Acked-by: Vinod Koul
Signed-off-by: Mark Brown
14 Sep, 2012
1 commit
-
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.This moves such data out of the imx include directories
Signed-off-by: Arnd Bergmann
Acked-by: Mark Brown
Acked-by: Greg Kroah-Hartman
Acked-by: Nicolas Pitre
Acked-by: Mauro Carvalho Chehab
Acked-by: Sascha Hauer
Acked-by: Vinod Koul
Cc: Russell King
Cc: Dan Williams
Cc: "Ben Dooks (embedded platforms)"
Cc: "Wolfram Sang (embedded platforms)"
Cc: Chris Ball
Cc: David Woodhouse
Cc: Grant Likely
Cc: Alan Cox
Cc: Felipe Balbi
Cc: Alan Stern
Cc: Florian Tobias Schandinat
Cc: Liam Girdwood
Cc: Javier Martin
Cc: Shawn Guo
Cc: Guennadi Liakhovetski
01 Sep, 2012
1 commit
-
Correct spelling typo in drivers/dma.
Signed-off-by: Masanari Iida
Signed-off-by: Jiri Kosina
27 Jul, 2012
1 commit
-
With the new i.MX clock infrastructure we need to request the dma clocks
seperately: ahb and ipg clocks.This fixes the following kernel crash and make audio to be functional again:
root@freescale /home$ aplay audio48k16S.wav
Playing WAVE 'audio48k16S.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c7b74000
[00000000] *pgd=a7bb5831, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] PREEMPT ARM
Modules linked in:
CPU: 0 Not tainted (3.5.0-rc5-next-20120702-00007-g3028b64 #1128)
PC is at snd_dmaengine_pcm_get_chan+0x8/0x10
LR is at snd_imx_pcm_hw_params+0x18/0xdc
pc : [] lr : [] psr: a0000013
sp : c7b45e30 ip : ffffffff fp : c7ae58e0
r10: 00000000 r9 : c7ae981c r8 : c7b88800
r7 : c7ae5a60 r6 : c7ae5b20 r5 : c7ae9810 r4 : c7afa060
r3 : 00000000 r2 : 00000001 r1 : c7b88800 r0 : c7afa060
Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 0005317f Table: a7b74000 DAC: 00000015
Process aplay (pid: 701, stack limit = 0xc7b44270)
Stack: (0xc7b45e30 to 0xc7b46000)
5e20: 00100000 00000029 c7b88800 c02db870
5e40: c7ae5a60 c02d4594 00000010 01ae5a60 c7ae5a60 c7ae9810 c7ae9810 c7afa060
5e60: c7ae5b20 c7ae5a60 c7b88800 c02e3ef0 c02e3e08 c7b1e400 c7afa060 c7b88800
5e80: 00000000 c0014da8 c7b44000 00000000 bec566ac c02cd400 c7afa060 c7afa060
5ea0: bec56800 c7b88800 c0014da8 c02cdd7c c04ee710 c04ee7b8 00000003 c005fc74
5ec0: 00000000 7fffffff c7b45f00 c7afa060 c7b67420 c7ba3070 00000004 c0014da8
5ee0: c7b44000 00000000 bec566ac c02ced88 c04e95f8 b6f5ab04 c7b45fb0 0145a468
5f00: 0145a600 bec566bc bec56800 c7b67420 c7ba3070 c00d499c c7b45f18 c7b45f18
5f20: 0000001a 00000004 00000001 c7b44000 c0527f40 00000009 00000008 00000000
5f40: c7b44000 c002c9ec 00000001 c04f0ab0 c04ebec0 00000101 00000000 0000000a
5f60: 60000093 c7b67420 bec56800 c25c4111 00000004 c0014da8 c7b44000 00000000
5f80: bec566ac c00d4f38 b6ffb658 00000000 c0522d80 0145a468 b6fd5000 0145a418
5fa0: 00000036 c0014c00 0145a468 b6fd5000 00000004 c25c4111 bec56800 00020001
5fc0: 0145a468 b6fd5000 0145a418 00000036 0145a468 0145a600 bec566bc bec566ac
5fe0: 0145a468 bec56388 b6f65ce4 b6dcebec 20000010 00000004 00000000 00000000
[] (snd_dmaengine_pcm_get_chan+0x8/0x10) from [] (snd_imx_pcm_hw_params+0x18/0xdc)
[] (snd_imx_pcm_hw_params+0x18/0xdc) from [] (soc_pcm_hw_params+0xe8/0x1f0)
[] (soc_pcm_hw_params+0xe8/0x1f0) from [] (snd_pcm_hw_params+0x124/0x474)
[] (snd_pcm_hw_params+0x124/0x474) from [] (snd_pcm_common_ioctl1+0x4b4/0xf74)
[] (snd_pcm_common_ioctl1+0x4b4/0xf74) from [] (snd_pcm_playback_ioctl1+0x30/0x510)
[] (snd_pcm_playback_ioctl1+0x30/0x510) from [] (do_vfs_ioctl+0x80/0x5e4)
[] (do_vfs_ioctl+0x80/0x5e4) from [] (sys_ioctl+0x38/0x60)
[] (sys_ioctl+0x38/0x60) from [] (ret_fast_syscall+0x0/0x2c)
Code: e593000c e12fff1e e59030a0 e59330bc (e5930000)
---[ end trace fa518c8ba3a74e97 ]--Reported-by: Javier Martin
Signed-off-by: Fabio Estevam
Acked-by: Sascha Hauer
Signed-off-by: Vinod Koul
Cc: stable@vger.kernel.org
