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* dma: drop owner assignment from platform_driversWolfram Sang2014-10-20
| | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* dmaengine: Remove the context argument to the prep_dma_cyclic operationLaurent Pinchart2014-08-04
| | | | | | | The argument is always set to NULL and never used. Remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dma: imx-dma: Add missing module owner fieldAlexander Shiyan2014-03-06
| | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dma: imx-dma: Replace printk with dev_*Alexander Shiyan2014-03-06
| | | | | | | Use the dev_* message logging API instead of raw printk. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* Merge branch 'for-linus' into nextVinod Koul2013-10-31
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| * dmaengine: imx-dma: fix format warningsRussell King2013-10-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <rmk+kernel@arm.linux.org.uk> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* | dmaengine: imx-dma: use DMA_COMPLETE for dma completion statusVinod Koul2013-10-25
|/ | | | | | Acked-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: imx-dma: fix callback path in taskletMichael Grzeschik2013-10-04
| | | | | | | | | | 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 <m.grzeschik@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: imx-dma: fix lockdep issue between irqhandler and taskletMichael Grzeschik2013-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: [<c019d77c>] imxdma_tasklet+0x20/0x134 [ 403.395201] {IN-HARDIRQ-W} state was registered at: [ 403.400108] [<c004b264>] mark_lock+0x2a0/0x6b4 [ 403.404798] [<c004d7c8>] __lock_acquire+0x650/0x1a64 [ 403.410004] [<c004f15c>] lock_acquire+0x94/0xa8 [ 403.414773] [<c02f74e4>] _raw_spin_lock+0x54/0x8c [ 403.419720] [<c019d094>] dma_irq_handler+0x78/0x254 [ 403.424845] [<c0061124>] handle_irq_event_percpu+0x38/0x1b4 [ 403.430670] [<c00612e4>] handle_irq_event+0x44/0x64 [ 403.435789] [<c0063a70>] handle_level_irq+0xd8/0xf0 [ 403.440903] [<c0060a20>] generic_handle_irq+0x28/0x38 [ 403.446194] [<c0009cc4>] handle_IRQ+0x68/0x8c [ 403.450789] [<c0008714>] avic_handle_irq+0x3c/0x48 [ 403.455811] [<c0008f84>] __irq_svc+0x44/0x74 [ 403.460314] [<c0040b04>] cpu_startup_entry+0x88/0xf4 [ 403.465525] [<c02f00d0>] rest_init+0xb8/0xe0 [ 403.470045] [<c03e07dc>] start_kernel+0x28c/0x2d4 [ 403.474986] [<a0008040>] 0xa0008040 [ 403.478709] irq event stamp: 50854 [ 403.482140] hardirqs last enabled at (50854): [<c001c6b8>] tasklet_action+0x38/0xdc [ 403.489954] hardirqs last disabled at (50853): [<c001c6a0>] tasklet_action+0x20/0xdc [ 403.497761] softirqs last enabled at (50850): [<c001bc64>] _local_bh_enable+0x14/0x18 [ 403.505741] softirqs last disabled at (50851): [<c001c268>] 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] <Interrupt> [ 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] [<c000b98c>] (dump_backtrace+0x0/0x10c) from [<c000bb28>] (show_stack+0x18/0x1c) [ 403.574054] r6:00000000 r5:c05c51d8 r4:c040bd58 r3:00200000 [ 403.579872] [<c000bb10>] (show_stack+0x0/0x1c) from [<c02f398c>] (dump_stack+0x20/0x28) [ 403.587955] [<c02f396c>] (dump_stack+0x0/0x28) from [<c02f29c8>] (print_usage_bug.part.28+0x224/0x28c) [ 403.597340] [<c02f27a4>] (print_usage_bug.part.28+0x0/0x28c) from [<c004b404>] (mark_lock+0x440/0x6b4) [ 403.606682] r8:c004a41c r7:00000000 r6:c040bd58 r5:c040c040 r4:00000002 [ 403.613566] [<c004afc4>] (mark_lock+0x0/0x6b4) from [<c004d844>] (__lock_acquire+0x6cc/0x1a64) [ 403.622244] [<c004d178>] (__lock_acquire+0x0/0x1a64) from [<c004f15c>] (lock_acquire+0x94/0xa8) [ 403.631010] [<c004f0c8>] (lock_acquire+0x0/0xa8) from [<c02f74e4>] (_raw_spin_lock+0x54/0x8c) [ 403.639614] [<c02f7490>] (_raw_spin_lock+0x0/0x8c) from [<c019d77c>] (imxdma_tasklet+0x20/0x134) [ 403.648434] r6:c3847010 r5:c040e890 r4:c38470d4 [ 403.653194] [<c019d75c>] (imxdma_tasklet+0x0/0x134) from [<c001c70c>] (tasklet_action+0x8c/0xdc) [ 403.662013] r8:c0599160 r7:00000000 r6:00000000 r5:c040e890 r4:c3847114 r3:c019d75c [ 403.670042] [<c001c680>] (tasklet_action+0x0/0xdc) from [<c001bd4c>] (__do_softirq+0xe4/0x1f0) [ 403.678687] r7:00000101 r6:c0402000 r5:c059919c r4:00000001 [ 403.684498] [<c001bc68>] (__do_softirq+0x0/0x1f0) from [<c001c268>] (irq_exit+0x88/0xdc) [ 403.692652] [<c001c1e0>] (irq_exit+0x0/0xdc) from [<c0009cc8>] (handle_IRQ+0x6c/0x8c) [ 403.700514] r4:00000030 r3:00000110 [ 403.704192] [<c0009c5c>] (handle_IRQ+0x0/0x8c) from [<c0008714>] (avic_handle_irq+0x3c/0x48) [ 403.712664] r5:c0403f28 r4:c0593ebc [ 403.716343] [<c00086d8>] (avic_handle_irq+0x0/0x48) from [<c0008f84>] (__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] [<c0009e30>] (arch_cpu_idle+0x0/0x4c) from [<c0040b04>] (cpu_startup_entry+0x88/0xf4) [ 403.766161] [<c0040a7c>] (cpu_startup_entry+0x0/0xf4) from [<c02f00d0>] (rest_init+0xb8/0xe0) [ 403.774753] [<c02f0018>] (rest_init+0x0/0xe0) from [<c03e07dc>] (start_kernel+0x28c/0x2d4) [ 403.783051] r6:c03fc484 r5:ffffffff r4:c040a0e0 [ 403.787797] [<c03e0550>] (start_kernel+0x0/0x2d4) from [<a0008040>] (0xa0008040) Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: imx-dma: fix slow path issue in prep_dma_cyclicMichael Grzeschik2013-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: [<c000b98c>] (dump_backtrace+0x0/0x10c) from [<c000bb28>] (show_stack+0x18/0x1c) r6:c004c090 r5:00000009 r4:c2e0bd18 r3:00404000 [<c000bb10>] (show_stack+0x0/0x1c) from [<c02f397c>] (dump_stack+0x20/0x28) [<c02f395c>] (dump_stack+0x0/0x28) from [<c001531c>] (warn_slowpath_common+0x54/0x70) [<c00152c8>] (warn_slowpath_common+0x0/0x70) from [<c00153dc>] (warn_slowpath_fmt+0x38/0x40) r8:00004000 r7:a3b90000 r6:000080d0 r5:60000093 r4:c2e0a000 r3:00000009 [<c00153a4>] (warn_slowpath_fmt+0x0/0x40) from [<c004c090>] (lockdep_trace_alloc+0xcc/0x114) r3:c03955d8 r2:c03907db [<c004bfc4>] (lockdep_trace_alloc+0x0/0x114) from [<c008f16c>] (__kmalloc+0x34/0x118) r6:000080d0 r5:c3800120 r4:000080d0 r3:c040a0f8 [<c008f138>] (__kmalloc+0x0/0x118) from [<c019c95c>] (imxdma_prep_dma_cyclic+0x64/0x168) r7:a3b90000 r6:00000004 r5:c39d8420 r4:c3847150 [<c019c8f8>] (imxdma_prep_dma_cyclic+0x0/0x168) from [<c024618c>] (snd_dmaengine_pcm_trigger+0xa8/0x160) [<c02460e4>] (snd_dmaengine_pcm_trigger+0x0/0x160) from [<c0241fa8>] (soc_pcm_trigger+0x90/0xb4) r8:c058c7b0 r7:c3b8140c r6:c39da560 r5:00000001 r4:c3b81000 [<c0241f18>] (soc_pcm_trigger+0x0/0xb4) from [<c022ece4>] (snd_pcm_do_start+0x2c/0x38) r7:00000000 r6:00000003 r5:c058c7b0 r4:c3b81000 [<c022ecb8>] (snd_pcm_do_start+0x0/0x38) from [<c022e958>] (snd_pcm_action_single+0x40/0x6c) [<c022e918>] (snd_pcm_action_single+0x0/0x6c) from [<c022ea64>] (snd_pcm_action_lock_irq+0x7c/0x9c) r7:00000003 r6:c3b810f0 r5:c3b810f0 r4:c3b81000 [<c022e9e8>] (snd_pcm_action_lock_irq+0x0/0x9c) from [<c023009c>] (snd_pcm_common_ioctl1+0x7f8/0xfd0) r8:c3b7f888 r7:005407b8 r6:c2c991c0 r5:c3b81000 r4:c3b81000 r3:00004142 [<c022f8a4>] (snd_pcm_common_ioctl1+0x0/0xfd0) from [<c023117c>] (snd_pcm_playback_ioctl1+0x464/0x488) [<c0230d18>] (snd_pcm_playback_ioctl1+0x0/0x488) from [<c02311d4>] (snd_pcm_playback_ioctl+0x34/0x40) r8:c3b7f888 r7:00004142 r6:00000004 r5:c2c991c0 r4:005407b8 [<c02311a0>] (snd_pcm_playback_ioctl+0x0/0x40) from [<c00a14a4>] (vfs_ioctl+0x30/0x44) [<c00a1474>] (vfs_ioctl+0x0/0x44) from [<c00a1fe8>] (do_vfs_ioctl+0x55c/0x5c0) [<c00a1a8c>] (do_vfs_ioctl+0x0/0x5c0) from [<c00a208c>] (SyS_ioctl+0x40/0x68) [<c00a204c>] (SyS_ioctl+0x0/0x68) from [<c0009380>] (ret_fast_syscall+0x0/0x44) r8:c0009544 r7:00000036 r6:bedeaa58 r5:00000000 r4:000000c0 Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dma: imx-dma: Remove redundant NULL checkSachin Kamat2013-09-02
| | | | | | | | | kfree on a NULL pointer is a no-op. Null pointer check is not necessary. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* DMA: imx-dma: imxdma->dev used uninitializedMarkus Pargmann2013-07-05
| | | | | | | | | imxdma->dev is used for dev_warn before it was set. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Reviewed-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dma: imx-dma: Add oftree supportMarkus Pargmann2013-07-05
| | | | | | | | | | | | 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 <mpa@pengutronix.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dma: imx-dma: Remove redundant NULL check before kfreeSyam Sidhardhan2013-04-15
| | | | | | | kfree on NULL pointer is a no-op. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dma: Remove erroneous __exit and __exit_p() referencesMaxin B. John2013-04-15
| | | | | | | | | | | 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 <maxin.john@enea.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* Merge 3.8-rc5 into driver-core-nextGreg Kroah-Hartman2013-01-26
|\ | | | | | | | | | | This resolves a gpio driver merge issue pointed out in linux-next. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * dmaengine: imx-dma: Disable use of hw_chain to fix sg_dma transfers.Javier Martin2013-01-08
| | | | | | | | | | | | | | | | | | | | | | 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 <javier.martin@vista-silicon.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* | dma: Convert to devm_ioremap_resource()Thierry Reding2013-01-25
|/ | | | | | | | | | | | 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 <thierry.reding@avionic-design.de> Cc: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge branch 'arm-next' of git://git.xilinx.com/linux-xlnx into next/cleanupOlof Johansson2012-11-06
|\ | | | | | | | | | | | | | | | | | | | | 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
| * dmaengine: imx-dma: fix missing unlock on error in imxdma_xfer_desc()Wei Yongjun2012-10-23
| | | | | | | | | | | | | | | | | | Add the missing unlock on the error handling path in function imxdma_xfer_desc(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: stable <stable@vger.kernel.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
* | dma: imx-dma: remove cpu_is_xxx by using platform_device_idShawn Guo2012-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <shawn.guo@linaro.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Javier Martin <javier.martin@vista-silicon.com> Cc: Vinod Koul <vinod.koul@linux.intel.com>
* | dma: imx-dma: retrieve MEM and IRQ from resourcesShawn Guo2012-10-14
| | | | | | | | | | | | | | | | | | | | Retrieve MEM and IRQ from resources rather than directly using the value by including machine header. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Vinod Koul <vinod.koul@linux.intel.com>
* | dma: imx-dma: use devm_kzalloc and devm_request_irqShawn Guo2012-10-14
|/ | | | | | | | | | Use managed functions devm_kzalloc and devm_request_irq instead to make the error patch simpler. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Vinod Koul <vinod.koul@linux.intel.com>
* Merge tag 'sound-3.7' of ↵Linus Torvalds2012-10-08
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 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 ...
| * dmaengine: Pass flags via device_prep_dma_cyclic() callbackPeter Ujfalusi2012-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | 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 <peter.ujfalusi@ti.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | Merge tag 'multiplatform' of ↵Linus Torvalds2012-10-01
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc 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-<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-<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 ...
| * | ARM: imx: move platform_data definitionsArnd Bergmann2012-09-14
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Sascha Hauer <kernel@pengutronix.de> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Dan Williams <djbw@fb.com> Cc: "Ben Dooks (embedded platforms)" <ben-linux@fluff.org> Cc: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Alan Cox <alan@linux.intel.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Liam Girdwood <lrg@ti.com> Cc: Javier Martin <javier.martin@vista-silicon.com> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
* | Merge branch 'for-linus' of ↵Linus Torvalds2012-10-01
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 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 ...
| * dma: fix commentsMasanari Iida2012-09-01
| | | | | | | | | | | | | | Correct spelling typo in drivers/dma. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | dma: imx-dma: Fix kernel crash due to missing clock conversionFabio Estevam2012-07-26
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 : [<c02d3cf8>] lr : [<c02e95ec>] 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 [<c02d3cf8>] (snd_dmaengine_pcm_get_chan+0x8/0x10) from [<c02e95ec>] (snd_imx_pcm_hw_params+0x18/0xdc) [<c02e95ec>] (snd_imx_pcm_hw_params+0x18/0xdc) from [<c02e3ef0>] (soc_pcm_hw_params+0xe8/0x1f0) [<c02e3ef0>] (soc_pcm_hw_params+0xe8/0x1f0) from [<c02cd400>] (snd_pcm_hw_params+0x124/0x474) [<c02cd400>] (snd_pcm_hw_params+0x124/0x474) from [<c02cdd7c>] (snd_pcm_common_ioctl1+0x4b4/0xf74) [<c02cdd7c>] (snd_pcm_common_ioctl1+0x4b4/0xf74) from [<c02ced88>] (snd_pcm_playback_ioctl1+0x30/0x510) [<c02ced88>] (snd_pcm_playback_ioctl1+0x30/0x510) from [<c00d499c>] (do_vfs_ioctl+0x80/0x5e4) [<c00d499c>] (do_vfs_ioctl+0x80/0x5e4) from [<c00d4f38>] (sys_ioctl+0x38/0x60) [<c00d4f38>] (sys_ioctl+0x38/0x60) from [<c0014c00>] (ret_fast_syscall+0x0/0x2c) Code: e593000c e12fff1e e59030a0 e59330bc (e5930000) ---[ end trace fa518c8ba3a74e97 ]-- Reported-by: Javier Martin <javier.martin@vista-silicon.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Cc: stable@vger.kernel.org
* dmaengine: Use dma_sg_len(sg) instead of sg->lengthLars-Peter Clausen2012-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sg->length may or may not contain the length of the dma region to transfer, depending on the architecture - dma_sg_len(sg) always will though. For the architectures which use the drivers modified by this patch it probably is the case that sg->length contains the dma transfer length. But to be consistent and future proof change them to use dma_sg_len. To quote Russel King: sg->length is meaningless to something performing DMA. In cases where sg_dma_len(sg) and sg->length are the same storage, then there's no problem. But scatterlists _can_ (and one some architectures) do split them - especially when you have an IOMMU which can allow you to combine a scatterlist into fewer entries. So, anything using sg->length for the size of a scatterlist's DMA transfer _after_ a call to dma_map_sg() is almost certainly buggy. The patch has been generated using the following coccinelle patch: <smpl> @@ struct scatterlist *sg; expression X; @@ -sg[X].length +sg_dma_len(&sg[X]) @@ struct scatterlist *sg; @@ -sg->length +sg_dma_len(sg) </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
* dmaengine: imx-dma: dont complete descriptor for cyclic dmaVinod Koul2012-04-20
| | | | | | | | | | the cookie updates completed the cyclic dma descriptor wrongly. This caused the BUG_ON to be hit as submit is called for completed descriptor Fix this by not marking the cyclic descriptor as complete Tested-by: Javier Martin <javier.martin@vista-silicon.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
* Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds2012-03-29
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull slave-dmaengine update from Vinod Koul: "This includes the cookie cleanup by Russell, the addition of context parameter for dmaengine APIs, more arm dmaengine driver cleanup by moving code to dmaengine, this time for imx by Javier and pl330 by Boojin along with the usual driver fixes." Fix up some fairly trivial conflicts with various other cleanups. * 'next' of git://git.infradead.org/users/vkoul/slave-dma: (67 commits) dmaengine: imx: fix the build failure on x86_64 dmaengine: i.MX: Fix merge of cookie branch. dmaengine: i.MX: Add support for interleaved transfers. dmaengine: imx-dma: use 'dev_dbg' and 'dev_warn' for messages. dmaengine: imx-dma: remove 'imx_dmav1_baseaddr' and 'dma_clk'. dmaengine: imx-dma: remove unused arg of imxdma_sg_next. dmaengine: imx-dma: remove internal structure. dmaengine: imx-dma: remove 'resbytes' field of 'internal' structure. dmaengine: imx-dma: remove 'in_use' field of 'internal' structure. dmaengine: imx-dma: remove sg member from internal structure. dmaengine: imx-dma: remove 'imxdma_setup_sg_hw' function. dmaengine: imx-dma: remove 'imxdma_config_channel_hw' function. dmaengine: imx-dma: remove 'imxdma_setup_mem2mem_hw' function. dmaengine: imx-dma: remove dma_mode member of internal structure. dmaengine: imx-dma: remove data member from internal structure. dmaengine: imx-dma: merge old dma-v1.c with imx-dma.c dmaengine: at_hdmac: add slave config operation dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic dmaengine/dma_slave: introduce inline wrappers dma: imx-sdma: Treat firmware messages as warnings instead of erros ...
| * dmaengine: i.MX: Fix merge of cookie branch.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | When merging DMA cookie changes a small chunk of code was dropped. This broke imx-dma driver. This patch adds this chunk again and fixes the problem. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: i.MX: Add support for interleaved transfers.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | i.MX2 and i.MX1 chips have the possibility to do interleaved transfers with two constraints: - Only one chunk can be used (i.e. only 2D transfers are allowed). - Only 2 interleaved configurations can be applied at the same time for all channels. Since this patch adds a new resource 'slots_2d' which is shared by all the DMA channels and to avoid disgustin locking BUGs, the 'lock' member has been moved to the global 'imxdma_engine' structure. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: use 'dev_dbg' and 'dev_warn' for messages.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | There were some 'pr_crit' and 'pr_debug' messages due to the initial merge. Replace them by 'dev_dbg' and 'dev_warn' to be consistent. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove 'imx_dmav1_baseaddr' and 'dma_clk'.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | These global variables are integrated into the dmaengine structure. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove unused arg of imxdma_sg_next.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | Since this function is always used with 'desc' as first argument and 'desc->sg' as second argument, the latter is clearly redundant and can be removed. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove internal structure.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | | | This structure was created to allow an smoothless merge but was meant to be removed. Remaining members 'hw_chaining' and 'watchdog' are moved to the channel structure. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove 'resbytes' field of 'internal' structure.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | Use per-descriptor 'len' field to keep track of the remaining bytes instead. This goes on the direction of eventually removing the 'internal' structure. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove 'in_use' field of 'internal' structure.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | It makes no sense keeping an 'in_use' flag when the multiple descriptor mechanism already prevents a new DMA transfer to be issued when another one is in course. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove sg member from internal structure.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | This member is redundant, because it is already present in descriptor structure. Removing it will make further removing of 'internal' structure easier. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove 'imxdma_setup_sg_hw' function.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | | | Removing this function allows moving 'ccr_to_device' and 'ccr_from_device' from internal struct to channel struct. This repesents a step forward towards removing auxiliary 'internal' structure. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove 'imxdma_config_channel_hw' function.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | This function is only used once in the driver and uses some intermediary variables that are not needed anymore. For this reason it's been merged with 'imxdma_control'. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove 'imxdma_setup_mem2mem_hw' function.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | This function is only used once in the driver and has a lot of checks that are not needed anymore. For this reason it's been merged with 'imxdma_enable_hw'. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove dma_mode member of internal structure.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | | | dmaengine now provides 'enum dma_transfer_direction' to properly specify DMA transfer direction. For this reason, DMA_MODE_* defines are replaced by this new type and therefore dma_mode member becomes redundant. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: remove data member from internal structure.Javier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | Internal structure is just an auxiliary structure used for the initial merge which is meant to be gone. As data member is not use anywhere we can simply remove it. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: imx-dma: merge old dma-v1.c with imx-dma.cJavier Martin2012-03-26
| | | | | | | | | | | | | | | | | | | | | | | | It is mainly a simple merge changing the prefix of some functions to fit the imx-dma namings. As there are no users of the old dma-v1.c api we can safely remove this file. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclicAlexandre Bounine2012-03-21
| | | | | | | | | | | | | | | | | | | | | | | | Add context parameter to device_prep_slave_sg() and device_prep_dma_cyclic() interfaces to allow passing client/target specific information associated with the data transfer. Modify all affected DMA engine drivers. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
| * Merge branch 'rmk_cookie_fixes2' into nextVinod Koul2012-03-13
| |\ | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/dma/imx-dma.c drivers/dma/pl330.c Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
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