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2011-05-28Merge branch 'next' of ↵Linus Torvalds14-235/+618
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (33 commits) x86: poll waiting for I/OAT DMA channel status maintainers: add dma engine tree details dmaengine: add TODO items for future work on dma drivers dmaengine: Add API documentation for slave dma usage dmaengine/dw_dmac: Update maintainer-ship dmaengine: move link order dmaengine/dw_dmac: implement pause and resume in dwc_control dmaengine/dw_dmac: Replace spin_lock* with irqsave variants and enable submission from callback dmaengine/dw_dmac: Divide one sg to many desc, if sg len is greater than DWC_MAX_COUNT dmaengine/dw_dmac: set residue as total len in dwc_tx_status if status is !DMA_SUCCESS dmaengine/dw_dmac: don't call callback routine in case dmaengine_terminate_all() is called dmaengine: at_hdmac: pause: no need to wait for FIFO empty pch_dma: modify pci device table definition pch_dma: Support new device ML7223 IOH pch_dma: Support I2S for ML7213 IOH pch_dma: Fix DMA setting issue pch_dma: modify for checkpatch pch_dma: fix dma direction issue for ML7213 IOH video-in dmaengine: at_hdmac: use descriptor chaining help function dmaengine: at_hdmac: implement pause and resume in atc_control ... Fix up trivial conflict in drivers/dma/dw_dmac.c
2011-05-27x86: poll waiting for I/OAT DMA channel statusDimitri Sivanich1-2/+6
For certain system configurations a 5 usec udelay before checking I/OAT DMA channel status is sometimes not sufficient, resulting in a false failure status and unnecessary freeing of channel resources. Conversely, for many configurations 5 usec is longer than necessary. Loop for up to 20 usec waiting for successful status before failing. Signed-off-by: Dimitri Sivanich <sivanich@sgi.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-05-27dmaengine: add TODO items for future work on dma driversVinod Koul1-0/+14
Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-05-26mfd: Use mfd cell platform_data for timberdale cells platform bitsSamuel Ortiz1-2/+1
With the addition of a device platform mfd_cell pointer, MFD drivers can go back to passing platform data back to their sub drivers. This allows for an mfd_cell->mfd_data removal and thus keep the sub drivers MFD agnostic. This is mostly needed for non MFD aware sub drivers. Acked-by: Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-05-25dmaengine/dw_dmac: Update maintainer-shipViresh Kumar2-0/+3
Nobody is currently maintaining dw_dmac. We are using dw_dmac for SPEAr13xx and are currently maintaining it. After discussing with Vinod, sending this patch to update maintainer-ship of dw_dmac. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Havard Skinnemoen <hskinnemoen@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-25dmaengine: shdma: Update SH_DMAC_MAX_CHANNELS to 20Magnus Damm1-1/+1
Update SH_DMAC_MAX_CHANNELS to support the 20 DMA channels included in the sh73a0 SY-DMAC hardware. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-25dmaengine: shdma: Fix SH_DMAC_MAX_CHANNELS handlingMagnus Damm1-8/+23
Fix the shdma.c handing of SH_DMAC_MAX_CHANNELS to avoid overwriting the chan_irq[] and chan_flag[] arrays in the case of pdata->channel_num is larger than SH_DMAC_MAX_CHANNELS. With this patch applied up to SH_DMAC_MAX_CHANNELS will be used by the shdma.c driver. If more channels are available in the platform data the user will be notified on the console. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-25dmaengine: shdma: Make second memory window optionalMagnus Damm1-3/+8
This patch makes the shdma.c driver allow slave operation on DMA hardware mapped with a single I/O-memory window. The dmae_set_dmars() function is adjusted to use the first memory window in case of a missing DMARS window. At probe() time the code is updated to enable DMA_SLAVE only if slave information is passed with the platform data. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-24Merge branch 'sh-latest' of ↵Linus Torvalds2-44/+145
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits) sh: Ignore R_SH_NONE module relocations. SH: SE7751: Fix pcibios_map_platform_irq prototype. sh: remove warning and warning_symbol from struct stacktrace_ops sh: wire up sys_sendmmsg. clocksource: sh_tmu: Runtime PM support clocksource: sh_tmu: __clocksource_updatefreq_hz() update clocksource: sh_cmt: Runtime PM support clocksource: sh_cmt: __clocksource_updatefreq_hz() update dmaengine: shdma: synchronize RCU before freeing, simplify spinlock dmaengine: shdma: add runtime- and system-level power management dmaengine: shdma: fix locking sh: sh-sci: sh7377 and sh73a0 build fixes sh: cosmetic improvement: use an existing pointer serial: sh-sci: suspend/resume wakeup support V2 serial: sh-sci: Runtime PM support sh: select IRQ_FORCED_THREADING. sh: intc: Set virtual IRQs as nothread. sh: fixup fpu.o compile order i2c: add a module alias to the sh-mobile driver ALSA: add a module alias to the FSI driver ...
2011-05-23Merge branch 'for-linus' of ↵Linus Torvalds2-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) b43: fix comment typo reqest -> request Haavard Skinnemoen has left Atmel cris: typo in mach-fs Makefile Kconfig: fix copy/paste-ism for dell-wmi-aio driver doc: timers-howto: fix a typo ("unsgined") perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course'). treewide: fix a few typos in comments regulator: change debug statement be consistent with the style of the rest Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations" audit: acquire creds selectively to reduce atomic op overhead rtlwifi: don't touch with treewide double semicolon removal treewide: cleanup continuations and remove logging message whitespace ath9k_hw: don't touch with treewide double semicolon removal include/linux/leds-regulator.h: fix syntax in example code tty: fix typo in descripton of tty_termios_encode_baud_rate xtensa: remove obsolete BKL kernel option from defconfig m68k: fix comment typo 'occcured' arch:Kconfig.locks Remove unused config option. treewide: remove extra semicolons ...
2011-05-23Add appropriate <linux/prefetch.h> include for prefetch usersPaul Gortmaker3-0/+3
After discovering that wide use of prefetch on modern CPUs could be a net loss instead of a win, net drivers which were relying on the implicit inclusion of prefetch.h via the list headers showed up in the resulting cleanup fallout. Give them an explicit include via the following $0.02 script. ========================================= #!/bin/bash MANUAL="" for i in `git grep -l 'prefetch(.*)' .` ; do grep -q '<linux/prefetch.h>' $i if [ $? = 0 ] ; then continue fi ( echo '?^#include <linux/?a' echo '#include <linux/prefetch.h>' echo . echo w echo q ) | ed -s $i > /dev/null 2>&1 if [ $? != 0 ]; then echo $i needs manual fixup MANUAL="$i $MANUAL" fi done echo ------------------- 8\<---------------------- echo vi $MANUAL ========================================= Signed-off-by: Paul <paul.gortmaker@windriver.com> [ Fixed up some incorrect #include placements, and added some non-network drivers and the fib_trie.c case - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-23dmaengine: shdma: synchronize RCU before freeing, simplify spinlockGuennadi Liakhovetski1-8/+8
List elements, deleted using list_del_rcu(), cannot be freed without synchronising RCU. Further, the spinlock, used to protect the RCU writer, is called in process context, so, we don't have to save flags. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23dmaengine: shdma: add runtime- and system-level power managementGuennadi Liakhovetski2-0/+69
This patch extends and fixes runtime power management in the shdma driver to support powering down the DMA controller and adds support for system-level suspend and resume. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23dmaengine: shdma: fix lockingGuennadi Liakhovetski1-36/+68
Close multiple theoretical races, especially the one in .device_free_chan_resources(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-19dmaengine: move link orderLinus Walleij2-2/+2
Move the dmaengine subsystem up early in the drivers Makefile so DMA is made available early to all drivers, just like e.g. regulators. Now even regulators can use DMA on the same initlevel. As a result we can bump the ste_dma40 and coh901318 dmaengine drivers down one initlevel to subsys_init(). Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-19Haavard Skinnemoen has left AtmelJean Delvare2-2/+2
Haavard's e-mail address at Atmel is no longer valid. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Havard Skinnemoen <hskinnemoen@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-05-13dmaengine/dw_dmac: implement pause and resume in dwc_controlLinus Walleij2-20/+40
Some peripherals like amba-pl011 needs pause to be implemented in DMA controller drivers. This also returns correct status from dwc_tx_status() in case chan is paused. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-13dmaengine/dw_dmac: Replace spin_lock* with irqsave variants and enable ↵Viresh Kumar1-39/+77
submission from callback dmaengine routines can be called from interrupt context and with interrupts disabled. Whereas spin_unlock_bh can't be called from such contexts. So this patch converts all spin_*_bh routines to irqsave variants. Also, spin_lock() used in tasklet is converted to irqsave variants, as tasklet can be interrupted, and dma requests from such interruptions may also call spin_lock. Now, submission from callbacks are permitted as per dmaengine framework. So we shouldn't hold any locks while calling callbacks. As locks were taken by parent routines, so releasing them before calling callbacks doesn't look clean enough. So, locks are taken inside all routine now, whereever they are required. And dwc_descriptor_complete is always called without taking locks. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-13dmaengine/dw_dmac: Divide one sg to many desc, if sg len is greater than ↵Viresh Kumar1-21/+44
DWC_MAX_COUNT If len passed in sg for slave_sg transfers is greater than DWC_MAX_COUNT, then driver programmes controller incorrectly. This patch adds code to handle this situation by allocation more than one desc for same sg. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-13dmaengine/dw_dmac: set residue as total len in dwc_tx_status if status is ↵Viresh Kumar1-1/+5
!DMA_SUCCESS If transfer status is !=DMA_SUCCESS, return total transfer len as residue, instead of zero. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-13dmaengine/dw_dmac: don't call callback routine in case ↵Viresh Kumar1-14/+13
dmaengine_terminate_all() is called If dmaengine_terminate_all() is called for dma channel, then it doesn't make much sense to call registered callback routine. While in case of success or failure it must be called. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-12dmaengine: at_hdmac: pause: no need to wait for FIFO emptyNicolas Ferre1-16/+0
With the addition of the "pause" feature, an active wait was introduced to check the "FIFO empty" event. This event was not always happening and a timout contition was needed. But, in some cases, this event depend on the peripheral connected to the channel that is paused: FIFO becomes empty if the peripheral consumes data. The timeout is pretty difficult to evaluate. Moreover, this check is not needed. In conclusion, it seems sensible to entirely remove the checking of "FIFO empty" status when pausing. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> [commit msg edited for grammer] Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-09pch_dma: modify pci device table definitionTomoya MORINAGA1-1/+1
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-09pch_dma: Support new device ML7223 IOHTomoya MORINAGA2-5/+15
Support new device OKI SEMICONDUCTOR ML7223 IOH(Input/Output Hub). The ML7223 IOH is for MP(Media Phone) use. The ML7223 is companion chip for Intel Atom E6xx series. The ML7223 is completely compatible for Intel EG20T PCH. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-09pch_dma: Support I2S for ML7213 IOHTomoya MORINAGA1-15/+47
Support I2S device for ML7213 IOH Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-09pch_dma: Fix DMA setting issueTomoya MORINAGA1-7/+0
Currently, Direct-Start mode(*) is enabled. Our IOH's devices must not use this mode. This causes unexpected behavior. This patch deletes Direct-Start setting. (*) This mode is used in order for CPU to generate the DMA request. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-09pch_dma: modify for checkpatchTomoya MORINAGA1-3/+6
Fix checkpatch warnings. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-09pch_dma: fix dma direction issue for ML7213 IOH video-inTomoya MORINAGA1-3/+3
Currently, even-channel number is set as tx direction and odd is set as rx. However, though video-in uses ch6, the direction is not tx but rx. This patch sets video-in's DMA direction correctly. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-09dmaengine: at_hdmac: use descriptor chaining help functionNicolas Ferre1-30/+3
A little function helps to chain descriptors: it is already used in cyclic dma operations, now use it in memcpy and slave_sg preparation functions. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-09dmaengine: at_hdmac: implement pause and resume in atc_controlNicolas Ferre2-27/+71
Pause and resume controls are useful for audio devices. This also returns correct status from atc_tx_status() in case chan is paused. Idea from dw_dmac patch by Linus Walleij. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-09dmaengine: at_hdmac: set residue as total len in atc_tx_statusNicolas Ferre1-1/+6
If transfer status is !=DMA_SUCCESS, return total transfer len as residue, instead of zero. Idea from dw_dmac patch by Viresh Kumar. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-09dmaengine/ste_dma40: fix introduced warningsPhilippe Langlais1-1/+1
The compiler nowadays moans about possibly non-assigned variable. Fix this by default-assigning 0. Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-02dmaengine: at_hdmac: specialize AHB interfaces to optimize transfersNicolas Ferre2-11/+19
DMA controller has two AHB interfaces on the SOC internal matrix. It is more efficient to specialize each interface as the access to memory can introduce latencies that are not compatible with peripheral accesses requirements. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-02dmaengine: at_hdmac: remove channel status testing in taskletNicolas Ferre1-7/+0
There is no need to test if channel is enabled in tasklet: - in error path, channel is disabled in interrupt routine - in normal path, this test is performed in sub functions to report a misuse of the engine. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-02dmaengine: at_hdmac: debug information sg_len for prep_slave_sgNicolas Ferre1-1/+2
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-02dmaengine: at_hdmac: add cyclic DMA operation supportNicolas Ferre2-16/+229
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-05-02dmaengine: at_hdmac: modify way to use interruptsNicolas Ferre2-5/+10
Now we use Buffer Transfer Completed interrupts. If we want a chained buffer completed information, we setup the ATC_IEN bit in CTRLB register in the lli. This is done by set_desc_eol() function and used by memcpy/slave_sg functions. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-04-26treewide: cleanup continuations and remove logging message whitespaceJoe Perches1-2/+2
Using C line continuation inside format strings is error prone. Clean up the unintended whitespace introduced by misuse of \. Neaten correctly used line continations as well for consistency. drivers/scsi/arcmsr/arcmsr_hba.c has these errors as well, but arcmsr needs a lot more work and the driver should likely be moved to staging instead. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-04-12Merge branch 'spi/merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds1-1/+1
* 'spi/merge' of git://git.secretlab.ca/git/linux-2.6: dt/fsldma: fix build warning caused by of_platform_device changes spi: Fix race condition in stop_queue() gpio/pch_gpio: Fix output value of pch_gpio_direction_output() gpio/ml_ioh_gpio: Fix output value of ioh_gpio_direction_output() gpio/pca953x: fix error handling path in probe() call
2011-04-11dt/fsldma: fix build warning caused by of_platform_device changesIra W. Snyder1-1/+1
Commit 000061245a6797d542854106463b6b20fbdcb12e, "dt/powerpc: Eliminate users of of_platform_{,un}register_driver" forgot to convert the type of structure passed into platform_device_register() when it was converted from of_platform_device_register. Fix it. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-04-07Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds1-1/+6
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: select ARCH_NO_SYSDEV_OPS. sh: fix build error in board-sh7757lcr.c sh: landisk: Remove whitespace sh: landisk: Remove mv_nr_irqs sh: sh-sci: Fix double initialization by serial_console_setup serial: sh-sci: prevent setup of uninitialized serial console dma: shdma: add checking the DMAOR_AE in sh_dmae_err
2011-04-06drivers, pch_dma: Fix uninitialized var before useLiu Yuan1-1/+1
In the function pdc_desc_get(), var 'i' is not initialized before use. This patch fixes it. Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-04-06Merge branch 'old_next' into nextVinod Koul5-14/+28
2011-04-01intel_mid_dma: fix runtime pm issuesKristen Carlson Accardi1-4/+13
Use the correct api in probe to enable runtime pm for this driver. Additionally, do not just call legacy suspend for runtime_suspend, as this duplicates some work the pci core does for you. Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-03-31Fix common misspellingsLucas De Marchi6-11/+11
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31dma: use BUG_ON correctly in ppc4xx/adam.c, v4Coly Li1-4/+4
This patch makes BUG_ON() usage correct in drivers/dma/ppc4xx/adam.c Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Anatolij Gustschin <agust@denx.de> Cc: Sean MacLennan <smaclennan@pikatech.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Coly Li <bosong.ly@taobao.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-03-31dma: use BUG_ON correctly in mv_xor.c, v4Coly Li1-3/+3
This patch makes BUG_ON() usage correct in drivers/dma/mv_xor.c Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Coly Li <bosong.ly@taobao.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-03-31dma: use BUG_ON correctly in iop-adma.c, v4Coly Li1-3/+3
This patch makes BUG_ON() usage correct in drivers/dma/iop-adma.c. Cc: Dan Williams <dan.j.williams@intel.com> Cc: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Coly Li <bosong.ly@taobao.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-03-31dmaengine/dw_dmac fix: dwc_scan_descriptors must compare first desc address ↵Viresh Kumar1-0/+5
also with llp dwc_scan_descriptors scans all descriptors from active_list in case transfer is not completed. It compares first_desc->lli.llp, and then all childrens of its tx_list. But it doesn't compare its own address, i.e. first_desc->txd.phys, as this is what we have initially programmed into the controller register. So this causes dma to stop and finish a transfer, which was never started. And thus fail. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-03-29dma: shdma: add checking the DMAOR_AE in sh_dmae_errYoshihiro Shimoda1-1/+6
The irq numbers of tranfer end and address error are assigned same number on some CPU. So the sh_dmae_err() should check the AE flag in DMAOR. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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