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2011-02-26pch_dma: set the number of array correctlyTomoya MORINAGA1-2/+2
set the number of array correctly. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-02-26pch_dma: fix kernel error issueTomoya MORINAGA1-15/+14
fix the following kernel error ------------[ cut here ]------------ WARNING: at kernel/softirq.c:159 _local_bh_enable_ip.clone.5+0x35/0x71() Hardware name: To be filled by O.E.M. Modules linked in: pch_uart pch_dma fuse mga drm cpufreq_ondemand acpi_cpufreq mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables ipv6 uinput snd_hda_codec_realtek snd_hda_intel snd_hda_codec matroxfb_base snd_hwdep 8250_pnp snd_seq snd_seq_device matroxfb_DAC1064 snd_pcm joydev 8250 matroxfb_accel snd_timer matroxfb_Ti3026 ppdev pegasus parport_pc snd parport matroxfb_g450 g450_pll serial_core video output matroxfb_misc soundcore snd_page_alloc serio_raw pcspkr ext4 jbd2 crc16 sdhci_pci sdhci mmc_core floppy [last unloaded: scsi_wait_scan] Pid: 0, comm: swapper Not tainted 2.6.37.upstream_check+ #8 Call Trace: [<c0433add>] warn_slowpath_common+0x65/0x7a [<c043825b>] ? _local_bh_enable_ip.clone.5+0x35/0x71 [<c0433b01>] warn_slowpath_null+0xf/0x13 [<c043825b>] _local_bh_enable_ip.clone.5+0x35/0x71 [<c043829f>] local_bh_enable_ip+0x8/0xa [<c06ec471>] _raw_spin_unlock_bh+0x10/0x12 [<f82b57dd>] pd_prep_slave_sg+0xba/0x200 [pch_dma] [<f82f7b7a>] pch_uart_interrupt+0x44d/0x6aa [pch_uart] [<c046fa97>] handle_IRQ_event+0x1d/0x9e [<c047146f>] handle_fasteoi_irq+0x90/0xc7 [<c04713df>] ? handle_fasteoi_irq+0x0/0xc7 <IRQ> [<c04045af>] ? do_IRQ+0x3e/0x89 [<c04035a9>] ? common_interrupt+0x29/0x30 [<c04400d8>] ? sys_getpriority+0x12d/0x1a2 [<c058bb2b>] ? arch_local_irq_enable+0x5/0xb [<c058c740>] ? acpi_idle_enter_bm+0x22a/0x261 [<c0648b11>] ? cpuidle_idle_call+0x70/0xa1 [<c0401f44>] ? cpu_idle+0x49/0x6a [<c06d9fc4>] ? rest_init+0x58/0x5a [<c089e762>] ? start_kernel+0x2d0/0x2d5 [<c089e0ce>] ? i386_start_kernel+0xce/0xd5 Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-02-14Merge branch 'dw_dmac' into dmaengineDan Williams3-14/+33
2011-02-14Merge branch 'dma40' into dmaengineDan Williams4-947/+761
2011-02-14Merge branch 'imx' into dmaengine-fixesDan Williams2-39/+63
2011-02-14dma: ipu_idmac: do not lose valid received data in the irq handlerAnatolij Gustschin1-50/+0
Currently when two or more buffers are queued by the camera driver and so the double buffering is enabled in the idmac, we lose one frame comming from CSI since the reporting of arrival of the first frame is deferred by the DMAIC_7_EOF interrupt handler and reporting of the arrival of the last frame is not done at all. So when requesting N frames from the image sensor we actually receive N - 1 frames in user space. The reason for this behaviour is that the DMAIC_7_EOF interrupt handler misleadingly assumes that the CUR_BUF flag is pointing to the buffer used by the IDMAC. Actually it is not the case since the CUR_BUF flag will be flipped by the FSU when the FSU is sending the <TASK>_NEW_FRM_RDY signal when new frame data is delivered by the CSI. When sending this singal, FSU updates the DMA_CUR_BUF and the DMA_BUFx_RDY flags: the DMA_CUR_BUF is flipped, the DMA_BUFx_RDY is cleared, indicating that the frame data is beeing written by the IDMAC to the pointed buffer. DMA_BUFx_RDY is supposed to be set to the ready state again by the MCU, when it has handled the received data. DMAIC_7_CUR_BUF flag won't be flipped here by the IPU, so waiting for this event in the EOF interrupt handler is wrong. Actually there is no spurious interrupt as described in the comments, this is the valid DMAIC_7_EOF interrupt indicating reception of the frame from CSI. The patch removes code that waits for flipping of the DMAIC_7_CUR_BUF flag in the DMAIC_7_EOF interrupt handler. As the comment in the current code denotes, this waiting doesn't help anyway. As a result of this removal the reporting of the first arrived frame is not deferred to the time of arrival of the next frame and the drivers software flag 'ichan->active_buffer' is in sync with DMAIC_7_CUR_BUF flag, so the reception of all requested frames works. This has been verified on the hardware which is triggering the image sensor by the programmable state machine, allowing to obtain exact number of frames. On this hardware we do not tolerate losing frames. This patch also removes resetting the DMA_BUFx_RDY flags of all channels in ipu_disable_channel() since transfers on other DMA channels might be triggered by other running tasks and the buffers should always be ready for data sending or reception. Signed-off-by: Anatolij Gustschin <agust@denx.de> Reviewed-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Tested-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-31Merge branch 'dmaengine-shawn' into dmaengineSascha Hauer1-10/+6
2011-01-31Merge branch 'dmaengine-sdma' into dmaengineSascha Hauer1-25/+35
2011-01-31dmaengine: imx-sdma: fix up param for the last BD in sdma_prep_slave_sg()Shawn Guo1-1/+4
As per the reference manual, bit "L" should be set while bit "C" should be cleared for the last buffer descriptor in the non-cyclic chain, so that sdma can stop trying to find the next BD and end the transfer. In case of sdma_prep_slave_sg(), BD_LAST needs to be set and BD_CONT be cleared for the last BD. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine: imx-sdma: correct sdmac->status in sdma_handle_channel_loop()Shawn Guo1-1/+1
sdma_handle_channel_loop() is the handler of cyclic tx. One period success does not really mean the success of the tx. Instead of DMA_SUCCESS, DMA_IN_PROGRESS should be the one to tell. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine: imx-sdma: return sdmac->status in sdma_tx_status()Shawn Guo1-3/+1
The sdmac->status was designed to reflect the status of the tx, so simply return it in sdma_tx_status(). Then dma client can call dma_async_is_tx_complete() to know the status of the tx. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine: imx-sdma: set sdmac->status to DMA_ERROR in err_out of ↵Shawn Guo1-0/+1
sdma_prep_slave_sg() sdma_prep_dma_cyclic() sets sdmac->status to DMA_ERROR in err_out, and sdma_prep_slave_sg() needs to do the same. Otherwise, sdmac->status stays at DMA_IN_PROGRESS, which will make the function return immediately next time it gets called. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine: imx-sdma: remove IMX_DMA_SG_LOOP handling in sdma_prep_slave_sg()Shawn Guo1-6/+0
This is a leftover from the time that the driver did not have sdma_prep_dma_cyclic callback and implemented sound dma as a looped sg chain. And it can be removed now. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX dma: initialize dma capabilities outside channel loopSascha Hauer1-3/+3
The capabilities are device specific fields, not channel specific fields. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX DMA: do not initialize chan_id fieldSascha Hauer1-1/+0
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX dma: check sg entries for valid addresses and lengthsSascha Hauer1-0/+15
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX dma: set maximum segment size for our deviceSascha Hauer1-0/+4
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX SDMA: reserve channel 0 by not registering itSascha Hauer1-18/+12
We need channel 0 of the sdma engine for internal purposes. We accomplished this by calling dma_request_channel() in the probe function. This does not work when multiple dma engines are present which is the case when IPU support for i.MX31/35 is compiled in. So instead of registering channel 0 and reserving it afterwards simply do not register it in the first place. With this the dmaengine channel counting does not match sdma channel counting anymore, so we have to use sdma channel counting in the driver. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX SDMA: initialize dma capabilities outside channel loopSascha Hauer1-3/+3
The capabilities are device specific fields, not channel specific fields. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX SDMA: do not initialize chan_id fieldSascha Hauer1-1/+0
This is bogus as the dmaengine core will overwrite this field. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX sdma: check sg entries for valid addresses and lengthsSascha Hauer1-3/+17
This patch lets sdma_prep_slave_sg fail if the entries of an sg list do not start on multiples of the word size or if the lengths are not multiple of the word size. Also, catch the previously unhandled DMA_SLAVE_BUSWIDTH_8_BYTES and DMA_SLAVE_BUSWIDTH_UNDEFINED cases. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX sdma: set maximum segment size for our deviceSascha Hauer1-0/+3
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-30dma40: cyclic xfer supportRabin Vincent3-49/+167
Support cyclic transfers, which are useful for ALSA drivers. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: stop ongoing transfers in DMA_TERMINATE_ALLRabin Vincent1-13/+21
The current implementation of DMA_TERMINATE_ALL leaves ongoing transfers running. Fix it. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: fix DMA_SG capability and channelsRabin Vincent1-37/+34
The DMA_SG cap is enabled on the wrong channel, and the pointers are repeatedly set incorrectly. Fix it and combine the ops settings to a common function. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: handle failure to allocate first LCLARabin Vincent1-0/+5
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: extract lcla code into separate functionRabin Vincent1-42/+50
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: use flags to reduce parameter countRabin Vincent2-37/+52
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: make d40_log_buf_to_lli staticRabin Vincent2-8/+1
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: unify src/dst addr checkRabin Vincent1-13/+16
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: pass the info pointer all the way to reduce argument countRabin Vincent3-33/+22
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: unify d40_log_sg_to_lli funcs for mem and slaveRabin Vincent3-85/+29
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: combine duplicated code in log_sg_to_devRabin Vincent1-29/+23
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: move lli_load to main source fileRabin Vincent3-35/+18
These register writes are better placed in the main source file rather than ll.c. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: combine mem and slave prep_sg functionsRabin Vincent1-94/+62
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: remove export of stedma40_memcpy_sgRabin Vincent2-20/+1
The dmaengine framework has the API for this now. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: combine mem and slave sg-to-lli functionsRabin Vincent1-110/+84
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: remove duplicated dev addr codeRabin Vincent1-36/+30
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: combine duplicated d40_pool_lli_alloc() callsRabin Vincent1-24/+14
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: combine desc init functionsRabin Vincent1-44/+32
The desc init code can be shared between the mem and slave prep routines. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: implement prep_memcpy as a wrapper around memcpy_sgRabin Vincent3-110/+10
To simplify the code. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: remove unnecessary castsRabin Vincent1-4/+2
Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: fix DMA API usage for LLIsRabin Vincent1-17/+41
Map and unmap the LLIs and use dma_sync_single_for_device() appropriately instead of mapping and never unmapping them. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: fix DMA API usage for LCLARabin Vincent1-8/+25
Map the buffer once and use dma_sync*() appropriately instead of mapping the buffer over and over without unmapping it. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: use sg_dma_address() instead of sg_phys()Rabin Vincent1-4/+4
The address to use for DMA should be taken from sg_dma_address() and not sg_phys(). Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: remove unnecessary ALIGN()sRabin Vincent1-5/+3
ALIGN(x * y, y) == x * y ALIGN(aligned + x * y, y) == aligned + x * y Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: allow realtime and priority for event linesRabin Vincent3-0/+53
DB8500v2's DMA40 (revision 3) allows setting event lines as high priority and real time. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: fix comment to refer to SOCs rather than boardsRabin Vincent1-2/+3
And add DB8500v2 information. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: use helpers for error functionsRabin Vincent1-127/+74
Almost every use of dev_err in this driver prints the function name. Abstract out wrappers to help with this and reduce code duplication. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-30dma40: use helpers for channel type checkRabin Vincent1-22/+32
The somewhat confusing check d40c->log_num == D40_PHY_CHAN and its variants are used in several places to check if a channel is logical or physical. Use appropriately named helpers to do this to make the code more readable. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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