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linux-stable/drivers/dma
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Jiada Wang ffe59b2930 dmaengine: imx: correct sdmac->status for cyclic dma tx 
In cyclic dma tx's handler sdma_handle_channel_loop(),
SDMA channel statue is set to either DMA_ERROR or DMA_IN_PROGRESS
based on each period's status. This has the following issues:

1) If one period's status is BD_RROR, then channel status
   will be set to DMA_ERROR, but it will be overwritten to DMA_IN_PROGRESS
   if the following periods are OK.
2) DMA client may call sdma_control(DMA_TERMINATE_ALL) to stop the cyclic dma
   operation, sdma channel status will be set to DMA_ERROR,
   but if after this handler is called, then again the channel status will be overwritten
   to DMA_IN_PROGRESS. Then the following dmaengine_prep_dma_cyclic() will always fail,
   as channel status is DMA_IN_PROGRESS.

As in cyclic dma tx, channel status will be initially set to DMA_IN_PROGRESS,
driver only needs to change it to DMA_ERROR, when something wrong happens
(one period status is wrong, or stoped by client explicitly).

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-06-01 22:22:26 +05:30
..
bestcomm drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
dw dma: remove DEFINE_PCI_DEVICE_TABLE macro 2014-05-21 11:16:18 +05:30
ioat ioat: fix tasklet tear down 2014-02-25 09:44:20 -08:00
ipu dmaengine: ipu: fix warnings from 64-bit dma_addr_t printouts 2013-11-13 14:10:48 +05:30
ppc4xx Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-01-29 20:27:23 -08:00
sh DMA: shdma: add cyclic transfer support 2014-05-02 21:48:33 +05:30
acpi-dma.c acpi-dma: convert to return error code when asked for channel 2014-02-11 23:30:50 +05:30
amba-pl08x.c dma: pl08x: Export pl08x_filter_id 2014-01-28 08:45:54 +05:30
at_hdmac.c dmaengine: at_hdmac: use tasklet_kill in teardown 2014-03-17 18:33:43 +05:30
at_hdmac_regs.h dmaengine: at_hdmac: remove unused function 2013-12-12 22:43:41 -08:00
bcm2835-dma.c dmaengine: Add DMA_PRIVATE to BCM2835 driver 2014-01-20 12:31:50 +05:30
coh901318.c dmaengine: coh901318: use DMA_COMPLETE for dma completion status 2013-10-25 11:15:56 +05:30
coh901318.h dma: coh901318: merge header files 2013-01-07 17:36:37 +01:00
coh901318_lli.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-02-26 09:24:48 -08:00
cppi41.c dma: cppi41: start tear down only if channel is busy 2014-03-11 16:22:43 +05:30
dma-jz4740.c dmaengine: jz4740: use DMA_COMPLETE for dma completion status 2013-10-25 11:15:58 +05:30
dmaengine.c acpi-dma: convert to return error code when asked for channel 2014-02-11 23:30:50 +05:30
dmaengine.h dmaengine: consolidate initialization of cookies 2012-03-13 11:37:22 +05:30
dmatest.c Add new line to test result strings produced in verbose mode 2014-03-26 11:41:45 +05:30
edma.c dmaengine: edma: update DMA memcpy to use new param element 2014-04-30 10:36:57 +05:30
ep93xx_dma.c dmaengine: remove DMA unmap from drivers 2013-11-14 11:04:38 -08:00
fsl-edma.c dma: fix eDMA driver as a subsys_initcall 2014-04-16 12:03:47 +05:30
fsldma.c DMA: Freescale: move functions to avoid forward declarations 2014-05-02 22:17:43 +05:30
fsldma.h DMA: Freescale: change BWC from 256 bytes to 1024 bytes 2014-01-20 13:13:22 +05:30
imx-dma.c dma: imx-dma: Add missing module owner field 2014-03-06 20:51:09 +05:30
imx-sdma.c dmaengine: imx: correct sdmac->status for cyclic dma tx 2014-06-01 22:22:26 +05:30
intel_mid_dma.c dmaengine: intel_mid_dma: use DMA_COMPLETE for dma completion status 2013-10-25 11:16:04 +05:30
intel_mid_dma_regs.h dma: fix comments 2012-09-01 08:57:12 -07:00
iop-adma.c Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine 2013-11-16 12:02:36 +05:30
iovlock.c
k3dma.c dmaengine: k3dma: fix sparse warnings 2014-01-20 13:53:20 +05:30
Kconfig dma: pch_dma: Fix Kconfig dependencies 2014-05-22 11:48:27 +05:30
Makefile dmaengine: add Qualcomm BAM dma driver 2014-04-05 20:44:26 +05:30
mmp_pdma.c dma: mmp_pdma: add support for residue reporting 2014-05-07 12:33:40 +05:30
mmp_tdma.c dma: mmp_tdma: move to generic device tree binding 2014-03-06 14:49:54 +05:30
moxart-dma.c dmaengine: Add MOXA ART DMA engine driver 2014-01-20 12:32:46 +05:30
mpc512x_dma.c dmaengine: mpc512x: add support for peripheral transfers 2014-05-22 10:37:01 +05:30
mv_xor.c dma: mv_xor: Silence a bunch of LPAE-related warnings 2014-02-12 16:21:17 -08:00
mv_xor.h dma: mv_xor: Fix mis-usage of mmio 'base' and 'high_base' registers 2013-11-14 11:04:42 -08:00
mxs-dma.c dma: mxs-dma: Use semaphores for cyclic DMA 2013-11-13 15:38:31 +05:30
of-dma.c dma: add channel request API that supports deferred probe 2013-12-10 17:46:48 +05:30
omap-dma.c Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-04-10 08:55:08 -07:00
pch_dma.c dmaengine: pch: fix compilation for alpha target 2014-05-22 18:50:49 +05:30
pl330.c Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-01-29 20:27:23 -08:00
qcom_bam_dma.c dmaengine: add Qualcomm BAM dma driver 2014-04-05 20:44:26 +05:30
s3c24xx-dma.c dmaengine: s3c24xx-dma: make phy->irq signed for error handling 2014-03-11 14:23:18 +05:30
sa11x0-dma.c dmaengine: sa11x0: use DMA_COMPLETE for dma completion status 2013-10-25 11:16:13 +05:30
sirf-dma.c dmaengine: sirf: off by one in of_dma_sirfsoc_xlate() 2014-04-16 11:59:24 +05:30
ste_dma40.c dma: ste_dma40: Convert to the late system PM callbacks 2014-05-07 15:32:07 +05:30
ste_dma40_ll.c dmaengine: ste_dma40_ll: Replace meaningless register set with comment 2013-06-04 11:12:10 +02:00
ste_dma40_ll.h dmaengine: ste_dma40: Remove unnecessary call to d40_phy_cfg() 2013-05-23 21:13:19 +02:00
tegra20-apb-dma.c Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-01-29 20:27:23 -08:00
timb_dma.c dmaengine: remove DMA unmap from drivers 2013-11-14 11:04:38 -08:00
TODO
txx9dmac.c dma: fix build warnings in txx9 2013-12-12 22:43:41 -08:00
txx9dmac.h
virt-dma.c dmaengine: virt-dma: add support for cyclic DMA periodic callbacks 2012-07-01 14:15:23 +01:00
virt-dma.h dma: fix vchan_cookie_complete() debug print 2014-01-26 17:33:45 +05:30