Markus Pargmann 702e94d66b dma: mxs-dma: Fix channel reset hardware bug ...

This is no official errata, but I noticed that the channel reset may
stop working if the DMA state engine is in the READ_FLUSH state.

This patch uses the channel debug1 register to wait for the DMA
statemachine to leave the READ_FLUSH state. After that we can continue
to reset the channel.

Tested on i.MX28.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

2013-11-13 15:38:30 +05:30

..

bestcomm

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2013-02-23 17:09:55 -08:00

dw

dmaengine: dw: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:00 +05:30

ioat

dmaengine: ioat: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:05 +05:30

ipu

dmaengine: ipu: fix warnings from 64-bit dma_addr_t printouts

2013-11-13 14:10:48 +05:30

ppc4xx

dmaengine: ppc4xx: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:12 +05:30

sh

Merge branch 'dma_complete' into next

2013-10-30 15:42:19 +05:30

acpi-dma.c

acpi-dma: remove ugly conversion

2013-08-25 16:43:45 +05:30

amba-pl08x.c

dmaengine: amba-pl08x: use DMA_COMPLETE for dma completion status

2013-10-25 11:15:54 +05:30

at_hdmac_regs.h

DMA: AT91: Get residual bytes in dma buffer

2013-07-05 11:40:31 +05:30

at_hdmac.c

dmaengine: at_hdma: use DMA_COMPLETE for dma completion status

2013-10-25 11:15:55 +05:30

coh901318_lli.c

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

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

cppi41.c

dma: cppi41: return code > 0 of pm_runtime_get_sync() is not an error

2013-11-12 14:28:25 +05:30

dma-jz4740.c

dmaengine: jz4740: use DMA_COMPLETE for dma completion status

2013-10-25 11:15:58 +05:30

dmaengine.c

dmaengine: use DMA_COMPLETE for dma completion status

2013-10-25 11:15:38 +05:30

dmaengine.h

dmaengine: consolidate initialization of cookies

2012-03-13 11:37:22 +05:30

dmatest.c

dmaengine: dmatest: use DMA_COMPLETE for dma completion status

2013-10-25 11:15:59 +05:30

edma.c

dmaengine: edma: remove duplicate kfree

2013-11-13 14:10:20 +05:30

ep93xx_dma.c

ep93xx_dma: remove useless use of lock

2013-08-05 09:32:24 +05:30

fsldma.c

DMA: Freescale: update driver to support 8-channel DMA engine

2013-11-13 14:26:27 +05:30

fsldma.h

DMA: Freescale: update driver to support 8-channel DMA engine

2013-11-13 14:26:27 +05:30

imx-dma.c

Merge branch 'for-linus' into next

2013-10-31 22:36:13 +05:30

imx-sdma.c

dma: imx-sdma: Fix warnings for LPAE builds

2013-11-13 14:10:48 +05:30

intel_mid_dma_regs.h

dma: fix comments

2012-09-01 08:57:12 -07:00

intel_mid_dma.c

dmaengine: intel_mid_dma: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:04 +05:30

iop-adma.c

dmaengine: iop: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:06 +05:30

iovlock.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

k3dma.c

dmaengine: k3dma: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:07 +05:30

Kconfig

DMA: Freescale: update driver to support 8-channel DMA engine

2013-11-13 14:26:27 +05:30

Makefile

Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma

2013-09-10 13:37:36 -07:00

mmp_pdma.c

dma: misc: remove deprecated IRQF_DISABLED

2013-10-13 20:21:35 +05:30

mmp_tdma.c

dmaengine: mmp_tdma: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:08 +05:30

mpc512x_dma.c

mpc512x_dma: remove useless use of lock

2013-08-05 09:32:25 +05:30

mv_xor.c

dmaengine: mv_xor: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:09 +05:30

mv_xor.h

mv_xor: support big endian systems using descriptor swap feature

2013-08-22 22:57:37 -07:00

mxs-dma.c

dma: mxs-dma: Fix channel reset hardware bug

2013-11-13 15:38:30 +05:30

of-dma.c

dma: of: make error message more meaningful by adding the node name

2013-08-19 14:45:05 +05:30

omap-dma.c

dmaengine: omap: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:11 +05:30

pch_dma.c

pch_dma: Add MODULE_DEVICE_TABLE

2013-09-02 11:59:58 +05:30

pl330.c

dma: pl330: Remove unnecessary amba_set_drvdata()

2013-10-31 19:54:10 +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: add PM entries for sleep and runtime

2013-08-13 17:01:01 +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

ste_dma40.c

dmaengine: ste: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:15 +05:30

tegra20-apb-dma.c

dmaengine: tegra: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:16 +05:30

timb_dma.c

dma: use dev_get_platdata()

2013-08-13 16:56:41 +05:30

TODO

dmaengine: remove ste_dma40 from issue_pending TODO

2011-07-14 04:02:08 +05:30

txx9dmac.c

dmaengine: txx9: use DMA_COMPLETE for dma completion status

2013-10-25 11:16:17 +05:30

txx9dmac.h

dmaengine: move last completed cookie into generic dma_chan structure

2012-03-13 11:36:06 +05:30

virt-dma.c

dmaengine: virt-dma: add support for cyclic DMA periodic callbacks

2012-07-01 14:15:23 +01:00

virt-dma.h

dmaengine: virt-dma: add support for cyclic DMA periodic callbacks

2012-07-01 14:15:23 +01:00