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61e183f830
linux/drivers/dma
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Viresh Kumar 61e183f830 dmaengine/dw_dmac: Reconfigure interrupt and chan_cfg register on resume 
In S2R all DMA registers are reset by hardware and thus they are required to be
reprogrammed. The channels which aren't reprogrammed are channel configuration
and interrupt enable registers, which are currently programmed at chan_alloc
time.

This patch creates another routine to initialize a channel. It will try to
initialize channel on every dwc_dostart() call. If channel is already
initialised then it simply returns, otherwise it configures registers.

This routine will also initialize registers on wakeup from S2R, as we mark
channels as uninitialized on suspend.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2011-11-28 08:48:02 +05:30
..
ioat ioat: fix xor_idx_to_desc 2011-08-03 22:25:06 -07:00
ipu Merge branch 'dma_slave_direction' into next_test_dirn 2011-11-17 14:54:57 +05:30
ppc4xx Merge branch 'old_next' into next 2011-04-06 11:51:12 +05:30
amba-pl08x.c dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
at_hdmac_regs.h dmaengine: at_hdmac: platform data move to use .id_table 2011-11-10 14:13:33 +05:30
at_hdmac.c Merge branch 'dma_slave_direction' into next_test_dirn 2011-11-17 14:54:57 +05:30
coh901318_lli.c dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
coh901318_lli.h dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
coh901318.c dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
dmaengine.c DMAEngine: Define interleaved transfer request api 2011-11-18 12:16:24 +05:30
dmatest.c dmatest: make dmatest threads freezable 2011-08-29 18:01:27 +05:30
dw_dmac_regs.h dmaengine/dw_dmac: Reconfigure interrupt and chan_cfg register on resume 2011-11-28 08:48:02 +05:30
dw_dmac.c dmaengine/dw_dmac: Reconfigure interrupt and chan_cfg register on resume 2011-11-28 08:48:02 +05:30
ep93xx_dma.c dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
fsldma.c dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
fsldma.h fsldma: fix controller lockups 2011-03-11 17:52:36 -08:00
imx-dma.c Merge branch 'dma_slave_direction' into next_test_dirn 2011-11-17 14:54:57 +05:30
imx-sdma.c IMX/DMA : set the DMA direction in the sdma_control() 2011-11-22 09:51:45 +05:30
intel_mid_dma_regs.h dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
intel_mid_dma.c Merge branch 'dma_slave_direction' into next_test_dirn 2011-11-17 14:54:57 +05:30
iop-adma.c dma: fix spacing for method declaration, coding style issue in iop-adma.c 2011-11-17 14:25:25 +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
Kconfig dmaengine: add CSR SiRFprimaII DMAC driver 2011-11-18 12:25:22 +05:30
Makefile dmaengine: add CSR SiRFprimaII DMAC driver 2011-11-18 12:25:22 +05:30
mpc512x_dma.c dmaengine: delete redundant chan_id and chancnt initialization in dma drivers 2011-09-20 11:51:33 +05:30
mv_xor.c dma: mv_xor: use resource_size() 2011-07-14 03:32:31 +05:30
mv_xor.h mv_xor: implement a private tx_list 2009-09-08 17:53:03 -07:00
mxs-dma.c dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
pch_dma.c Merge branch 'dma_slave_direction' into next_test_dirn 2011-11-17 14:54:57 +05:30
pl330.c Merge branch 'dma_slave_direction' into next_test_dirn 2011-11-17 14:54:57 +05:30
shdma.c dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
shdma.h dma: shdma: transfer based runtime PM 2011-09-28 10:07:40 +05:30
sirf-dma.c dmaengine: add CSR SiRFprimaII DMAC driver 2011-11-18 12:25:22 +05:30
ste_dma40_ll.c dma40: cyclic xfer support 2011-01-30 22:27:21 -08:00
ste_dma40_ll.h dmaengine/ste_dma40: support pm in dma40 2011-11-22 09:46:06 +05:30
ste_dma40.c dmaengine/ste_dma40: support pm in dma40 2011-11-22 09:46:06 +05:30
timb_dma.c dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
TODO dmaengine: remove ste_dma40 from issue_pending TODO 2011-07-14 04:02:08 +05:30
txx9dmac.c dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
txx9dmac.h txx9dmac: implement a private tx_list 2009-09-08 17:53:03 -07:00