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ab59a510c6
linux/drivers/dma
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Huang Shijie ab59a510c6 IMX/SDMA : save the real count for one DMA transaction. 
When we use the SDMA in the UART driver(such as imx6q), we will
meet one situation:
  Assume we set 64 bytes for the RX DMA buffer.
  The RX DMA buffer has received some data, but not full.
  An Aging DMA request will be received by the SDMA controller if we enable the
  IDDMAEN(UCR4[6]) in this case.

So the UART driver needs to know the count of the real received bytes,
and push them to upper layer.

Add two new fields to sdmac, and update the `residue` in sdma_tx_status().

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2011-12-05 08:22:26 +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: simplify device selection from platform data or DT 2011-11-28 15:55:36 +05:30
at_hdmac.c dmaengine: at_hdmac: simplify device selection from platform data or DT 2011-11-28 15:55:36 +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 dma/ep93xx_dma: prevent ep93xx_dma_tasklet() to reference an empty list 2011-12-05 08:16:26 +05:30
fsldma.c dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
fsldma.h
imx-dma.c Merge branch 'dma_slave_direction' into next_test_dirn 2011-11-17 14:54:57 +05:30
imx-sdma.c IMX/SDMA : save the real count for one DMA transaction. 2011-12-05 08:22:26 +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
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
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
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: Add support to use lcla area from esram 2011-11-28 09:00:08 +05:30
timb_dma.c dmaengine: timb_dma: fix the spare warinings 2011-11-28 08:51:16 +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