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4 Commits

Author SHA1 Message Date
Axel Lin
28eb232f21 dmaengine: ti-dma-crossbar: Fix checking return value of devm_ioremap_resource 
devm_ioremap_resource returns ERR_PTR on failure.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
 2015-08-05 10:40:06 +05:30
Peter Ujfalusi
1eb995bbf7 dmaengine: ti-dma-crossbar: Add support for eDMA 
The crossbar for eDMA works exactly the same way as sDMA, but sDMA
requires an offset of 1, while no offset is needed for eDMA.

Based on the patch from Misael Lopez Cruz <misael.lopez@ti.com>

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
CC: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
 2015-07-22 19:56:07 +05:30
Misael Lopez Cruz
be559daabf dmaengine: ti-dma-crossbar: Make idr xbar instance-specific 
In preparation for supporting multiple DMA crossbar instances,
make the idr xbar instance specific.

Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
 2015-07-22 19:56:07 +05:30
Peter Ujfalusi
a074ae38f8 dmaengine: Add driver for TI DMA crossbar on DRA7x 
The DRA7x has more peripherals with DMA requests than the sDMA can handle:
205 vs 127. All DMA requests are routed through the DMA crossbar, which can
be configured to route selected incoming DMA requests to specific sDMA
request.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
 2015-05-14 20:49:25 +05:30