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(parent: 5ba080a) | patch
dmaengine: xilinx_dma: Check for channel idle state before submitting dma descriptor
authorKedareswara rao Appana <appana.durga.rao@xilinx.com>
Thu, 7 Dec 2017 05:21:02 +0000 (10:51 +0530)
committerVinod Koul <vinod.koul@intel.com>
Mon, 18 Dec 2017 05:14:09 +0000 (10:44 +0530)
commit21e02a3e05cfd3994ca598a5c9c2e1795007b603
treea0dbb05b182e949b1c2515b90b4a40e2481c4125tree | snapshot
parent5ba080aada5e739165e0f38d5cc3b04c82b323c8commit | diff
dmaengine: xilinx_dma: Check for channel idle state before submitting dma descriptor

Add variable for checking channel idle state to ensure that dma
descriptor is not submitted when dmaengine is in progress.

This will avoid the polling for a bit in the status register to know
dma state in the driver hot path.

Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
drivers/dma/xilinx/xilinx_dma.c diff | blob | history
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