linux/drivers/dma, branch v4.4

dmaengine: xgene-dma: Fix double IRQ issue by setting IRQ_DISABLE_UNLAZY flag

2016-01-07T05:39:36Z

For interrupt controller that doesn't support irq_disable and hardware with level interrupt, an extra interrupt can be pending. This patch fixes the issue by setting IRQ_DISABLE_UNLAZY flag for the interrupt line. Reference: http://git.kernel.org/tip/e9849777d0e27cdd2902805be51da73e7c79578c Signed-off-by: Rameshwar Prasad Sahu Signed-off-by: Vinod Koul

dmaengine: Revert "dmaengine: mic_x100: add missing spin_unlock"

2016-01-06T09:46:36Z

This reverts commit e958e079e254 ("dmaengine: mic_x100: add missing spin_unlock"). The above patch is incorrect. There is nothing wrong with the original code. The spin_lock is acquired in the "prep" functions and released in "submit". Signed-off-by: Ashutosh Dixit Signed-off-by: Vinod Koul

dmaengine: at_xdmac: fix at_xdmac_prep_dma_memcpy()

2015-12-10T04:18:01Z

This patch fixes at_xdmac_prep_dma_memcpy(). Indeed the data width field of the Channel Configuration register was not updated properly in the loop: the bits of the dwidth field were not cleared before adding their new value. Signed-off-by: Cyrille Pitchen Acked-by: Ludovic Desroches Fixes: e1f7c9eee70 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver") Cc: stable@vger.kernel.org #4.1 and later Signed-off-by: Vinod Koul

Merge branch 'fix/edma' into fixes

2015-12-10T03:13:43Z

dmaengine: edma: DT: Change reserved slot array from 16bit to 32bit type

2015-12-10T03:02:42Z

This change makes the DT file to be easier to read since the reserved slots array does not need the '/bits/ 16' to be specified, which might confuse some people. Signed-off-by: Peter Ujfalusi Acked-by: Arnd Bergmann Acked-by: Rob Herring Acked-by: Tony Lindgren Signed-off-by: Vinod Koul

dmaengine: edma: DT: Change memcpy channel array from 16bit to 32bit type

2015-12-10T03:01:10Z

This change makes the DT file to be easier to read since the memcpy channels array does not need the '/bits/ 16' to be specified, which might confuse some people. Signed-off-by: Peter Ujfalusi Acked-by: Arnd Bergmann Acked-by: Rob Herring Acked-by: Tony Lindgren Signed-off-by: Vinod Koul

dmaengine: mic_x100: add missing spin_unlock

2015-12-05T10:30:48Z

spin lock should be released while returning from function Signed-off-by: Saurabh Sengar Signed-off-by: Vinod Koul

dmaengine: bcm2835-dma: Convert to use DMA pool

2015-12-05T10:06:32Z

f93178291712 dmaengine: bcm2835-dma: Fix memory leak when stopping a running transfer Fixed the memleak, but introduced another issue: the terminate_all callback might be called with interrupts disabled and the dma_free_coherent() is not allowed to be called when IRQs are disabled. Convert the driver to use dma_pool_* for managing the list of control blocks for the transfer. Fixes: f93178291712 ("dmaengine: bcm2835-dma: Fix memory leak when stopping a running transfer") Signed-off-by: Peter Ujfalusi Tested-by: Matthias Reichl Signed-off-by: Vinod Koul

dmaengine: at_xdmac: fix bad behavior in interleaved mode

2015-12-05T08:46:23Z

When performing interleaved transfers with numf > 1, an extra line is copied. The mbr.bc field is incremented once too often. The length of the block is (BLEN+1) microblocks. Signed-off-by: Sylvain ETIENNE Signed-off-by: Ludovic Desroches Fixes: 4e5385784e69 ("dmaengine: at_xdmac: handle numf > 1") Signed-off-by: Vinod Koul

dmaengine: at_xdmac: fix false condition for memset_sg transfers

2015-12-05T08:43:51Z

The code was not in agreement with the comments. Signed-off-by: Ludovic Desroches Cc: stable@vger.kernel.org # 4.3 and later Signed-off-by: Vinod Koul