[v2,0/2] dmaengine: xdma: Cyclic transfers support

Message

Miquel Raynal Sept. 22, 2023, 4:20 p.m. UTC

Hello,

Following the introduction of scatter-gather support of Xilinx's XDMA IP
in the Linux kernel, here is a small series adding cyclic transfers.

The first patch is a preparation patch to ease the review of the second
one which actually adds cyclic transfers support.

Thanks,
Miquèl

Changes in v2:
* Rebased on top of v6.6-rc1
* Removed the if (!state) superfluous check.
* Address a kernel test robot report (unitialized variable in error case)
* Simplify the convoluted logic when filling the hardware descriptors

Miquel Raynal (2):
  dmaengine: xilinx: xdma: Prepare the introduction of cyclic transfers
  dmaengine: xilinx: xdma: Support cyclic transfers

 drivers/dma/xilinx/xdma-regs.h |   2 +
 drivers/dma/xilinx/xdma.c      | 178 +++++++++++++++++++++++++++++++--
 2 files changed, 172 insertions(+), 8 deletions(-)