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

From: Miquel Raynal
Date: Fri Sep 22 2023 - 12:21:13 EST


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(-)

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2.34.1