Messages in this thread | | | Date | Mon, 12 Apr 2021 13:25:29 -0500 | From | Rob Herring <> | Subject | Re: [RFC v2 PATCH 2/7] dt-bindings: dmaengine: xilinx_dma: Add xlnx,irq-delay property |
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On Fri, 09 Apr 2021 23:26:00 +0530, Radhey Shyam Pandey wrote: > Add an optional AXI DMA property 'xlnx,irq-delay'. It specifies interrupt > timeout value and causes the DMA engine to generate an interrupt after the > delay time period has expired. Timer begins counting at the end of a packet > and resets with receipt of a new packet or a timeout event occurs. > > This property is useful when AXI DMA is connected to the streaming IP i.e > axiethernet where inter packet latency is critical while still taking the > benefit of interrupt coalescing. > > Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> > --- > Changes for v2: > - New patch. Introduce xlnx,irq-delay property for low latency usecases > --- > Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) >
Acked-by: Rob Herring <robh@kernel.org>
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