On Mon, Jun 25, 2018 at 11:27:21AM +0200, Andrea Merello wrote: > The width of the "length register" cannot be autodetected, and it is now > specified with a DT property. Add DOC for it. > > Cc: Rob Herring <[email protected]> > Cc: Mark Rutland <[email protected]> > Cc: [email protected] > Cc: Radhey Shyam Pandey <[email protected]> > Signed-off-by: Andrea Merello <[email protected]> > Reviewed-by: Radhey Shyam Pandey <[email protected]> > --- > Changes in v2: > - change property name > - property is now optional > - cc DT maintainer > Changes in v3: > - reword > - cc DT maintainerS and ML > --- > Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt > b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt > index a2b8bfaec43c..c894abe28baa 100644 > --- a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt > +++ b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt > @@ -41,6 +41,7 @@ Optional properties: > - xlnx,include-sg: Tells configured for Scatter-mode in > the hardware. > Optional properties for AXI DMA: > +- xlnx,sg-length-width: Should be the width of the length register as > configured in h/w.
What are the units? What are valid values? What is the default if the property is not present? > - xlnx,mcdma: Tells whether configured for multi-channel mode in the > hardware. > Optional properties for VDMA: > - xlnx,flush-fsync: Tells which channel to Flush on Frame sync. > -- > 2.17.1 >
