[PATCH 6/7] dt-bindings: dmaengine: at_xdmac: add optional microchip, m2m property
From: Eugen Hristev <hidden>
Date: 2020-09-14 14:12:30
Also in:
dmaengine, linux-devicetree, lkml
Subsystem:
dma generic offload engine subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Vinod Koul, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add optional microchip,m2m property that specifies if a controller is dedicated to memory to memory operations only. Signed-off-by: Eugen Hristev <redacted> --- Documentation/devicetree/bindings/dma/atmel-xdma.txt | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/dma/atmel-xdma.txt b/Documentation/devicetree/bindings/dma/atmel-xdma.txt
index 510b7f25ba24..642da6b95a29 100644
--- a/Documentation/devicetree/bindings/dma/atmel-xdma.txt
+++ b/Documentation/devicetree/bindings/dma/atmel-xdma.txt@@ -15,6 +15,12 @@ the dmas property of client devices. interface identifier, - bit 30-24: PERID, peripheral identifier. +Optional properties: +- microchip,m2m: this controller is connected on AXI only to memory and it's + dedicated to memory to memory DMA operations. If this option is + missing, it's assumed that the DMA controller is connected to + peripherals, thus it's a per2mem and mem2per. + Example: dma1: dma-controller@f0004000 {
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel