Messages in this thread Patch in this message | | | From | Eugeniy Paltsev <> | Subject | [PATCH 4/4] Update device tree Synopsys DW DMAC documentation | Date | Wed, 16 Nov 2016 16:56:55 +0300 |
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* Rename is_private to is-private as ordered by DT policy. The change leaves the support for the old format.
* Add is-memcpu property, so it is possible to enable memory-to-memory transfers support via DT.
* Add hw-llp property, so it is possible to enable hardware multi block transfers support via DT.
Fix white spaces.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> --- Documentation/devicetree/bindings/dma/snps-dma.txt | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/dma/snps-dma.txt b/Documentation/devicetree/bindings/dma/snps-dma.txt index 0f55832..d41d960 100644 --- a/Documentation/devicetree/bindings/dma/snps-dma.txt +++ b/Documentation/devicetree/bindings/dma/snps-dma.txt @@ -20,13 +20,19 @@ Required properties: Deprecated properties: - data_width: Maximum data width supported by hardware per AHB master (0 - 8bits, 1 - 16bits, ..., 5 - 256bits) +- is_private: The device channels should be marked as private and not for by the + general purpose DMA channel allocator. False if not passed. Optional properties: - interrupt-parent: Should be the phandle for the interrupt controller that services interrupts for this device -- is_private: The device channels should be marked as private and not for by the +- is-private: The device channels should be marked as private and not for by the general purpose DMA channel allocator. False if not passed. +- is-memcpu: The device channels do support memory-to-memory transfers. False + if not passed. +- hw-llp: Multi block transfers supported by hardware per AHB master. + 0 (default): not supported, 1: supported. Example: @@ -56,7 +62,7 @@ The four cells in order are: 4. Peripheral master for transfers on allocated channel Example: - + serial@e0000000 { compatible = "arm,pl011", "arm,primecell"; reg = <0xe0000000 0x1000>; -- 2.5.5
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