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dt-bindings: jz4780-dma: Update bindings to reflect driver changes 

The driver now expects the devicetree to supply a second memory
resource. This resource is mandatory on the newly supported SoCs.
For the JZ4780, new devicetree code must also provide it, although the
driver is still compatible with older devicetree binaries.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Paul Cercueil 2018-08-29 23:32:43 +02:00 committed by Vinod Koul
parent 5b394b2ddf
commit 77da5d19af
1 changed files with 10 additions and 4 deletions
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14
Documentation/devicetree/bindings/dma/jz4780-dma.txt
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@ -2,8 +2,13 @@
Required properties:
- compatible: Should be "ingenic,jz4780-dma"
- reg: Should contain the DMA controller registers location and length.
- compatible: Should be one of:
* ingenic,jz4740-dma
* ingenic,jz4725b-dma
* ingenic,jz4770-dma
* ingenic,jz4780-dma
- reg: Should contain the DMA channel registers location and length, followed
by the DMA controller registers location and length.
- interrupts: Should contain the interrupt specifier of the DMA controller.
- clocks: Should contain a clock specifier for the JZ4780 PDMA clock.
- #dma-cells: Must be <2>. Number of integer cells in the dmas property of
@ -19,9 +24,10 @@ Optional properties:
Example:
dma: dma@13420000 {
dma: dma-controller@13420000 {
compatible = "ingenic,jz4780-dma";
reg = <0x13420000 0x10000>;
reg = <0x13420000 0x400
0x13421000 0x40>;
interrupt-parent = <&intc>;
interrupts = <10>;