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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/devicetree/bindings/dma/dma-router.yaml | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/dma/dma-router.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/dma/dma-router.yaml | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/dma-router.yaml b/Documentation/devicetree/bindings/dma/dma-router.yaml new file mode 100644 index 000000000..4b817f5dc --- /dev/null +++ b/Documentation/devicetree/bindings/dma/dma-router.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/dma-router.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: DMA Router Generic Binding + +maintainers: + - Vinod Koul <vkoul@kernel.org> + +allOf: + - $ref: "dma-common.yaml#" + +description: + DMA routers are transparent IP blocks used to route DMA request + lines from devices to the DMA controller. Some SoCs (like TI DRA7x) + have more peripherals integrated with DMA requests than what the DMA + controller can handle directly. + +properties: + $nodename: + pattern: "^dma-router(@.*)?$" + + dma-masters: + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + maxItems: 1 + description: + Array of phandles to the DMA controllers the router can direct + the signal to. + + dma-requests: + description: + Number of incoming request lines the router can handle. + +required: + - "#dma-cells" + - dma-masters + +additionalProperties: true + +examples: + - | + sdma_xbar: dma-router@4a002b78 { + compatible = "ti,dra7-dma-crossbar"; + reg = <0x4a002b78 0xfc>; + #dma-cells = <1>; + dma-requests = <205>; + ti,dma-safe-map = <0>; + dma-masters = <&sdma>; + }; + +... |