1# SPDX-License-Identifier: GPL-2.0 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/dma/dma-router.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: DMA Router Generic Binding 8 9maintainers: 10 - Vinod Koul <vkoul@kernel.org> 11 12allOf: 13 - $ref: "dma-common.yaml#" 14 15description: 16 DMA routers are transparent IP blocks used to route DMA request 17 lines from devices to the DMA controller. Some SoCs (like TI DRA7x) 18 have more peripherals integrated with DMA requests than what the DMA 19 controller can handle directly. 20 21properties: 22 $nodename: 23 pattern: "^dma-router(@.*)?$" 24 25 dma-masters: 26 $ref: /schemas/types.yaml#/definitions/phandle-array 27 items: 28 maxItems: 1 29 description: 30 Array of phandles to the DMA controllers the router can direct 31 the signal to. 32 33 dma-requests: 34 description: 35 Number of incoming request lines the router can handle. 36 37required: 38 - "#dma-cells" 39 - dma-masters 40 41additionalProperties: true 42 43examples: 44 - | 45 sdma_xbar: dma-router@4a002b78 { 46 compatible = "ti,dra7-dma-crossbar"; 47 reg = <0x4a002b78 0xfc>; 48 #dma-cells = <1>; 49 dma-requests = <205>; 50 ti,dma-safe-map = <0>; 51 dma-masters = <&sdma>; 52 }; 53 54... 55