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 description: 28 Array of phandles to the DMA controllers the router can direct 29 the signal to. 30 31 dma-requests: 32 description: 33 Number of incoming request lines the router can handle. 34 35required: 36 - "#dma-cells" 37 - dma-masters 38 39examples: 40 - | 41 sdma_xbar: dma-router@4a002b78 { 42 compatible = "ti,dra7-dma-crossbar"; 43 reg = <0x4a002b78 0xfc>; 44 #dma-cells = <1>; 45 dma-requests = <205>; 46 ti,dma-safe-map = <0>; 47 dma-masters = <&sdma>; 48 }; 49 50... 51