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Diffstat (limited to 'Documentation/devicetree/bindings/dma/nxp,lpc3220-dmamux.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/nxp,lpc3220-dmamux.yaml | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/nxp,lpc3220-dmamux.yaml b/Documentation/devicetree/bindings/dma/nxp,lpc3220-dmamux.yaml new file mode 100644 index 000000000000..32f208744154 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/nxp,lpc3220-dmamux.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/nxp,lpc3220-dmamux.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: DMA multiplexer for LPC32XX SoC (DMA request router) + +maintainers: + - J.M.B. Downing <jonathan.downing@nautel.com> + - Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com> + +allOf: + - $ref: dma-router.yaml# + +properties: + compatible: + const: nxp,lpc3220-dmamux + + reg: + maxItems: 1 + + dma-masters: + description: phandle to a dma node compatible with arm,pl080 + maxItems: 1 + + "#dma-cells": + const: 3 + description: | + First two cells same as for device pointed in dma-masters. + Third cell represents mux value for the request. + +required: + - compatible + - reg + - dma-masters + +additionalProperties: false + +examples: + - | + dma-router@7c { + compatible = "nxp,lpc3220-dmamux"; + reg = <0x7c 0x8>; + dma-masters = <&dma>; + #dma-cells = <3>; + }; + +... |