Files
linux/Documentation/devicetree/bindings/dma/dma-router.yaml
Krzysztof Kozlowski ab040c4223 dt-bindings: drop redundant part of title of shared bindings
The Devicetree bindings document does not have to say in the title that
it is a "binding", but instead just describe the hardware.  For shared
(re-usable) schemas, name them all as "common properties".

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net> # watchdog
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # IIO
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # MMC
Acked-by: Stephen Boyd <sboyd@kernel.org> # clk
Acked-by: Vinod Koul <vkoul@kernel.org> # dma
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # media
Acked-by: Sebastian Reichel <sre@kernel.org> # power
Acked-by: Viresh Kumar <viresh.kumar@linaro.org> # opp
Link: https://lore.kernel.org/r/20221216163815.522628-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>
2022-12-16 11:41:49 -06:00

55 lines
1.2 KiB
YAML

# 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 Common Properties
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>;
};
...