diff options
| author | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-07-20 11:26:07 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-07-29 12:18:49 +0530 |
| commit | edd14218bd663e4dd2f1c8f4eed84f92ada93c9d (patch) | |
| tree | a48505ca5e0778f66b8bd1a70fbcf56c718b6c45 /Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml | |
| parent | 545a29c811f6a07433c2725a94243f56ae28a81f (diff) | |
dt-bindings: dmaengine: Convert Allwinner A31 and A64 DMA to a schema
The newer Allwinner SoCs have a DMA controller supported in Linux, with a
matching Device Tree binding.
Now that we have the DT validation in place, let's convert the device tree
bindings for that controller over to a YAML schemas.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://lore.kernel.org/r/20190720092607.31095-3-maxime.ripard@bootlin.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml b/Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml new file mode 100644 index 000000000000..740b7f9b535b --- /dev/null +++ b/Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/allwinner,sun6i-a31-dma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A31 DMA Controller Device Tree Bindings + +maintainers: + - Chen-Yu Tsai <wens@csie.org> + - Maxime Ripard <maxime.ripard@bootlin.com> + +allOf: + - $ref: "dma-controller.yaml#" + +properties: + "#dma-cells": + const: 1 + description: The cell is the request line number. + + compatible: + oneOf: + - const: allwinner,sun6i-a31-dma + - const: allwinner,sun8i-a23-dma + - const: allwinner,sun8i-a83t-dma + - const: allwinner,sun8i-h3-dma + - const: allwinner,sun8i-v3s-dma + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + +required: + - "#dma-cells" + - compatible + - reg + - interrupts + - clocks + - resets + +additionalProperties: false + +examples: + - | + dma: dma-controller@1c02000 { + compatible = "allwinner,sun6i-a31-dma"; + reg = <0x01c02000 0x1000>; + interrupts = <0 50 4>; + clocks = <&ahb1_gates 6>; + resets = <&ahb1_rst 6>; + #dma-cells = <1>; + }; + +... |