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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/dma/socionext,uniphier-mio-dmac.yaml | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/dma/socionext,uniphier-mio-dmac.yaml | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/socionext,uniphier-mio-dmac.yaml b/Documentation/devicetree/bindings/dma/socionext,uniphier-mio-dmac.yaml new file mode 100644 index 000000000..e7bf6dd7d --- /dev/null +++ b/Documentation/devicetree/bindings/dma/socionext,uniphier-mio-dmac.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/socionext,uniphier-mio-dmac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: UniPhier Media IO DMA controller + +description: | + This works as an external DMA engine for SD/eMMC controllers etc. + found in UniPhier LD4, Pro4, sLD8 SoCs. + +maintainers: + - Masahiro Yamada <yamada.masahiro@socionext.com> + +allOf: + - $ref: "dma-controller.yaml#" + +properties: + compatible: + const: socionext,uniphier-mio-dmac + + reg: + maxItems: 1 + + interrupts: + description: | + A list of interrupt specifiers associated with the DMA channels. + The number of interrupt lines is SoC-dependent. + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + + '#dma-cells': + description: The single cell represents the channel index. + const: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - '#dma-cells' + +additionalProperties: false + +examples: + - | + // In the example below, "interrupts = <0 68 4>, <0 68 4>, ..." is not a + // typo. The first two channels share a single interrupt line. + + dmac: dma-controller@5a000000 { + compatible = "socionext,uniphier-mio-dmac"; + reg = <0x5a000000 0x1000>; + interrupts = <0 68 4>, <0 68 4>, <0 69 4>, <0 70 4>, + <0 71 4>, <0 72 4>, <0 73 4>, <0 74 4>; + clocks = <&mio_clk 7>; + resets = <&mio_rst 7>; + #dma-cells = <1>; + }; |