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| author | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-05-24 15:57:58 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-05-28 17:52:56 +0300 |
| commit | 0a0ca8e94ca36d2153c2fbea69a31f792bfc5831 (patch) | |
| tree | 89b5a2c0e9736d8e3dc1370ab77e1732533f46ed /Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml | |
| parent | ec9025e5d3c5b5f2027fa74be6afdaad9908b546 (diff) | |
| download | linux-0a0ca8e94ca36d2153c2fbea69a31f792bfc5831.tar.xz | |
dt-bindings: sound: Convert Allwinner I2S binding to YAML
The Allwinner SoCs feature an I2S controller across multiple SoC
generations.
However, earlier generations were a bit simpler than the subsequent ones,
and for example would always have RX and TX capabilities, and no reset
lines.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml new file mode 100644 index 000000000000..85b2d6d84055 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml @@ -0,0 +1,100 @@ +# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/allwinner,sun4i-a10-i2s.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A10 I2S Controller Device Tree Bindings + +maintainers: + - Chen-Yu Tsai <wens@csie.org> + - Maxime Ripard <maxime.ripard@bootlin.com> + +properties: + "#sound-dai-cells": + const: 0 + + compatible: + oneOf: + - const: allwinner,sun4i-a10-i2s + - const: allwinner,sun6i-a31-i2s + - const: allwinner,sun8i-a83t-i2s + - const: allwinner,sun8i-h3-i2s + - const: allwinner,sun50i-a64-codec-i2s + - items: + - const: allwinner,sun50i-a64-i2s + - const: allwinner,sun8i-h3-i2s + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Bus Clock + - description: Module Clock + + clock-names: + items: + - const: apb + - const: mod + + dmas: + items: + - description: RX DMA Channel + - description: TX DMA Channel + + dma-names: + items: + - const: rx + - const: tx + + # Even though it only applies to subschemas under the conditionals, + # not listing them here will trigger a warning because of the + # additionalsProperties set to false. + resets: + maxItems: 1 + +allOf: + - if: + properties: + compatible: + contains: + enum: + - allwinner,sun6i-a31-i2s + - allwinner,sun8i-a83t-i2s + - allwinner,sun8i-h3-i2s + - allwinner,sun50i-a64-codec-i2s + + then: + required: + - resets + +required: + - "#sound-dai-cells" + - compatible + - reg + - interrupts + - clocks + - clock-names + - dmas + - dma-names + +additionalProperties: false + +examples: + - | + i2s0: i2s@1c22400 { + #sound-dai-cells = <0>; + compatible = "allwinner,sun4i-a10-i2s"; + reg = <0x01c22400 0x400>; + interrupts = <0 16 4>; + clocks = <&apb0_gates 3>, <&i2s0_clk>; + clock-names = "apb", "mod"; + dmas = <&dma 0 3>, <&dma 0 3>; + dma-names = "rx", "tx"; + }; + +... |