Add bindings to describe the TDM driver for the StarFive JH7110 SoC.
Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Signed-off-by: Walker Chen walker.chen@starfivetech.com --- .../bindings/sound/starfive,jh7110-tdm.yaml | 98 +++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/starfive,jh7110-tdm.yaml
diff --git a/Documentation/devicetree/bindings/sound/starfive,jh7110-tdm.yaml b/Documentation/devicetree/bindings/sound/starfive,jh7110-tdm.yaml new file mode 100644 index 000000000000..abb373fbfa26 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/starfive,jh7110-tdm.yaml @@ -0,0 +1,98 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/starfive,jh7110-tdm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive JH7110 TDM Controller + +description: | + The TDM Controller is a Time Division Multiplexed audio interface + integrated in StarFive JH7110 SoC, allowing up to 8 channels of + audio over a serial interface. The TDM controller can operate both + in master and slave mode. + +maintainers: + - Walker Chen walker.chen@starfivetech.com + +allOf: + - $ref: dai-common.yaml# + +properties: + compatible: + enum: + - starfive,jh7110-tdm + + reg: + maxItems: 1 + + clocks: + items: + - description: TDM AHB Clock + - description: TDM APB Clock + - description: TDM Internal Clock + - description: TDM Clock + - description: Inner MCLK + - description: TDM External Clock + + clock-names: + items: + - const: tdm_ahb + - const: tdm_apb + - const: tdm_internal + - const: tdm + - const: mclk_inner + - const: tdm_ext + + resets: + items: + - description: tdm ahb reset line + - description: tdm apb reset line + - description: tdm core reset line + + dmas: + items: + - description: RX DMA Channel + - description: TX DMA Channel + + dma-names: + items: + - const: rx + - const: tx + + "#sound-dai-cells": + const: 0 + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - dmas + - dma-names + - "#sound-dai-cells" + +additionalProperties: false + +examples: + - | + tdm@10090000 { + compatible = "starfive,jh7110-tdm"; + reg = <0x10090000 0x1000>; + clocks = <&syscrg 184>, + <&syscrg 185>, + <&syscrg 186>, + <&syscrg 187>, + <&syscrg 17>, + <&tdm_ext>; + clock-names = "tdm_ahb", "tdm_apb", + "tdm_internal", "tdm", + "mclk_inner", "tdm_ext"; + resets = <&syscrg 105>, + <&syscrg 107>, + <&syscrg 106>; + dmas = <&dma 20>, <&dma 21>; + dma-names = "rx","tx"; + #sound-dai-cells = <0>; + };