98 lines
2.4 KiB
Diff
98 lines
2.4 KiB
Diff
From a306724fd4f32808d1e27efbd87019d56f60db20 Mon Sep 17 00:00:00 2001
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From: Hal Feng <hal.feng@starfivetech.com>
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Date: Mon, 14 Aug 2023 16:06:16 +0800
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Subject: [PATCH 035/116] ASoC: dt-bindings: Add StarFive JH7110 PWM-DAC
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controller
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Add bindings for the PWM-DAC controller on the JH7110
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RISC-V SoC by StarFive Ltd.
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Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
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Link: https://lore.kernel.org/r/20230814080618.10036-2-hal.feng@starfivetech.com
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Signed-off-by: Mark Brown <broonie@kernel.org>
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---
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.../sound/starfive,jh7110-pwmdac.yaml | 76 +++++++++++++++++++
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1 file changed, 76 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/sound/starfive,jh7110-pwmdac.yaml
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/sound/starfive,jh7110-pwmdac.yaml
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@@ -0,0 +1,76 @@
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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+%YAML 1.2
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+---
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+$id: http://devicetree.org/schemas/sound/starfive,jh7110-pwmdac.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: StarFive JH7110 PWM-DAC Controller
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+
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+description:
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+ The PWM-DAC Controller uses PWM square wave generators plus RC filters to
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+ form a DAC for audio play in StarFive JH7110 SoC. This audio play controller
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+ supports 16 bit audio format, up to 48K sampling frequency, up to left and
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+ right dual channels.
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+
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+maintainers:
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+ - Hal Feng <hal.feng@starfivetech.com>
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+
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+allOf:
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+ - $ref: dai-common.yaml#
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+
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+properties:
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+ compatible:
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+ const: starfive,jh7110-pwmdac
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+
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+ reg:
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+ maxItems: 1
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+
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+ clocks:
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+ items:
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+ - description: PWMDAC APB
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+ - description: PWMDAC CORE
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+
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+ clock-names:
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+ items:
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+ - const: apb
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+ - const: core
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+
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+ resets:
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+ maxItems: 1
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+ description: PWMDAC APB
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+
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+ dmas:
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+ maxItems: 1
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+ description: TX DMA Channel
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+
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+ dma-names:
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+ const: tx
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+
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+ "#sound-dai-cells":
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+ const: 0
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+
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+required:
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+ - compatible
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+ - reg
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+ - clocks
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+ - clock-names
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+ - resets
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+ - dmas
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+ - dma-names
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+ - "#sound-dai-cells"
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+
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+additionalProperties: false
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+
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+examples:
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+ - |
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+ pwmdac@100b0000 {
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+ compatible = "starfive,jh7110-pwmdac";
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+ reg = <0x100b0000 0x1000>;
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+ clocks = <&syscrg 157>,
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+ <&syscrg 158>;
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+ clock-names = "apb", "core";
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+ resets = <&syscrg 96>;
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+ dmas = <&dma 22>;
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+ dma-names = "tx";
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+ #sound-dai-cells = <0>;
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+ };
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