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Diffstat (limited to 'Documentation/devicetree/bindings/sound/atmel,sama5d2-classd.yaml')
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diff --git a/Documentation/devicetree/bindings/sound/atmel,sama5d2-classd.yaml b/Documentation/devicetree/bindings/sound/atmel,sama5d2-classd.yaml new file mode 100644 index 000000000..43d04702a --- /dev/null +++ b/Documentation/devicetree/bindings/sound/atmel,sama5d2-classd.yaml @@ -0,0 +1,100 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/atmel,sama5d2-classd.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Atmel ClassD Amplifier + +maintainers: + - Nicolas Ferre <nicolas.ferre@microchip.com> + - Alexandre Belloni <alexandre.belloni@bootlin.com> + - Claudiu Beznea <claudiu.beznea@microchip.com> + +description: + The Audio Class D Amplifier (CLASSD) is a digital input, Pulse Width + Modulated (PWM) output stereo Class D amplifier. + +properties: + compatible: + const: atmel,sama5d2-classd + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + dmas: + maxItems: 1 + + dma-names: + const: tx + + clocks: + maxItems: 2 + + clock-names: + items: + - const: pclk + - const: gclk + + atmel,model: + $ref: /schemas/types.yaml#/definitions/string + default: CLASSD + description: The user-visible name of this sound complex. + + atmel,pwm-type: + $ref: /schemas/types.yaml#/definitions/string + enum: + - single + - diff + default: single + description: PWM modulation type. + + atmel,non-overlap-time: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: + - 5 + - 10 + - 15 + - 20 + default: 10 + description: + Set non-overlapping time, the unit is nanosecond(ns). + Non-overlapping will be disabled if not specified. + +required: + - compatible + - reg + - interrupts + - dmas + - dma-names + - clock-names + - clocks + +additionalProperties: false + +examples: + - | + #include <dt-bindings/dma/at91.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + + classd: sound@fc048000 { + compatible = "atmel,sama5d2-classd"; + reg = <0xfc048000 0x100>; + interrupts = <59 IRQ_TYPE_LEVEL_HIGH 7>; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) + | AT91_XDMAC_DT_PERID(47))>; + dma-names = "tx"; + clocks = <&classd_clk>, <&classd_gclk>; + clock-names = "pclk", "gclk"; + assigned-clocks = <&classd_gclk>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_classd_default>; + atmel,model = "classd @ SAMA5D2-Xplained"; + atmel,pwm-type = "diff"; + atmel,non-overlap-time = <10>; + }; |