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-rw-r--r-- | Documentation/devicetree/bindings/sound/atmel,sama5d2-i2s.yaml | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/atmel,sama5d2-i2s.yaml b/Documentation/devicetree/bindings/sound/atmel,sama5d2-i2s.yaml new file mode 100644 index 000000000..0cd1ff89b --- /dev/null +++ b/Documentation/devicetree/bindings/sound/atmel,sama5d2-i2s.yaml @@ -0,0 +1,85 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/atmel,sama5d2-i2s.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Atmel I2S controller + +maintainers: + - Nicolas Ferre <nicolas.ferre@microchip.com> + - Alexandre Belloni <alexandre.belloni@bootlin.com> + - Claudiu Beznea <claudiu.beznea@microchip.com> + +description: + Atmel I2S (Inter-IC Sound Controller) bus is the standard + interface for connecting audio devices, such as audio codecs. + +properties: + compatible: + const: atmel,sama5d2-i2s + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Peripheral clock + - description: Generated clock (Optional) + - description: I2S mux clock (Optional). Set + with gclk when Master Mode is required. + minItems: 1 + + clock-names: + items: + - const: pclk + - const: gclk + - const: muxclk + minItems: 1 + + dmas: + items: + - description: TX DMA Channel + - description: RX DMA Channel + + dma-names: + items: + - const: tx + - const: rx + +required: + - compatible + - reg + - interrupts + - dmas + - dma-names + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/dma/at91.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + + i2s@f8050000 { + compatible = "atmel,sama5d2-i2s"; + reg = <0xf8050000 0x300>; + interrupts = <54 IRQ_TYPE_LEVEL_HIGH 7>; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(31))>, + <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(32))>; + dma-names = "tx", "rx"; + clocks = <&i2s0_clk>, <&i2s0_gclk>, <&i2s0muxck>; + clock-names = "pclk", "gclk", "muxclk"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2s0_default>; + }; |