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Diffstat (limited to 'dts/upstream/Bindings/sound/atmel,at91-ssc.yaml')
-rw-r--r-- | dts/upstream/Bindings/sound/atmel,at91-ssc.yaml | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/dts/upstream/Bindings/sound/atmel,at91-ssc.yaml b/dts/upstream/Bindings/sound/atmel,at91-ssc.yaml new file mode 100644 index 00000000000..a05e6143182 --- /dev/null +++ b/dts/upstream/Bindings/sound/atmel,at91-ssc.yaml @@ -0,0 +1,104 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/atmel,at91-ssc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Atmel Serial Synchronous Serial (SSC) + +maintainers: + - Andrei Simion <andrei.simion@microchip.com> + +description: + The Atmel Synchronous Serial Controller (SSC) provides a versatile + synchronous communication link for audio and telecom applications, + supporting protocols like I2S, Short Frame Sync, and Long Frame Sync. + +properties: + compatible: + enum: + - atmel,at91rm9200-ssc + - atmel,at91sam9g45-ssc + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: pclk + + dmas: + items: + - description: TX DMA Channel + - description: RX DMA Channel + + dma-names: + items: + - const: tx + - const: rx + + atmel,clk-from-rk-pin: + description: + Specify the clock source for the SSC (Synchronous Serial Controller) + when operating in slave mode. By default, the clock is sourced from + the TK pin. + type: boolean + + "#sound-dai-cells": + const: 0 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +allOf: + - $ref: dai-common.yaml# + - if: + properties: + compatible: + contains: + enum: + - atmel,at91sam9g45-ssc + then: + required: + - dmas + - dma-names + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/at91.h> + #include <dt-bindings/dma/at91.h> + #include <dt-bindings/interrupt-controller/irq.h> + + ssc@100000 { + compatible = "atmel,at91sam9g45-ssc"; + reg = <0x100000 0x4000>; + interrupts = <28 IRQ_TYPE_LEVEL_HIGH 5>; + dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(38))>, + <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(39))>; + dma-names = "tx", "rx"; + clocks = <&pmc PMC_TYPE_PERIPHERAL 28>; + clock-names = "pclk"; + #sound-dai-cells = <0>; + }; + + ssc@c00000 { + compatible = "atmel,at91rm9200-ssc"; + reg = <0xc00000 0x4000>; + interrupts = <14 IRQ_TYPE_LEVEL_HIGH 5>; + clocks = <&pmc PMC_TYPE_PERIPHERAL 14>; + clock-names = "pclk"; + }; |