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+# 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:
+ oneOf:
+ - enum:
+ - atmel,at91rm9200-ssc
+ - atmel,at91sam9g45-ssc
+ - items:
+ - enum:
+ - microchip,sam9x7-ssc
+ - const: 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";
+ };