mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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da98e8b970
Add microchip,sam9x7-ssc to DT bindings documentation. Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20250610065005.64070-1-varshini.rajendran@microchip.com Signed-off-by: Mark Brown <broonie@kernel.org>
110 lines
2.5 KiB
YAML
110 lines
2.5 KiB
YAML
# 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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$id: http://devicetree.org/schemas/sound/atmel,at91-ssc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Atmel Serial Synchronous Serial (SSC)
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maintainers:
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- Andrei Simion <andrei.simion@microchip.com>
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description:
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The Atmel Synchronous Serial Controller (SSC) provides a versatile
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synchronous communication link for audio and telecom applications,
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supporting protocols like I2S, Short Frame Sync, and Long Frame Sync.
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properties:
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compatible:
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oneOf:
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- enum:
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- atmel,at91rm9200-ssc
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- atmel,at91sam9g45-ssc
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- items:
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- enum:
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- microchip,sam9x7-ssc
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- const: atmel,at91sam9g45-ssc
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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clock-names:
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items:
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- const: pclk
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dmas:
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items:
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- description: TX DMA Channel
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- description: RX DMA Channel
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dma-names:
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items:
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- const: tx
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- const: rx
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atmel,clk-from-rk-pin:
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description:
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Specify the clock source for the SSC (Synchronous Serial Controller)
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when operating in slave mode. By default, the clock is sourced from
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the TK pin.
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type: boolean
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"#sound-dai-cells":
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const: 0
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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allOf:
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- $ref: dai-common.yaml#
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- if:
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properties:
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compatible:
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contains:
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enum:
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- atmel,at91sam9g45-ssc
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then:
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required:
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- dmas
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- dma-names
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/at91.h>
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#include <dt-bindings/dma/at91.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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ssc@100000 {
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compatible = "atmel,at91sam9g45-ssc";
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reg = <0x100000 0x4000>;
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interrupts = <28 IRQ_TYPE_LEVEL_HIGH 5>;
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dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
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AT91_XDMAC_DT_PERID(38))>,
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<&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
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AT91_XDMAC_DT_PERID(39))>;
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dma-names = "tx", "rx";
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clocks = <&pmc PMC_TYPE_PERIPHERAL 28>;
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clock-names = "pclk";
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#sound-dai-cells = <0>;
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};
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ssc@c00000 {
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compatible = "atmel,at91rm9200-ssc";
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reg = <0xc00000 0x4000>;
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interrupts = <14 IRQ_TYPE_LEVEL_HIGH 5>;
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clocks = <&pmc PMC_TYPE_PERIPHERAL 14>;
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clock-names = "pclk";
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};
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