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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/fsl,xcvr.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP Audio Transceiver (XCVR) Controller
maintainers:
- Viorel Suman <viorel.suman@nxp.com>
description: |
NXP XCVR (Audio Transceiver) is a on-chip functional module
that allows CPU to receive and transmit digital audio via
HDMI2.1 eARC, HDMI1.4 ARC and SPDIF.
properties:
$nodename:
pattern: "^xcvr@.*"
compatible:
enum:
- fsl,imx8mp-xcvr
reg:
items:
- description: 20K RAM for code and data
- description: registers space
- description: RX FIFO address
- description: TX FIFO address
reg-names:
items:
- const: ram
- const: regs
- const: rxfifo
- const: txfifo
interrupts:
maxItems: 1
clocks:
items:
- description: Peripheral clock
- description: PHY clock
- description: SPBA clock
- description: PLL clock
clock-names:
items:
- const: ipg
- const: phy
- const: spba
- const: pll_ipg
dmas:
items:
- description: DMA controller phandle and request line for RX
- description: DMA controller phandle and request line for TX
dma-names:
items:
- const: rx
- const: tx
resets:
maxItems: 1
required:
- compatible
- reg
- reg-names
- interrupts
- clocks
- clock-names
- dmas
- dma-names
- resets
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/imx8mp-clock.h>
#include <dt-bindings/reset/imx8mp-reset.h>
xcvr: xcvr@30cc0000 {
compatible = "fsl,imx8mp-xcvr";
reg = <0x30cc0000 0x800>,
<0x30cc0800 0x400>,
<0x30cc0c00 0x080>,
<0x30cc0e00 0x080>;
reg-names = "ram", "regs", "rxfifo", "txfifo";
interrupts = <0x0 128 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_IPG>,
<&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_PHY>,
<&audiomix_clk IMX8MP_CLK_AUDIOMIX_SPBA2_ROOT>,
<&audiomix_clk IMX8MP_CLK_AUDIOMIX_AUDPLL_ROOT>;
clock-names = "ipg", "phy", "spba", "pll_ipg";
dmas = <&sdma2 30 2 0>, <&sdma2 31 2 0>;
dma-names = "rx", "tx";
resets = <&audiomix_reset 0>;
};
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