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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/davinci-mcbsp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: McBSP Controller for TI SoCs
maintainers:
- Bastien Curutchet <bastien.curutchet@bootlin.com>
allOf:
- $ref: dai-common.yaml#
properties:
compatible:
enum:
- ti,da850-mcbsp
reg:
minItems: 1
items:
- description: CFG registers
- description: data registers
reg-names:
minItems: 1
items:
- const: mpu
- const: dat
dmas:
items:
- description: transmission DMA channel
- description: reception DMA channel
dma-names:
items:
- const: tx
- const: rx
interrupts:
items:
- description: RX interrupt
- description: TX interrupt
interrupt-names:
items:
- const: rx
- const: tx
clocks:
minItems: 1
items:
- description: functional clock
- description: external input clock for sample rate generator.
clock-names:
minItems: 1
items:
- const: fck
- const: clks
power-domains:
maxItems: 1
"#sound-dai-cells":
const: 0
ti,T1-framing-tx:
$ref: /schemas/types.yaml#/definitions/flag
description:
If the property is present, tx data delay is set to 2 bit clock periods.
McBSP will insert a blank period (high-impedance period) before the first
data bit. This can be used to interface to T1-framing devices.
ti,T1-framing-rx:
$ref: /schemas/types.yaml#/definitions/flag
description:
If the property is present, rx data delay is set to 2 bit clock periods.
McBSP will discard the bit preceding the data stream (called framing bit).
This can be used to interface to T1-framing devices.
required:
- "#sound-dai-cells"
- compatible
- reg
- reg-names
- dmas
- dma-names
- clocks
unevaluatedProperties: false
examples:
- |
mcbsp0@1d10000 {
#sound-dai-cells = <0>;
compatible = "ti,da850-mcbsp";
pinctrl-names = "default";
pinctrl-0 = <&mcbsp0_pins>;
reg = <0x111000 0x1000>,
<0x311000 0x1000>;
reg-names = "mpu", "dat";
interrupts = <97>, <98>;
interrupt-names = "rx", "tx";
dmas = <&edma0 3 1>,
<&edma0 2 1>;
dma-names = "tx", "rx";
clocks = <&psc1 14>;
};
|
