146 lines
5.0 KiB
YAML
146 lines
5.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
# Copyright (C) 2020 Texas Instruments Incorporated
|
|
# Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/sound/ti,j721e-cpb-ivi-audio.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Texas Instruments J721e Common Processor Board Audio Support
|
|
|
|
maintainers:
|
|
- Peter Ujfalusi <peter.ujfalusi@gmail.com>
|
|
|
|
description: |
|
|
The Infotainment board plugs into the Common Processor Board, the support of the
|
|
extension board is extending the CPB audio support, decribed in:
|
|
sound/ti,j721e-cpb-audio.txt
|
|
|
|
The audio support on the Infotainment Expansion Board consists of McASP0
|
|
connected to two pcm3168a codecs with dedicated set of serializers to each.
|
|
The SCKI for pcm3168a is sourced from j721e AUDIO_REFCLK0 pin.
|
|
|
|
In order to support 48KHz and 44.1KHz family of sampling rates the parent clock
|
|
for AUDIO_REFCLK0 needs to be changed between PLL4 (for 48KHz) and PLL15 (for
|
|
44.1KHz). The same PLLs are used for McASP0's AUXCLK clock via different
|
|
HSDIVIDER.
|
|
|
|
Note: the same PLL4 and PLL15 is used by the audio support on the CPB!
|
|
|
|
Clocking setup for 48KHz family:
|
|
PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
|
|
| |-> MCASP0_AUXCLK ---> McASP0.auxclk
|
|
|
|
|
|-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
|
|
|-> AUDIO_REFCLK0 ---> pcm3168a_a/b.SCKI
|
|
|
|
Clocking setup for 44.1KHz family:
|
|
PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
|
|
| |-> MCASP0_AUXCLK ---> McASP0.auxclk
|
|
|
|
|
|-> PLL15_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
|
|
|-> AUDIO_REFCLK0 ---> pcm3168a_a/b.SCKI
|
|
|
|
properties:
|
|
compatible:
|
|
items:
|
|
- const: ti,j721e-cpb-ivi-audio
|
|
|
|
model:
|
|
$ref: /schemas/types.yaml#/definitions/string
|
|
description: User specified audio sound card name
|
|
|
|
ti,cpb-mcasp:
|
|
description: phandle to McASP used on CPB
|
|
$ref: /schemas/types.yaml#/definitions/phandle
|
|
|
|
ti,cpb-codec:
|
|
description: phandle to the pcm3168a codec used on the CPB
|
|
$ref: /schemas/types.yaml#/definitions/phandle
|
|
|
|
ti,ivi-mcasp:
|
|
description: phandle to McASP used on IVI
|
|
$ref: /schemas/types.yaml#/definitions/phandle
|
|
|
|
ti,ivi-codec-a:
|
|
description: phandle to the pcm3168a-A codec on the expansion board
|
|
$ref: /schemas/types.yaml#/definitions/phandle
|
|
|
|
ti,ivi-codec-b:
|
|
description: phandle to the pcm3168a-B codec on the expansion board
|
|
$ref: /schemas/types.yaml#/definitions/phandle
|
|
|
|
clocks:
|
|
items:
|
|
- description: AUXCLK clock for McASP used by CPB audio
|
|
- description: Parent for CPB_McASP auxclk (for 48KHz)
|
|
- description: Parent for CPB_McASP auxclk (for 44.1KHz)
|
|
- description: SCKI clock for the pcm3168a codec on CPB
|
|
- description: Parent for CPB_SCKI clock (for 48KHz)
|
|
- description: Parent for CPB_SCKI clock (for 44.1KHz)
|
|
- description: AUXCLK clock for McASP used by IVI audio
|
|
- description: Parent for IVI_McASP auxclk (for 48KHz)
|
|
- description: Parent for IVI_McASP auxclk (for 44.1KHz)
|
|
- description: SCKI clock for the pcm3168a codec on IVI
|
|
- description: Parent for IVI_SCKI clock (for 48KHz)
|
|
- description: Parent for IVI_SCKI clock (for 44.1KHz)
|
|
|
|
clock-names:
|
|
items:
|
|
- const: cpb-mcasp-auxclk
|
|
- const: cpb-mcasp-auxclk-48000
|
|
- const: cpb-mcasp-auxclk-44100
|
|
- const: cpb-codec-scki
|
|
- const: cpb-codec-scki-48000
|
|
- const: cpb-codec-scki-44100
|
|
- const: ivi-mcasp-auxclk
|
|
- const: ivi-mcasp-auxclk-48000
|
|
- const: ivi-mcasp-auxclk-44100
|
|
- const: ivi-codec-scki
|
|
- const: ivi-codec-scki-48000
|
|
- const: ivi-codec-scki-44100
|
|
|
|
required:
|
|
- compatible
|
|
- model
|
|
- ti,cpb-mcasp
|
|
- ti,cpb-codec
|
|
- ti,ivi-mcasp
|
|
- ti,ivi-codec-a
|
|
- ti,ivi-codec-b
|
|
- clocks
|
|
- clock-names
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |+
|
|
sound {
|
|
compatible = "ti,j721e-cpb-ivi-audio";
|
|
model = "j721e-cpb-ivi";
|
|
|
|
ti,cpb-mcasp = <&mcasp10>;
|
|
ti,cpb-codec = <&pcm3168a_1>;
|
|
|
|
ti,ivi-mcasp = <&mcasp0>;
|
|
ti,ivi-codec-a = <&pcm3168a_a>;
|
|
ti,ivi-codec-b = <&pcm3168a_b>;
|
|
|
|
clocks = <&k3_clks 184 1>,
|
|
<&k3_clks 184 2>, <&k3_clks 184 4>,
|
|
<&k3_clks 157 371>,
|
|
<&k3_clks 157 400>, <&k3_clks 157 401>,
|
|
<&k3_clks 174 1>,
|
|
<&k3_clks 174 2>, <&k3_clks 174 4>,
|
|
<&k3_clks 157 301>,
|
|
<&k3_clks 157 330>, <&k3_clks 157 331>;
|
|
clock-names = "cpb-mcasp-auxclk",
|
|
"cpb-mcasp-auxclk-48000", "cpb-mcasp-auxclk-44100",
|
|
"cpb-codec-scki",
|
|
"cpb-codec-scki-48000", "cpb-codec-scki-44100",
|
|
"ivi-mcasp-auxclk",
|
|
"ivi-mcasp-auxclk-48000", "ivi-mcasp-auxclk-44100",
|
|
"ivi-codec-scki",
|
|
"ivi-codec-scki-48000", "ivi-codec-scki-44100";
|
|
};
|